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wolfssl-w32/src/ssl_crypto.c

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/* ssl_crypto.c
*
* Copyright (C) 2006-2023 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
#ifndef WOLFSSL_SSL_CRYPTO_INCLUDED
#ifndef WOLFSSL_IGNORE_FILE_WARN
#warning ssl_crypto.c does not need to be compiled separately from ssl.c
#endif
#else
/*******************************************************************************
* START OF Digest APIs
******************************************************************************/
#ifdef OPENSSL_EXTRA
#ifndef NO_MD4
/* Initialize MD4 hash operation.
*
* @param [in, out] md4 MD4 context object.
*/
void wolfSSL_MD4_Init(WOLFSSL_MD4_CTX* md4)
{
/* Ensure WOLFSSL_MD4_CTX is big enough for wolfCrypt Md4. */
typedef char ok[sizeof(md4->buffer) >= sizeof(Md4) ? 1 : -1];
(void)sizeof(ok);
WOLFSSL_ENTER("MD4_Init");
/* Initialize wolfCrypt MD4 object. */
wc_InitMd4((Md4*)md4);
}
/* Update MD4 hash with data.
*
* @param [in, out] md4 MD4 context object.
* @param [in] data Data to be hashed.
* @param [in] len Length of data in bytes.
*/
void wolfSSL_MD4_Update(WOLFSSL_MD4_CTX* md4, const void* data,
unsigned long len)
{
WOLFSSL_ENTER("MD4_Update");
/* Update wolfCrypt MD4 object with data. */
wc_Md4Update((Md4*)md4, (const byte*)data, (word32)len);
}
/* Finalize MD4 hash and return output.
*
* @param [out] digest Hash output.
* Must be able to hold MD4_DIGEST_SIZE bytes.
* @param [in, out] md4 MD4 context object.
*/
void wolfSSL_MD4_Final(unsigned char* digest, WOLFSSL_MD4_CTX* md4)
{
WOLFSSL_ENTER("MD4_Final");
/* Finalize wolfCrypt MD4 hash into digest. */
wc_Md4Final((Md4*)md4, digest);
}
#endif /* NO_MD4 */
#endif /* OPENSSL_EXTRA */
#if defined(OPENSSL_EXTRA) || defined(HAVE_CURL)
#ifndef NO_MD5
/* Initialize MD5 hash operation.
*
* @param [in, out] md5 MD5 context object.
* @return 1 on success.
* @return 0 when md5 is NULL.
*/
int wolfSSL_MD5_Init(WOLFSSL_MD5_CTX* md5)
{
/* Ensure WOLFSSL_MD5_CTX is big enough for wolfCrypt wc_Md5. */
typedef char md5_test[sizeof(WOLFSSL_MD5_CTX) >= sizeof(wc_Md5) ? 1 : -1];
(void)sizeof(md5_test);
WOLFSSL_ENTER("MD5_Init");
/* Initialize wolfCrypt MD5 object. */
return wc_InitMd5((wc_Md5*)md5) == 0;
}
/* Update MD5 hash with data.
*
* @param [in, out] md5 MD5 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when md5 is NULL.
*/
int wolfSSL_MD5_Update(WOLFSSL_MD5_CTX* md5, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("MD5_Update");
/* Update wolfCrypt MD5 object with data. */
return wc_Md5Update((wc_Md5*)md5, (const byte*)input, (word32)sz) == 0;
}
/* Finalize MD5 hash and return output.
*
* @param [out] digest Hash output.
* Must be able to hold MD5_DIGEST_SIZE bytes.
* @param [in, out] md5 MD5 context object.
* @return 1 on success.
* @return 0 when md5 or output is NULL.
*/
int wolfSSL_MD5_Final(byte* output, WOLFSSL_MD5_CTX* md5)
{
int ret;
WOLFSSL_ENTER("MD5_Final");
/* Finalize wolfCrypt MD5 hash into output. */
ret = (wc_Md5Final((wc_Md5*)md5, output) == 0);
/* Free resources here, as OpenSSL API doesn't include MD5_Free(). */
wc_Md5Free((wc_Md5*)md5);
return ret;
}
/* Apply MD5 transformation to the data.
*
* 'data' has words reversed in this function when big endian.
*
* @param [in, out] md5 MD5 context object.
* @param [in, out] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when md5 or data is NULL.
*/
int wolfSSL_MD5_Transform(WOLFSSL_MD5_CTX* md5, const unsigned char* data)
{
WOLFSSL_ENTER("MD5_Transform");
#if defined(BIG_ENDIAN_ORDER)
/* Byte reversal done outside transform. */
if ((md5 != NULL) && (data != NULL)) {
ByteReverseWords((word32*)data, (word32*)data, WC_MD5_BLOCK_SIZE);
}
#endif
/* Transform block of data with wolfCrypt MD5 object. */
return wc_Md5Transform((wc_Md5*)md5, data) == 0;
}
/* One shot MD5 hash of data.
*
* When hash is null, a static buffer of MD5_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to be hashed.
* @param [in] len Length of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold MD5_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_MD5(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static unsigned char dgst[WC_MD5_DIGEST_SIZE];
WOLFSSL_ENTER("wolfSSL_MD5");
/* Ensure buffer available for digest result. */
if (hash == NULL) {
hash = dgst;
}
/* One shot MD5 hash with wolfCrypt. */
if (wc_Md5Hash(data, (word32)len, hash) != 0) {
WOLFSSL_MSG("wc_Md5Hash error");
hash = NULL;
}
return hash;
}
#endif /* !NO_MD5 */
#ifndef NO_SHA
/* Initialize SHA hash operation.
*
* @param [in, out] sha SHA context object.
* @return 1 on success.
* @return 0 when sha is NULL.
*/
int wolfSSL_SHA_Init(WOLFSSL_SHA_CTX* sha)
{
/* Ensure WOLFSSL_SHA_CTX is big enough for wolfCrypt wc_Sha. */
typedef char sha_test[sizeof(WOLFSSL_SHA_CTX) >= sizeof(wc_Sha) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA_Init");
/* Initialize wolfCrypt SHA object. */
return wc_InitSha((wc_Sha*)sha) == 0;
}
/* Update SHA hash with data.
*
* @param [in, out] sha SHA context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when md5 is NULL.
*/
int wolfSSL_SHA_Update(WOLFSSL_SHA_CTX* sha, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA_Update");
/* Update wolfCrypt SHA object with data. */
return wc_ShaUpdate((wc_Sha*)sha, (const byte*)input, (word32)sz) == 0;
}
/* Finalize SHA hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA_DIGEST_SIZE bytes.
* @param [in, out] sha SHA context object.
* @return 1 on success.
* @return 0 when sha or output is NULL.
*/
int wolfSSL_SHA_Final(byte* output, WOLFSSL_SHA_CTX* sha)
{
int ret;
WOLFSSL_ENTER("SHA_Final");
/* Finalize wolfCrypt SHA hash into output. */
ret = (wc_ShaFinal((wc_Sha*)sha, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA_Free(). */
wc_ShaFree((wc_Sha*)sha);
return ret;
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2)))
/* Apply SHA transformation to the data.
*
* 'data' has words reversed in this function when little endian.
*
* @param [in, out] sha SHA context object.
* @param [in, out] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha or data is NULL.
*/
int wolfSSL_SHA_Transform(WOLFSSL_SHA_CTX* sha, const unsigned char* data)
{
WOLFSSL_ENTER("SHA_Transform");
#if defined(LITTLE_ENDIAN_ORDER)
/* Byte reversal done outside transform. */
if ((sha != NULL) && (data != NULL)) {
ByteReverseWords((word32*)data, (word32*)data, WC_SHA_BLOCK_SIZE);
}
#endif
/* Transform block of data with wolfCrypt SHA object. */
return wc_ShaTransform((wc_Sha*)sha, data) == 0;
}
#endif
/* Initialize SHA-1 hash operation.
*
* @param [in, out] sha SHA context object.
* @return 1 on success.
* @return 0 when sha is NULL.
*/
int wolfSSL_SHA1_Init(WOLFSSL_SHA_CTX* sha)
{
WOLFSSL_ENTER("SHA1_Init");
return SHA_Init(sha);
}
/* Update SHA-1 hash with data.
*
* @param [in, out] sha SHA context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha is NULL.
*/
int wolfSSL_SHA1_Update(WOLFSSL_SHA_CTX* sha, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA1_Update");
return SHA_Update(sha, input, sz);
}
/* Finalize SHA-1 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA_DIGEST_SIZE bytes.
* @param [in, out] sha SHA context object.
* @return 1 on success.
* @return 0 when sha or output is NULL.
*/
int wolfSSL_SHA1_Final(byte* output, WOLFSSL_SHA_CTX* sha)
{
WOLFSSL_ENTER("SHA1_Final");
return SHA_Final(output, sha);
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2)))
/* Apply SHA-1 transformation to the data.
*
* 'data' has words reversed in this function when little endian.
*
* @param [in, out] sha SHA context object.
* @param [in, out] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha or data is NULL.
*/
int wolfSSL_SHA1_Transform(WOLFSSL_SHA_CTX* sha, const unsigned char* data)
{
WOLFSSL_ENTER("SHA1_Transform");
return wolfSSL_SHA_Transform(sha, data);
}
#endif
#endif /* !NO_SHA */
#ifndef NO_SHA256
#ifdef WOLFSSL_SHA224
/* Initialize SHA-224 hash operation.
*
* @param [in, out] sha224 SHA-224 context object.
* @return 1 on success.
* @return 0 when sha224 is NULL.
*/
int wolfSSL_SHA224_Init(WOLFSSL_SHA224_CTX* sha224)
{
/* Ensure WOLFSSL_SHA224_CTX is big enough for wolfCrypt wc_Sha224. */
typedef char sha_test[sizeof(SHA224_CTX) >= sizeof(wc_Sha224) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA224_Init");
/* Initialize wolfCrypt SHA-224 object. */
return wc_InitSha224((wc_Sha224*)sha224) == 0;
}
/* Update SHA-224 hash with data.
*
* @param [in, out] sha224 SHA-224 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha224 is NULL.
*/
int wolfSSL_SHA224_Update(WOLFSSL_SHA224_CTX* sha224, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA224_Update");
/* Update wolfCrypt SHA-224 object with data. */
return wc_Sha224Update((wc_Sha224*)sha224, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA-224 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA224_DIGEST_SIZE bytes.
* @param [in, out] sha224 SHA-224 context object.
* @return 1 on success.
* @return 0 when sha224 or output is NULL.
*/
int wolfSSL_SHA224_Final(byte* output, WOLFSSL_SHA224_CTX* sha224)
{
int ret;
WOLFSSL_ENTER("SHA224_Final");
/* Finalize wolfCrypt SHA-224 hash into output. */
ret = (wc_Sha224Final((wc_Sha224*)sha224, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA224_Free(). */
wc_Sha224Free((wc_Sha224*)sha224);
return ret;
}
#endif /* WOLFSSL_SHA224 */
/* Initialize SHA-256 hash operation.
*
* @param [in, out] sha256 SHA-256 context object.
* @return 1 on success.
* @return 0 when sha256 is NULL.
*/
int wolfSSL_SHA256_Init(WOLFSSL_SHA256_CTX* sha256)
{
/* Ensure WOLFSSL_SHA256_CTX is big enough for wolfCrypt wc_Sha256. */
typedef char sha_test[sizeof(SHA256_CTX) >= sizeof(wc_Sha256) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA256_Init");
/* Initialize wolfCrypt SHA-256 object. */
return wc_InitSha256((wc_Sha256*)sha256) == 0;
}
/* Update SHA-256 hash with data.
*
* @param [in, out] sha256 SHA-256 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha256 is NULL.
*/
int wolfSSL_SHA256_Update(WOLFSSL_SHA256_CTX* sha256, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA256_Update");
/* Update wolfCrypt SHA-256 object with data. */
return wc_Sha256Update((wc_Sha256*)sha256, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA-256 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA256_DIGEST_SIZE bytes.
* @param [in, out] sha256 SHA-256 context object.
* @return 1 on success.
* @return 0 when sha256 or output is NULL.
*/
int wolfSSL_SHA256_Final(byte* output, WOLFSSL_SHA256_CTX* sha256)
{
int ret;
WOLFSSL_ENTER("SHA256_Final");
/* Finalize wolfCrypt SHA-256 hash into output. */
ret = (wc_Sha256Final((wc_Sha256*)sha256, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA256_Free(). */
wc_Sha256Free((wc_Sha256*)sha256);
return ret;
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2))) && \
!defined(WOLFSSL_DEVCRYPTO_HASH) && !defined(WOLFSSL_AFALG_HASH) && \
!defined(WOLFSSL_KCAPI_HASH) /* doesn't support direct transform */
/* Apply SHA-256 transformation to the data.
*
* 'data' has words reversed in this function when little endian.
*
* @param [in, out] sha256 SHA256 context object.
* @param [in, out] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha256 or data is NULL.
*/
int wolfSSL_SHA256_Transform(WOLFSSL_SHA256_CTX* sha256,
const unsigned char* data)
{
WOLFSSL_ENTER("SHA256_Transform");
#if defined(LITTLE_ENDIAN_ORDER)
/* Byte reversal done outside transform. */
if ((sha256 != NULL) && (data != NULL)) {
ByteReverseWords((word32*)data, (word32*)data, WC_SHA256_BLOCK_SIZE);
}
#endif
/* Transform block of data with wolfCrypt SHA-256 object. */
return wc_Sha256Transform((wc_Sha256*)sha256, data) == 0;
}
#endif
#endif /* !NO_SHA256 */
#ifdef WOLFSSL_SHA384
/* Initialize SHA-384 hash operation.
*
* @param [in, out] sha384 SHA-384 context object.
* @return 1 on success.
* @return 0 when sha384 is NULL.
*/
int wolfSSL_SHA384_Init(WOLFSSL_SHA384_CTX* sha384)
{
/* Ensure WOLFSSL_SHA384_CTX is big enough for wolfCrypt wc_Sha384. */
typedef char sha_test[sizeof(SHA384_CTX) >= sizeof(wc_Sha384) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA384_Init");
/* Initialize wolfCrypt SHA-384 object. */
return wc_InitSha384((wc_Sha384*)sha384) == 0;
}
/* Update SHA-384 hash with data.
*
* @param [in, out] sha384 SHA-384 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha384 is NULL.
*/
int wolfSSL_SHA384_Update(WOLFSSL_SHA384_CTX* sha384, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA384_Update");
/* Update wolfCrypt SHA-384 object with data. */
return wc_Sha384Update((wc_Sha384*)sha384, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA-384 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA384_DIGEST_SIZE bytes.
* @param [in, out] sha384 SHA-384 context object.
* @return 1 on success.
* @return 0 when sha384 or output is NULL.
*/
int wolfSSL_SHA384_Final(byte* output, WOLFSSL_SHA384_CTX* sha384)
{
int ret;
WOLFSSL_ENTER("SHA384_Final");
/* Finalize wolfCrypt SHA-384 hash into output. */
ret = (wc_Sha384Final((wc_Sha384*)sha384, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA384_Free(). */
wc_Sha384Free((wc_Sha384*)sha384);
return ret;
}
#endif /* WOLFSSL_SHA384 */
#ifdef WOLFSSL_SHA512
/* Initialize SHA-512 hash operation.
*
* @param [in, out] sha512 SHA-512 context object.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_Init(WOLFSSL_SHA512_CTX* sha512)
{
/* Ensure WOLFSSL_SHA512_CTX is big enough for wolfCrypt wc_Sha512. */
typedef char sha_test[sizeof(SHA512_CTX) >= sizeof(wc_Sha512) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA512_Init");
/* Initialize wolfCrypt SHA-512 object. */
return wc_InitSha512((wc_Sha512*)sha512) == 0;
}
/* Update SHA-512 hash with data.
*
* @param [in, out] sha512 SHA-512 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_Update(WOLFSSL_SHA512_CTX* sha512, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA512_Update");
/* Update wolfCrypt SHA-512 object with data. */
return wc_Sha512Update((wc_Sha512*)sha512, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA-512 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA512_DIGEST_SIZE bytes.
* @param [in, out] sha512 SHA-512 context object.
* @return 1 on success.
* @return 0 when sha512 or output is NULL.
*/
int wolfSSL_SHA512_Final(byte* output, WOLFSSL_SHA512_CTX* sha512)
{
int ret;
WOLFSSL_ENTER("SHA512_Final");
/* Finalize wolfCrypt SHA-512 hash into output. */
ret = (wc_Sha512Final((wc_Sha512*)sha512, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA512_Free(). */
wc_Sha512Free((wc_Sha512*)sha512);
return ret;
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2))) && \
!defined(WOLFSSL_KCAPI_HASH) /* doesn't support direct transform */
/* Apply SHA-512 transformation to the data.
*
* @param [in, out] sha512 SHA512 context object.
* @param [in] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha512 or data is NULL.
*/
int wolfSSL_SHA512_Transform(WOLFSSL_SHA512_CTX* sha512,
const unsigned char* data)
{
WOLFSSL_ENTER("SHA512_Transform");
/* Transform block of data with wolfCrypt SHA-512 object. */
return wc_Sha512Transform((wc_Sha512*)sha512, data) == 0;
}
#endif /* !defined(HAVE_FIPS) || (defined(HAVE_FIPS_VERSION) && \
(HAVE_FIPS_VERSION > 2)) && !WOLFSSL_KCAPI_HASH */
#if !defined(WOLFSSL_NOSHA512_224) && \
(!defined(HAVE_FIPS) || FIPS_VERSION_GE(5, 3)) && !defined(HAVE_SELFTEST)
/* Initialize SHA-512-224 hash operation.
*
* @param [in, out] sha512 SHA-512-224 context object.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_224_Init(WOLFSSL_SHA512_224_CTX* sha512)
{
WOLFSSL_ENTER("SHA512_224_Init");
/* Initialize wolfCrypt SHA-512-224 object. */
return wc_InitSha512_224((wc_Sha512*)sha512) == 0;
}
/* Update SHA-512-224 hash with data.
*
* @param [in, out] sha512 SHA-512-224 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_224_Update(WOLFSSL_SHA512_224_CTX* sha512, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA512_224_Update");
/* Update wolfCrypt SHA-512-224 object with data. */
return wc_Sha512_224Update((wc_Sha512*)sha512, (const byte*)input,
(word32)sz) == 0;
}
/* Finalize SHA-512-224 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA224_DIGEST_SIZE bytes.
* @param [in, out] sha512 SHA-512-224 context object.
* @return 1 on success.
* @return 0 when sha512 or output is NULL.
*/
int wolfSSL_SHA512_224_Final(byte* output, WOLFSSL_SHA512_224_CTX* sha512)
{
int ret;
WOLFSSL_ENTER("SHA512_224_Final");
/* Finalize wolfCrypt SHA-512-224 hash into output. */
ret = (wc_Sha512_224Final((wc_Sha512*)sha512, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA512_224_Free(). */
wc_Sha512_224Free((wc_Sha512*)sha512);
return ret;
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2)))
/* Apply SHA-512-224 transformation to the data.
*
* @param [in, out] sha512 SHA512 context object.
* @param [in] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha512 or data is NULL.
*/
int wolfSSL_SHA512_224_Transform(WOLFSSL_SHA512_CTX* sha512,
const unsigned char* data)
{
WOLFSSL_ENTER("SHA512_224_Transform");
/* Transform block of data with wolfCrypt SHA-512-224 object. */
return wc_Sha512_224Transform((wc_Sha512*)sha512, data) == 0;
}
#endif /* !defined(HAVE_FIPS) || (defined(HAVE_FIPS_VERSION) && \
(HAVE_FIPS_VERSION > 2)) */
#endif /* !WOLFSSL_NOSHA512_224 && !FIPS ... */
#if !defined(WOLFSSL_NOSHA512_256) && \
(!defined(HAVE_FIPS) || FIPS_VERSION_GE(5, 3)) && !defined(HAVE_SELFTEST)
/* Initialize SHA-512-256 hash operation.
*
* @param [in, out] sha512 SHA-512-256 context object.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_256_Init(WOLFSSL_SHA512_256_CTX* sha)
{
WOLFSSL_ENTER("SHA512_256_Init");
/* Initialize wolfCrypt SHA-512-256 object. */
return wc_InitSha512_256((wc_Sha512*)sha) == 0;
}
/* Update SHA-512-256 hash with data.
*
* @param [in, out] sha512 SHA-512-256 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha512 is NULL.
*/
int wolfSSL_SHA512_256_Update(WOLFSSL_SHA512_256_CTX* sha512, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA512_256_Update");
/* Update wolfCrypt SHA-512-256 object with data. */
return wc_Sha512_256Update((wc_Sha512*)sha512, (const byte*)input,
(word32)sz) == 0;
}
/* Finalize SHA-512-256 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA256_DIGEST_SIZE bytes.
* @param [in, out] sha512 SHA-512-256 context object.
* @return 1 on success.
* @return 0 when sha512 or output is NULL.
*/
int wolfSSL_SHA512_256_Final(byte* output, WOLFSSL_SHA512_256_CTX* sha512)
{
int ret;
WOLFSSL_ENTER("SHA512_256_Final");
/* Finalize wolfCrypt SHA-512-256 hash into output. */
ret = (wc_Sha512_256Final((wc_Sha512*)sha512, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA512_256_Free(). */
wc_Sha512_224Free((wc_Sha512*)sha512);
return ret;
}
#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2)))
/* Apply SHA-512-256 transformation to the data.
*
* @param [in, out] sha512 SHA512 context object.
* @param [in] data One block of data to be hashed.
* @return 1 on success.
* @return 0 when sha512 or data is NULL.
*/
int wolfSSL_SHA512_256_Transform(WOLFSSL_SHA512_CTX* sha512,
const unsigned char* data)
{
WOLFSSL_ENTER("SHA512_256_Transform");
/* Transform block of data with wolfCrypt SHA-512-256 object. */
return wc_Sha512_256Transform((wc_Sha512*)sha512, data) == 0;
}
#endif /* !defined(HAVE_FIPS) || (defined(HAVE_FIPS_VERSION) && \
(HAVE_FIPS_VERSION > 2)) */
#endif /* !WOLFSSL_NOSHA512_256 && !FIPS ... */
#endif /* WOLFSSL_SHA512 */
#ifdef WOLFSSL_SHA3
#ifndef WOLFSSL_NOSHA3_224
/* Initialize SHA3-224 hash operation.
*
* @param [in, out] sha3_224 SHA3-224 context object.
* @return 1 on success.
* @return 0 when sha3_224 is NULL.
*/
int wolfSSL_SHA3_224_Init(WOLFSSL_SHA3_224_CTX* sha3_224)
{
/* Ensure WOLFSSL_SHA3_224_CTX is big enough for wolfCrypt wc_Sha3. */
typedef char sha_test[sizeof(SHA3_224_CTX) >= sizeof(wc_Sha3) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA3_224_Init");
/* Initialize wolfCrypt SHA3-224 object. */
return wc_InitSha3_224((wc_Sha3*)sha3_224, NULL, INVALID_DEVID) == 0;
}
/* Update SHA3-224 hash with data.
*
* @param [in, out] sha3 SHA3-224 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha3 is NULL.
*/
int wolfSSL_SHA3_224_Update(WOLFSSL_SHA3_224_CTX* sha3, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA3_224_Update");
/* Update wolfCrypt SHA3-224 object with data. */
return wc_Sha3_224_Update((wc_Sha3*)sha3, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA3-224 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA3_224_DIGEST_SIZE bytes.
* @param [in, out] sha3 SHA3-224 context object.
* @return 1 on success.
* @return 0 when sha3 or output is NULL.
*/
int wolfSSL_SHA3_224_Final(byte* output, WOLFSSL_SHA3_224_CTX* sha3)
{
int ret;
WOLFSSL_ENTER("SHA3_224_Final");
/* Finalize wolfCrypt SHA3-224 hash into output. */
ret = (wc_Sha3_224_Final((wc_Sha3*)sha3, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA3_224_Free(). */
wc_Sha3_224_Free((wc_Sha3*)sha3);
return ret;
}
#endif /* WOLFSSL_NOSHA3_224 */
#ifndef WOLFSSL_NOSHA3_256
/* Initialize SHA3-256 hash operation.
*
* @param [in, out] sha3_256 SHA3-256 context object.
* @return 1 on success.
* @return 0 when sha3_256 is NULL.
*/
int wolfSSL_SHA3_256_Init(WOLFSSL_SHA3_256_CTX* sha3_256)
{
/* Ensure WOLFSSL_SHA3_256_CTX is big enough for wolfCrypt wc_Sha3. */
typedef char sha_test[sizeof(SHA3_256_CTX) >= sizeof(wc_Sha3) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA3_256_Init");
/* Initialize wolfCrypt SHA3-256 object. */
return wc_InitSha3_256((wc_Sha3*)sha3_256, NULL, INVALID_DEVID) == 0;
}
/* Update SHA3-256 hash with data.
*
* @param [in, out] sha3 SHA3-256 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha3 is NULL.
*/
int wolfSSL_SHA3_256_Update(WOLFSSL_SHA3_256_CTX* sha3, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA3_256_Update");
/* Update wolfCrypt SHA3-256 object with data. */
return wc_Sha3_256_Update((wc_Sha3*)sha3, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA3-256 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA3_256_DIGEST_SIZE bytes.
* @param [in, out] sha3 SHA3-256 context object.
* @return 1 on success.
* @return 0 when sha3 or output is NULL.
*/
int wolfSSL_SHA3_256_Final(byte* output, WOLFSSL_SHA3_256_CTX* sha3)
{
int ret;
WOLFSSL_ENTER("SHA3_256_Final");
/* Finalize wolfCrypt SHA3-256 hash into output. */
ret = (wc_Sha3_256_Final((wc_Sha3*)sha3, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA3_256_Free(). */
wc_Sha3_256_Free((wc_Sha3*)sha3);
return ret;
}
#endif /* WOLFSSL_NOSHA3_256 */
#ifndef WOLFSSL_NOSHA3_384
/* Initialize SHA3-384 hash operation.
*
* @param [in, out] sha3_384 SHA3-384 context object.
* @return 1 on success.
* @return 0 when sha3_384 is NULL.
*/
int wolfSSL_SHA3_384_Init(WOLFSSL_SHA3_384_CTX* sha3_384)
{
/* Ensure WOLFSSL_SHA3_384_CTX is big enough for wolfCrypt wc_Sha3. */
typedef char sha_test[sizeof(SHA3_384_CTX) >= sizeof(wc_Sha3) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA3_384_Init");
/* Initialize wolfCrypt SHA3-384 object. */
return wc_InitSha3_384((wc_Sha3*)sha3_384, NULL, INVALID_DEVID) == 0;
}
/* Update SHA3-384 hash with data.
*
* @param [in, out] sha3 SHA3-384 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha3 is NULL.
*/
int wolfSSL_SHA3_384_Update(WOLFSSL_SHA3_384_CTX* sha3, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA3_384_Update");
/* Update wolfCrypt SHA3-384 object with data. */
return wc_Sha3_384_Update((wc_Sha3*)sha3, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA3-384 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA3_384_DIGEST_SIZE bytes.
* @param [in, out] sha3 SHA3-384 context object.
* @return 1 on success.
* @return 0 when sha3 or output is NULL.
*/
int wolfSSL_SHA3_384_Final(byte* output, WOLFSSL_SHA3_384_CTX* sha3)
{
int ret;
WOLFSSL_ENTER("SHA3_384_Final");
/* Finalize wolfCrypt SHA3-384 hash into output. */
ret = (wc_Sha3_384_Final((wc_Sha3*)sha3, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA3_384_Free(). */
wc_Sha3_384_Free((wc_Sha3*)sha3);
return ret;
}
#endif /* WOLFSSL_NOSHA3_384 */
#ifndef WOLFSSL_NOSHA3_512
/* Initialize SHA3-512 hash operation.
*
* @param [in, out] sha3_512 SHA3-512 context object.
* @return 1 on success.
* @return 0 when sha3_512 is NULL.
*/
int wolfSSL_SHA3_512_Init(WOLFSSL_SHA3_512_CTX* sha3_512)
{
/* Ensure WOLFSSL_SHA3_512_CTX is big enough for wolfCrypt wc_Sha3. */
typedef char sha_test[sizeof(SHA3_512_CTX) >= sizeof(wc_Sha3) ? 1 : -1];
(void)sizeof(sha_test);
WOLFSSL_ENTER("SHA3_512_Init");
/* Initialize wolfCrypt SHA3-512 object. */
return wc_InitSha3_512((wc_Sha3*)sha3_512, NULL, INVALID_DEVID) == 0;
}
/* Update SHA3-512 hash with data.
*
* @param [in, out] sha3 SHA3-512 context object.
* @param [in] input Data to be hashed.
* @param [in] sz Length of data in bytes.
* @return 1 on success.
* @return 0 when sha3 is NULL.
*/
int wolfSSL_SHA3_512_Update(WOLFSSL_SHA3_512_CTX* sha3, const void* input,
unsigned long sz)
{
WOLFSSL_ENTER("SHA3_512_Update");
/* Update wolfCrypt SHA3-512 object with data. */
return wc_Sha3_512_Update((wc_Sha3*)sha3, (const byte*)input, (word32)sz)
== 0;
}
/* Finalize SHA3-512 hash and return output.
*
* @param [out] output Hash output.
* Must be able to hold SHA3_512_DIGEST_SIZE bytes.
* @param [in, out] sha3 SHA3-512 context object.
* @return 1 on success.
* @return 0 when sha3 or output is NULL.
*/
int wolfSSL_SHA3_512_Final(byte* output, WOLFSSL_SHA3_512_CTX* sha3)
{
int ret;
WOLFSSL_ENTER("SHA3_512_Final");
/* Finalize wolfCrypt SHA3-512 hash into output. */
ret = (wc_Sha3_512_Final((wc_Sha3*)sha3, output) == 0);
/* Free resources here, as OpenSSL API doesn't include SHA3_512_Free(). */
wc_Sha3_512_Free((wc_Sha3*)sha3);
return ret;
}
#endif /* WOLFSSL_NOSHA3_512 */
#endif /* WOLFSSL_SHA3 */
#endif /* OPENSSL_EXTRA || HAVE_CURL */
#if defined(OPENSSL_EXTRA) || defined(HAVE_LIGHTY) || \
defined(WOLFSSL_MYSQL_COMPATIBLE) || defined(HAVE_STUNNEL) || \
defined(WOLFSSL_NGINX) || defined(HAVE_POCO_LIB) || \
defined(WOLFSSL_HAPROXY)
#ifndef NO_SHA
/* One shot SHA1 hash of data.
*
* When hash is null, a static buffer of SHA_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to hash.
* @param [in] len Size of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold SHA_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_SHA1(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static byte dgst[WC_SHA_DIGEST_SIZE];
#ifdef WOLFSSL_SMALL_STACK
wc_Sha* sha;
#else
wc_Sha sha[1];
#endif
int ret = 0;
WOLFSSL_ENTER("wolfSSL_SHA1");
/* Use static buffer if none passed in. */
if (hash == NULL) {
WOLFSSL_MSG("STATIC BUFFER BEING USED. wolfSSL_SHA1 IS NOT "
"THREAD SAFE WHEN hash == NULL");
hash = dgst;
}
#ifdef WOLFSSL_SMALL_STACK
/* Allocate dynamic memory for a wolfSSL SHA object. */
sha = (wc_Sha*)XMALLOC(sizeof(wc_Sha), NULL, DYNAMIC_TYPE_DIGEST);
if (sha == NULL) {
ret = MEMORY_E;
}
#endif
if (ret == 0) {
/* Initialize wolfCrypt SHA object. */
ret = wc_InitSha_ex(sha, NULL, INVALID_DEVID);
if (ret != 0) {
WOLFSSL_MSG("SHA1 Init failed");
hash = NULL;
}
}
if (ret == 0) {
/* Update wolfCrypt SHA object with data. */
ret = wc_ShaUpdate(sha, (const byte*)data, (word32)len);
if (ret != 0) {
WOLFSSL_MSG("SHA1 Update failed");
hash = NULL;
}
if (ret == 0) {
/* Finalize wolfCrypt SHA hash into hash. */
ret = wc_ShaFinal(sha, hash);
if (ret != 0) {
WOLFSSL_MSG("SHA1 Final failed");
hash = NULL;
}
}
/* Dispose of dynamic memory associated with SHA object. */
wc_ShaFree(sha);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL SHA object. */
XFREE(sha, NULL, DYNAMIC_TYPE_DIGEST);
#endif
return hash;
}
#endif /* ! NO_SHA */
#ifdef WOLFSSL_SHA224
/* One shot SHA-224 hash of data.
*
* When hash is null, a static buffer of SHA224_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to hash.
* @param [in] len Size of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold SHA224_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_SHA224(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static byte dgst[WC_SHA224_DIGEST_SIZE];
#ifdef WOLFSSL_SMALL_STACK
wc_Sha224* sha224;
#else
wc_Sha224 sha224[1];
#endif
int ret = 0;
WOLFSSL_ENTER("wolfSSL_SHA224");
/* Use static buffer if none passed in. */
if (hash == NULL) {
WOLFSSL_MSG("STATIC BUFFER BEING USED. wolfSSL_SHA224 IS NOT "
"THREAD SAFE WHEN hash == NULL");
hash = dgst;
}
#ifdef WOLFSSL_SMALL_STACK
/* Allocate dynamic memory for a wolfSSL SHA-224 object. */
sha224 = (wc_Sha224*)XMALLOC(sizeof(wc_Sha224), NULL, DYNAMIC_TYPE_DIGEST);
if (sha224 == NULL) {
ret = MEMORY_E;
}
#endif
if (ret == 0) {
/* Initialize wolfCrypt SHA224 object. */
ret = wc_InitSha224_ex(sha224, NULL, INVALID_DEVID);
if (ret != 0) {
WOLFSSL_MSG("SHA224 Init failed");
hash = NULL;
}
}
if (ret == 0) {
/* Update wolfCrypt SHA-224 object with data. */
ret = wc_Sha224Update(sha224, (const byte*)data, (word32)len);
if (ret != 0) {
WOLFSSL_MSG("SHA224 Update failed");
hash = NULL;
}
if (ret == 0) {
/* Finalize wolfCrypt SHA-224 hash into hash. */
ret = wc_Sha224Final(sha224, hash);
if (ret != 0) {
WOLFSSL_MSG("SHA224 Final failed");
hash = NULL;
}
}
/* Dispose of dynamic memory associated with SHA-224 object. */
wc_Sha224Free(sha224);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL SHA-224 object. */
XFREE(sha224, NULL, DYNAMIC_TYPE_DIGEST);
#endif
return hash;
}
#endif
#ifndef NO_SHA256
/* One shot SHA-256 hash of data.
*
* When hash is null, a static buffer of SHA256_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to hash.
* @param [in] len Size of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold SHA256_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_SHA256(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static byte dgst[WC_SHA256_DIGEST_SIZE];
#ifdef WOLFSSL_SMALL_STACK
wc_Sha256* sha256;
#else
wc_Sha256 sha256[1];
#endif
int ret = 0;
WOLFSSL_ENTER("wolfSSL_SHA256");
/* Use static buffer if none passed in. */
if (hash == NULL) {
WOLFSSL_MSG("STATIC BUFFER BEING USED. wolfSSL_SHA256 IS NOT "
"THREAD SAFE WHEN hash == NULL");
hash = dgst;
}
#ifdef WOLFSSL_SMALL_STACK
/* Allocate dynamic memory for a wolfSSL SHA-256 object. */
sha256 = (wc_Sha256*)XMALLOC(sizeof(wc_Sha256), NULL, DYNAMIC_TYPE_DIGEST);
if (sha256 == NULL) {
ret = MEMORY_E;
}
#endif
if (ret == 0) {
/* Initialize wolfCrypt SHA256 object. */
ret = wc_InitSha256_ex(sha256, NULL, INVALID_DEVID);
if (ret != 0) {
WOLFSSL_MSG("SHA256 Init failed");
hash = NULL;
}
}
if (ret == 0) {
/* Update wolfCrypt SHA-256 object with data. */
ret = wc_Sha256Update(sha256, (const byte*)data, (word32)len);
if (ret != 0) {
WOLFSSL_MSG("SHA256 Update failed");
hash = NULL;
}
if (ret == 0) {
/* Finalize wolfCrypt SHA-256 hash into hash. */
ret = wc_Sha256Final(sha256, hash);
if (ret != 0) {
WOLFSSL_MSG("SHA256 Final failed");
hash = NULL;
}
}
/* Dispose of dynamic memory associated with SHA-256 object. */
wc_Sha256Free(sha256);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL SHA object. */
XFREE(sha256, NULL, DYNAMIC_TYPE_DIGEST);
#endif
return hash;
}
#endif /* ! NO_SHA256 */
#ifdef WOLFSSL_SHA384
/* One shot SHA-384 hash of data.
*
* When hash is null, a static buffer of SHA384_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to hash.
* @param [in] len Size of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold SHA384_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_SHA384(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static byte dgst[WC_SHA384_DIGEST_SIZE];
#ifdef WOLFSSL_SMALL_STACK
wc_Sha384* sha384;
#else
wc_Sha384 sha384[1];
#endif
int ret = 0;
WOLFSSL_ENTER("wolfSSL_SHA384");
/* Use static buffer if none passed in. */
if (hash == NULL) {
WOLFSSL_MSG("STATIC BUFFER BEING USED. wolfSSL_SHA384 IS NOT "
"THREAD SAFE WHEN hash == NULL");
hash = dgst;
}
#ifdef WOLFSSL_SMALL_STACK
/* Allocate dynamic memory for a wolfSSL SHA-384 object. */
sha384 = (wc_Sha384*)XMALLOC(sizeof(wc_Sha384), NULL, DYNAMIC_TYPE_DIGEST);
if (sha384 == NULL) {
ret = MEMORY_E;
}
#endif
if (ret == 0) {
/* Initialize wolfCrypt SHA384 object. */
ret = wc_InitSha384_ex(sha384, NULL, INVALID_DEVID);
if (ret != 0) {
WOLFSSL_MSG("SHA384 Init failed");
hash = NULL;
}
}
if (ret == 0) {
/* Update wolfCrypt SHA-384 object with data. */
ret = wc_Sha384Update(sha384, (const byte*)data, (word32)len);
if (ret != 0) {
WOLFSSL_MSG("SHA384 Update failed");
hash = NULL;
}
if (ret == 0) {
/* Finalize wolfCrypt SHA-384 hash into hash. */
ret = wc_Sha384Final(sha384, hash);
if (ret != 0) {
WOLFSSL_MSG("SHA384 Final failed");
hash = NULL;
}
}
/* Dispose of dynamic memory associated with SHA-384 object. */
wc_Sha384Free(sha384);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL SHA-384 object. */
XFREE(sha384, NULL, DYNAMIC_TYPE_DIGEST);
#endif
return hash;
}
#endif /* WOLFSSL_SHA384 */
#if defined(WOLFSSL_SHA512)
/* One shot SHA-512 hash of data.
*
* When hash is null, a static buffer of SHA512_DIGEST_SIZE is used.
* When the static buffer is used this function is not thread safe.
*
* @param [in] data Data to hash.
* @param [in] len Size of data in bytes.
* @param [out] hash Buffer to hold digest. May be NULL.
* Must be able to hold SHA512_DIGEST_SIZE bytes.
* @return Buffer holding hash on success.
* @return NULL when hashing fails.
*/
unsigned char* wolfSSL_SHA512(const unsigned char* data, size_t len,
unsigned char* hash)
{
/* Buffer to use when hash is NULL. */
static byte dgst[WC_SHA512_DIGEST_SIZE];
#ifdef WOLFSSL_SMALL_STACK
wc_Sha512* sha512;
#else
wc_Sha512 sha512[1];
#endif
int ret = 0;
WOLFSSL_ENTER("wolfSSL_SHA512");
/* Use static buffer if none passed in. */
if (hash == NULL) {
WOLFSSL_MSG("STATIC BUFFER BEING USED. wolfSSL_SHA512 IS NOT "
"THREAD SAFE WHEN hash == NULL");
hash = dgst;
}
#ifdef WOLFSSL_SMALL_STACK
/* Allocate dynamic memory for a wolfSSL SHA-512 object. */
sha512 = (wc_Sha512*)XMALLOC(sizeof(wc_Sha512), NULL, DYNAMIC_TYPE_DIGEST);
if (sha512 == NULL) {
ret = MEMORY_E;
}
#endif
if (ret == 0) {
/* Initialize wolfCrypt SHA512 object. */
ret = wc_InitSha512_ex(sha512, NULL, INVALID_DEVID);
if (ret != 0) {
WOLFSSL_MSG("SHA512 Init failed");
hash = NULL;
}
}
if (ret == 0) {
/* Update wolfCrypt SHA-512 object with data. */
ret = wc_Sha512Update(sha512, (const byte*)data, (word32)len);
if (ret != 0) {
WOLFSSL_MSG("SHA512 Update failed");
hash = NULL;
}
if (ret == 0) {
/* Finalize wolfCrypt SHA-512 hash into hash. */
ret = wc_Sha512Final(sha512, hash);
if (ret != 0) {
WOLFSSL_MSG("SHA512 Final failed");
hash = NULL;
}
}
/* Dispose of dynamic memory associated with SHA-512 object. */
wc_Sha512Free(sha512);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL SHA-512 object. */
XFREE(sha512, NULL, DYNAMIC_TYPE_DIGEST);
#endif
return hash;
}
#endif /* WOLFSSL_SHA512 */
#endif /* OPENSSL_EXTRA || HAVE_LIGHTY || WOLFSSL_MYSQL_COMPATIBLE ||
* HAVE_STUNNEL || WOLFSSL_NGINX || HAVE_POCO_LIB || WOLFSSL_HAPROXY */
/*******************************************************************************
* END OF Digest APIs
******************************************************************************/
/*******************************************************************************
* START OF HMAC API
******************************************************************************/
/* _Internal Hmac object initialization. */
#define _HMAC_Init _InitHmac
#if defined(OPENSSL_EXTRA) && !defined(WOLFCRYPT_ONLY)
/*
* Helper Functions
*/
/* Copy a wolfSSL HMAC object.
*
* Requires that hash structures have no dynamic parts to them.
*
* @param [out] dst Copy into this object.
* @param [in] src Copy from this object.
* @return 1 on success.
* @return 0 on failure.
*/
int wolfSSL_HmacCopy(Hmac* dst, Hmac* src)
{
void* heap;
int ret = 1;
#ifndef HAVE_FIPS
heap = src->heap;
#else
heap = NULL;
#endif
/* Initialize the destination object to reset state. */
if (wc_HmacInit(dst, heap, 0) != 0) {
ret = 0;
}
if (ret == 1) {
int rc;
/* Copy the digest object based on the MAC type. */
switch (src->macType) {
#ifndef NO_MD5
case WC_MD5:
rc = wc_Md5Copy(&src->hash.md5, &dst->hash.md5);
break;
#endif /* !NO_MD5 */
#ifndef NO_SHA
case WC_SHA:
rc = wc_ShaCopy(&src->hash.sha, &dst->hash.sha);
break;
#endif /* !NO_SHA */
#ifdef WOLFSSL_SHA224
case WC_SHA224:
rc = wc_Sha224Copy(&src->hash.sha224, &dst->hash.sha224);
break;
#endif /* WOLFSSL_SHA224 */
#ifndef NO_SHA256
case WC_SHA256:
rc = wc_Sha256Copy(&src->hash.sha256, &dst->hash.sha256);
break;
#endif /* !NO_SHA256 */
#ifdef WOLFSSL_SHA384
case WC_SHA384:
rc = wc_Sha384Copy(&src->hash.sha384, &dst->hash.sha384);
break;
#endif /* WOLFSSL_SHA384 */
#ifdef WOLFSSL_SHA512
case WC_SHA512:
rc = wc_Sha512Copy(&src->hash.sha512, &dst->hash.sha512);
break;
#endif /* WOLFSSL_SHA512 */
#ifdef WOLFSSL_SHA3
#ifndef WOLFSSL_NOSHA3_224
case WC_SHA3_224:
rc = wc_Sha3_224_Copy(&src->hash.sha3, &dst->hash.sha3);
break;
#endif /* WOLFSSL_NO_SHA3_224 */
#ifndef WOLFSSL_NOSHA3_256
case WC_SHA3_256:
rc = wc_Sha3_256_Copy(&src->hash.sha3, &dst->hash.sha3);
break;
#endif /* WOLFSSL_NO_SHA3_256 */
#ifndef WOLFSSL_NOSHA3_384
case WC_SHA3_384:
rc = wc_Sha3_384_Copy(&src->hash.sha3, &dst->hash.sha3);
break;
#endif /* WOLFSSL_NO_SHA3_384 */
#ifndef WOLFSSL_NOSHA3_512
case WC_SHA3_512:
rc = wc_Sha3_512_Copy(&src->hash.sha3, &dst->hash.sha3);
break;
#endif /* WOLFSSL_NO_SHA3_512 */
#endif /* WOLFSSL_SHA3 */
default:
/* Digest algorithm not supported. */
rc = BAD_FUNC_ARG;
}
/* Check result of digest object copy. */
if (rc != 0) {
ret = 0;
}
}
if (ret == 1) {
/* Copy the pads which are derived from the key. */
XMEMCPY((byte*)dst->ipad, (byte*)src->ipad, WC_HMAC_BLOCK_SIZE);
XMEMCPY((byte*)dst->opad, (byte*)src->opad, WC_HMAC_BLOCK_SIZE);
/* Copy the inner hash that is the current state. */
XMEMCPY((byte*)dst->innerHash, (byte*)src->innerHash,
WC_MAX_DIGEST_SIZE);
/* Copy other fields. */
#ifndef HAVE_FIPS
dst->heap = heap;
#endif
dst->macType = src->macType;
dst->innerHashKeyed = src->innerHashKeyed;
#ifdef WOLFSSL_ASYNC_CRYPT
XMEMCPY(&dst->asyncDev, &src->asyncDev, sizeof(WC_ASYNC_DEV));
dst->keyLen = src->keyLen;
#ifdef HAVE_CAVIUM
/* Copy the dynamic data. */
dst->data = (byte*)XMALLOC(src->dataLen, dst->heap, DYNAMIC_TYPE_HMAC);
if (dst->data == NULL) {
ret = BUFFER_E;
}
else {
XMEMCPY(dst->data, src->data, src->dataLen);
dst->dataLen = src->dataLen;
}
#endif /* HAVE_CAVIUM */
#endif /* WOLFSSL_ASYNC_CRYPT */
}
return ret;
}
/*
* wolfSSL_HMAC_CTX APIs.
*/
/* Allocate a new HMAC context object and initialize.
*
* @return A cleared HMAC context object on success.
* @return NULL on failure.
*/
WOLFSSL_HMAC_CTX* wolfSSL_HMAC_CTX_new(void)
{
WOLFSSL_HMAC_CTX* hmac_ctx;
/* Allocate dynamic memory for HMAC context object. */
hmac_ctx = (WOLFSSL_HMAC_CTX*)XMALLOC(sizeof(WOLFSSL_HMAC_CTX), NULL,
DYNAMIC_TYPE_OPENSSL);
if (hmac_ctx != NULL) {
/* Initialize HMAC context object. */
wolfSSL_HMAC_CTX_Init(hmac_ctx);
}
return hmac_ctx;
}
/* Initialize a HMAC context object.
*
* Not an OpenSSL compatibility API.
*
* @param [in, out] ctx HMAC context object.
* @return 1 indicating success.
*/
int wolfSSL_HMAC_CTX_Init(WOLFSSL_HMAC_CTX* ctx)
{
WOLFSSL_MSG("wolfSSL_HMAC_CTX_Init");
if (ctx != NULL) {
/* Clear all fields. */
XMEMSET(ctx, 0, sizeof(WOLFSSL_HMAC_CTX));
/* type field is 0 == WC_HASH_TYPE_NONE. */
/* TODO: for FIPS and selftest 0 == WC_HASH_TYPE_MD5 instead. */
}
return 1;
}
/* Deep copy of information from one HMAC context object to another.
*
* @param [out] dst Copy into this object.
* @param [in] src Copy from this object.
* @return 1 on success.
* @return 0 on failure.
*/
int wolfSSL_HMAC_CTX_copy(WOLFSSL_HMAC_CTX* dst, WOLFSSL_HMAC_CTX* src)
{
int ret = 1;
WOLFSSL_ENTER("wolfSSL_HMAC_CTX_copy");
/* Validate parameters. */
if ((dst == NULL) || (src == NULL)) {
ret = 0;
}
if (ret == 1) {
/* Copy hash type. */
dst->type = src->type;
/* Move pads derived from key into save space. */
XMEMCPY((byte *)&dst->save_ipad, (byte *)&src->hmac.ipad,
WC_HMAC_BLOCK_SIZE);
XMEMCPY((byte *)&dst->save_opad, (byte *)&src->hmac.opad,
WC_HMAC_BLOCK_SIZE);
/* Copy the wolfSSL Hmac ocbject. */
ret = wolfSSL_HmacCopy(&dst->hmac, &src->hmac);
}
return ret;
}
/* Cleanup internal state of HMAC context object.
*
* Not an OpenSSL compatibility API.
*
* @param [in, out] ctx HMAC context object.
*/
void wolfSSL_HMAC_CTX_cleanup(WOLFSSL_HMAC_CTX* ctx)
{
if (ctx != NULL) {
/* Cleanup HMAC operation data. */
wolfSSL_HMAC_cleanup(ctx);
}
}
/* Free HMAC context object.
*
* ctx is deallocated and can no longer be used after this call.
*
* @param [in] ctx HMAC context object.
*/
void wolfSSL_HMAC_CTX_free(WOLFSSL_HMAC_CTX* ctx)
{
if (ctx != NULL) {
/* Cleanup HMAC context object, including freeing dynamic data. */
wolfSSL_HMAC_CTX_cleanup(ctx);
/* Dispose of the memory for the HMAC context object. */
XFREE(ctx, NULL, DYNAMIC_TYPE_OPENSSL);
}
}
/* Get the EVP digest of the HMAC context.
*
* @param [in] ctx HMAC context object.
* @return EVP digest object.
* @return NULL when ctx is NULL or EVP digest not set.
*/
const WOLFSSL_EVP_MD* wolfSSL_HMAC_CTX_get_md(const WOLFSSL_HMAC_CTX* ctx)
{
const WOLFSSL_EVP_MD* ret = NULL;
if (ctx != NULL) {
/* Get EVP digest based on digest type. */
ret = wolfSSL_macType2EVP_md((enum wc_HashType)ctx->type);
}
return ret;
}
/*
* wolfSSL_HMAC APIs.
*/
/* Initialize the HMAC operation.
*
* @param [in, out] ctx HMAC context object.
* @param [in] key Array of bytes representing key.
* May be NULL indicating to use the same key as
* previously.
* @param [in] keySz Number of bytes in key.
* 0+ in non-FIPS, 14+ in FIPS.
* @param [in] type EVP digest indicate digest type.
* May be NULL if initialized previously.
* @param [in] e wolfSSL engine. Ignored.
* @return 1 on success.
* @return 0 on failure.
*/
int wolfSSL_HMAC_Init_ex(WOLFSSL_HMAC_CTX* ctx, const void* key, int keySz,
const EVP_MD* type, WOLFSSL_ENGINE* e)
{
WOLFSSL_ENTER("wolfSSL_HMAC_Init_ex");
/* WOLFSSL_ENGINE not used, call wolfSSL_HMAC_Init */
(void)e;
return wolfSSL_HMAC_Init(ctx, key, keySz, type);
}
/* Initialize the HMAC operation.
*
* @param [in, out] ctx HMAC context object.
* @param [in] key Array of bytes representing key.
* May be NULL indicating to use the same key as
* previously.
* @param [in] keySz Number of bytes in key.
* 0+ in non-FIPS, 14+ in FIPS.
* @param [in] type EVP digest indicate digest type.
* May be NULL if initialized previously.
* @return 1 on success.
* @return 0 on failure.
*/
int wolfSSL_HMAC_Init(WOLFSSL_HMAC_CTX* ctx, const void* key, int keylen,
const EVP_MD* type)
{
int ret = 1;
void* heap = NULL;
int rc;
WOLFSSL_MSG("wolfSSL_HMAC_Init");
/* Validate parameters. */
if (ctx == NULL) {
WOLFSSL_MSG("no ctx on init");
ret = 0;
}
/* Digest type must have been previously set if not specified. */
if ((ret == 1) && (type == NULL) && (ctx->type == (int)WC_HASH_TYPE_NONE)) {
WOLFSSL_MSG("no hash type");
ret = 0;
}
/* wolfSSL HMAC object must have been setup with a key if not specified. */
if ((ret == 1) && (key == NULL) &&
(ctx->hmac.macType == (int)WC_HASH_TYPE_NONE)) {
WOLFSSL_MSG("wolfCrypt hash not setup");
ret = 0;
}
if (ret == 1) {
#ifndef HAVE_FIPS
heap = ctx->hmac.heap;
#endif
if (type != NULL) {
WOLFSSL_MSG("init has type");
/* Get the digest type based on EVP digest. */
if (wolfssl_evp_md_to_hash_type(type, &ctx->type) != 0) {
WOLFSSL_MSG("bad init type");
ret = 0;
}
}
}
if (ret == 1) {
/* Check if init has been called before */
int inited = (ctx->hmac.macType != WC_HASH_TYPE_NONE);
/* Free if wolfSSL HMAC object when initialized. */
if (inited) {
wc_HmacFree(&ctx->hmac);
}
/* Initialize wolfSSL HMAC object for new HMAC operation. */
rc = wc_HmacInit(&ctx->hmac, NULL, INVALID_DEVID);
if (rc != 0) {
ret = 0;
}
}
if ((ret == 1) && (key != NULL)) {
/* Set the key into wolfSSL HMAC object. */
rc = wc_HmacSetKey(&ctx->hmac, ctx->type, (const byte*)key,
(word32)keylen);
if (rc != 0) {
/* in FIPS mode a key < 14 characters will fail here */
WOLFSSL_MSG("hmac set key error");
WOLFSSL_ERROR(rc);
wc_HmacFree(&ctx->hmac);
ret = 0;
}
if (ret == 1) {
/* Save the pads which are derived from the key. Used to re-init. */
XMEMCPY((byte *)&ctx->save_ipad, (byte *)&ctx->hmac.ipad,
WC_HMAC_BLOCK_SIZE);
XMEMCPY((byte *)&ctx->save_opad, (byte *)&ctx->hmac.opad,
WC_HMAC_BLOCK_SIZE);
}
}
else if (ret == 1) {
WOLFSSL_MSG("recover hmac");
/* Set state of wolfSSL HMAC object. */
ctx->hmac.macType = (byte)ctx->type;
ctx->hmac.innerHashKeyed = 0;
/* Restore key by copying in saved pads. */
XMEMCPY((byte *)&ctx->hmac.ipad, (byte *)&ctx->save_ipad,
WC_HMAC_BLOCK_SIZE);
XMEMCPY((byte *)&ctx->hmac.opad, (byte *)&ctx->save_opad,
WC_HMAC_BLOCK_SIZE);
/* Initialize the wolfSSL HMAC object. */
rc = _HMAC_Init(&ctx->hmac, ctx->hmac.macType, heap);
if (rc != 0) {
WOLFSSL_MSG("hmac init error");
WOLFSSL_ERROR(rc);
ret = 0;
}
}
return ret;
}
/* Update the HMAC operation with more data.
*
* TODO: 'len' should be a signed type.
*
* @param [in, out] ctx HMAC context object.
* @param [in] data Array of byted to MAC. May be NULL.
* @param [in] len Number of bytes to MAC. May be 0.
* @return 1 on success.
* @return 0 when ctx is NULL or HMAC update fails.
*/
int wolfSSL_HMAC_Update(WOLFSSL_HMAC_CTX* ctx, const unsigned char* data,
int len)
{
int ret = 1;
WOLFSSL_MSG("wolfSSL_HMAC_Update");
/* Validate parameters. */
if (ctx == NULL) {
WOLFSSL_MSG("no ctx");
ret = 0;
}
/* Update when there is data to add. */
if ((ret == 1) && (data != NULL) && (len > 0)) {
int rc;
WOLFSSL_MSG("updating hmac");
/* Update wolfSSL HMAC object. */
rc = wc_HmacUpdate(&ctx->hmac, data, (word32)len);
if (rc != 0){
WOLFSSL_MSG("hmac update error");
ret = 0;
}
}
return ret;
}
/* Finalize HMAC operation.
*
* @param [in, out] ctx HMAC context object.
* @param [out] hash Buffer to hold HMAC result.
* Must be able to hold bytes equivalent to digest size.
* @param [out] len Length of HMAC result. May be NULL.
* @return 1 on success.
* @return 0 when ctx or hash is NULL.
* @return 0 when HMAC finalization fails.
*/
int wolfSSL_HMAC_Final(WOLFSSL_HMAC_CTX* ctx, unsigned char* hash,
unsigned int* len)
{
int ret = 1;
int rc;
WOLFSSL_MSG("wolfSSL_HMAC_Final");
/* Validate parameters. */
if ((ctx == NULL) || (hash == NULL)) {
WOLFSSL_MSG("invalid parameter");
ret = 0;
}
if (ret == 1) {
WOLFSSL_MSG("final hmac");
/* Finalize wolfSSL HMAC object. */
rc = wc_HmacFinal(&ctx->hmac, hash);
if (rc != 0){
WOLFSSL_MSG("final hmac error");
ret = 0;
}
}
if ((ret == 1) && (len != NULL)) {
WOLFSSL_MSG("setting output len");
/* Get the length of the output based on digest type. */
*len = wolfssl_mac_len((unsigned char)ctx->type);
}
return ret;
}
/* Cleanup the HMAC operation.
*
* Not an OpenSSL compatibility API.
*
* @param [in, out] ctx HMAC context object.
* @return 1 indicating success.
*/
int wolfSSL_HMAC_cleanup(WOLFSSL_HMAC_CTX* ctx)
{
WOLFSSL_MSG("wolfSSL_HMAC_cleanup");
if (ctx != NULL) {
/* Free the dynamic data in the wolfSSL HMAC object. */
wc_HmacFree(&ctx->hmac);
}
return 1;
}
/* HMAC data using the specified EVP digest.
*
* @param [in] evp_md EVP digest.
* @param [in] key Array of bytes representing key.
* @param [in] keySz Number of bytes in key.
* 0+ in non-FIPS, 14+ in FIPS.
* @param [in] data Data to MAC.
* @param [in] len Length in bytes of data to MAC.
* @param [out] md HMAC output.
* @param [out] md_len Length of HMAC output in bytes. May be NULL.
* @return Buffer holding HMAC output.
* @return NULL on failure.
*/
unsigned char* wolfSSL_HMAC(const WOLFSSL_EVP_MD* evp_md, const void* key,
int key_len, const unsigned char* data, int len, unsigned char* md,
unsigned int* md_len)
{
unsigned char* ret = NULL;
int rc = 0;
int type = 0;
int hmacLen = 0;
#ifdef WOLFSSL_SMALL_STACK
Hmac* hmac = NULL;
#else
Hmac hmac[1];
#endif
void* heap = NULL;
/* Validate parameters. */
if ((evp_md == NULL) || (key == NULL) || (md == NULL)) {
rc = BAD_FUNC_ARG;
}
if (rc == 0) {
/* Get the hash type corresponding to the EVP digest. */
rc = wolfssl_evp_md_to_hash_type(evp_md, &type);
}
#ifdef WOLFSSL_SMALL_STACK
if (rc == 0) {
/* Allocate dynamic memory for a wolfSSL HMAC object. */
hmac = (Hmac*)XMALLOC(sizeof(Hmac), heap, DYNAMIC_TYPE_HMAC);
if (hmac == NULL) {
rc = MEMORY_E;
}
}
#endif
if (rc == 0) {
/* Get the HMAC output length. */
hmacLen = wolfssl_mac_len((unsigned char)type);
/* 0 indicates the digest is not supported. */
if (hmacLen == 0) {
rc = BAD_FUNC_ARG;
}
}
/* Initialize the wolfSSL HMAC object. */
if ((rc == 0) && (wc_HmacInit(hmac, heap, INVALID_DEVID) == 0)) {
/* Set the key into the wolfSSL HMAC object. */
rc = wc_HmacSetKey(hmac, type, (const byte*)key, key_len);
if (rc == 0) {
/* Update the wolfSSL HMAC object with data. */
rc = wc_HmacUpdate(hmac, data, len);
}
/* Finalize the wolfSSL HMAC object. */
if ((rc == 0) && (wc_HmacFinal(hmac, md) == 0)) {
/* Return the length of the HMAC output if required. */
if (md_len != NULL) {
*md_len = hmacLen;
}
/* Set the buffer to return. */
ret = md;
}
/* Dispose of dynamic memory associated with the wolfSSL HMAC object. */
wc_HmacFree(hmac);
}
#ifdef WOLFSSL_SMALL_STACK
/* Free dynamic memory of a wolfSSL HMAC object. */
XFREE(hmac, heap, DYNAMIC_TYPE_HMAC);
#endif
return ret;
}
/* Get the HMAC output size.
*
* @param [in] ctx HMAC context object.
* @return Size of HMAC output in bytes.
* @return 0 when ctx is NULL or no digest algorithm set.
*/
size_t wolfSSL_HMAC_size(const WOLFSSL_HMAC_CTX* ctx)
{
size_t ret = 0;
if (ctx != NULL) {
/* Look up digest size with wolfSSL. */
ret = (size_t)wc_HashGetDigestSize((enum wc_HashType)ctx->hmac.macType);
}
return ret;
}
#endif /* OPENSSL_EXTRA */
/*******************************************************************************
* END OF HMAC API
******************************************************************************/
/*******************************************************************************
* START OF CMAC API
******************************************************************************/
#if defined(OPENSSL_EXTRA) && !defined(WOLFCRYPT_ONLY)
#if defined(WOLFSSL_CMAC) && defined(OPENSSL_EXTRA) && \
defined(WOLFSSL_AES_DIRECT)
/* Allocate a new CMAC context object.
*
* TODO: make fields static.
*
* @return A CMAC context object on success.
* @return NULL on failure.
*/
WOLFSSL_CMAC_CTX* wolfSSL_CMAC_CTX_new(void)
{
WOLFSSL_CMAC_CTX* ctx = NULL;
/* Allocate memory for CMAC context object. */
ctx = (WOLFSSL_CMAC_CTX*)XMALLOC(sizeof(WOLFSSL_CMAC_CTX), NULL,
DYNAMIC_TYPE_OPENSSL);
if (ctx != NULL) {
/* Memory for wolfSSL CMAC object is allocated in
* wolfSSL_CMAC_Init().
*/
ctx->internal = NULL;
/* Allocate memory for EVP cipher context object. */
ctx->cctx = wolfSSL_EVP_CIPHER_CTX_new();
if (ctx->cctx == NULL) {
XFREE(ctx->internal, NULL, DYNAMIC_TYPE_CMAC);
XFREE(ctx, NULL, DYNAMIC_TYPE_OPENSSL);
ctx = NULL;
}
}
return ctx;
}
/* Free CMAC context object and dynamically allocated fields.
*
* ctx is deallocated and can no longer be used after this call.
*
* @param [in] ctx CMAC context object.
*/
void wolfSSL_CMAC_CTX_free(WOLFSSL_CMAC_CTX *ctx)
{
if (ctx != NULL) {
/* Deallocate dynamically allocated fields. */
if (ctx->internal != NULL) {
#if (!defined(HAVE_FIPS) || FIPS_VERSION_GE(5, 3)) && !defined(HAVE_SELFTEST)
wc_CmacFree((Cmac*)ctx->internal);
#endif
XFREE(ctx->internal, NULL, DYNAMIC_TYPE_CMAC);
}
if (ctx->cctx != NULL) {
wolfSSL_EVP_CIPHER_CTX_cleanup(ctx->cctx);
wolfSSL_EVP_CIPHER_CTX_free(ctx->cctx);
}
/* Deallocate CMAC context object. */
XFREE(ctx, NULL, DYNAMIC_TYPE_OPENSSL);
}
}
/* Return a reference to the EVP cipher context.
*
* @param [in] ctx CMAC context object.
* @return EVP cipher context.
* @return NULL when ctx is NULL.
*/
WOLFSSL_EVP_CIPHER_CTX* wolfSSL_CMAC_CTX_get0_cipher_ctx(WOLFSSL_CMAC_CTX* ctx)
{
WOLFSSL_EVP_CIPHER_CTX* cctx = NULL;
if (ctx != NULL) {
/* Return EVP cipher context object. */
cctx = ctx->cctx;
}
return cctx;
}
/* Initialize the CMAC operation.
*
* @param [in, out] cmac CMAC context object.
* @param [in] key Symmetric key to use.
* @param [in] keySz Length of key in bytes.
* @param [in] cipher EVP cipher object describing encryption algorithm
* to use.
* @param [in] engine wolfSSL Engine. Not used.
* @return 1 on success.
* @return 0 when ctx or cipher is NULL.
* @return 0 when cipher is not an AES-CBC algorithm.
* @return 0 when key length does not match cipher.
*/
int wolfSSL_CMAC_Init(WOLFSSL_CMAC_CTX* ctx, const void *key, size_t keySz,
const WOLFSSL_EVP_CIPHER* cipher, WOLFSSL_ENGINE* engine)
{
int ret = 1;
(void)engine;
WOLFSSL_ENTER("wolfSSL_CMAC_Init");
/* Validate parameters. */
if ((ctx == NULL) || (cipher == NULL)) {
ret = 0;
}
/* Only AES-CBC ciphers are supported. */
if ((ret == 1) && (cipher != EVP_AES_128_CBC) &&
(cipher != EVP_AES_192_CBC) && (cipher != EVP_AES_256_CBC)) {
WOLFSSL_MSG("wolfSSL_CMAC_Init: requested cipher is unsupported");
ret = 0;
}
/* Key length must match cipher. */
if ((ret == 1) && ((int)keySz != wolfSSL_EVP_Cipher_key_length(cipher))) {
WOLFSSL_MSG("wolfSSL_CMAC_Init: "
"supplied key size doesn't match requested cipher");
ret = 0;
}
if ((ret == 1) && (ctx->internal == NULL)) {
/* Allocate memory for wolfSSL CMAC object. */
ctx->internal = (Cmac*)XMALLOC(sizeof(Cmac), NULL, DYNAMIC_TYPE_CMAC);
if (ctx->internal == NULL)
ret = 0;
}
/* Initialize the wolfCrypt CMAC object. */
if ((ret == 1) && (wc_InitCmac((Cmac*)ctx->internal, (const byte*)key,
(word32)keySz, WC_CMAC_AES, NULL) != 0)) {
WOLFSSL_MSG("wolfSSL_CMAC_Init: wc_InitCmac() failed");
XFREE(ctx->internal, NULL, DYNAMIC_TYPE_CMAC);
ctx->internal = NULL;
ret = 0;
}
if (ret == 1) {
/* Initialize the EVP cipher context object for encryption. */
ret = wolfSSL_EVP_CipherInit(ctx->cctx, cipher, (const byte*)key, NULL,
1);
if (ret != WOLFSSL_SUCCESS)
WOLFSSL_MSG("wolfSSL_CMAC_Init: wolfSSL_EVP_CipherInit() failed");
}
WOLFSSL_LEAVE("wolfSSL_CMAC_Init", ret);
return ret;
}
/* Update the CMAC operation with data.
*
* @param [in, out] ctx CMAC context object.
* @param [in] data Data to MAC as a byte array.
* @param [in] len Length of data in bytes.
* @return 1 on success.
* @return 0 when ctx is NULL.
*/
int wolfSSL_CMAC_Update(WOLFSSL_CMAC_CTX* ctx, const void* data, size_t len)
{
int ret = 1;
WOLFSSL_ENTER("wolfSSL_CMAC_Update");
/* Validate parameters. */
if (ctx == NULL) {
ret = 0;
}
/* Update the wolfCrypto CMAC object with data. */
if ((ret == 1) && (data != NULL) && (wc_CmacUpdate((Cmac*)ctx->internal,
(const byte*)data, (word32)len) != 0)) {
ret = 0;
}
WOLFSSL_LEAVE("wolfSSL_CMAC_Update", ret);
return ret;
}
/* Finalize the CMAC operation into output buffer.
*
* @param [in, out] ctx CMAC context object.
* @param [out] out Buffer to place CMAC result into.
* Must be able to hold AES_BLOCK_SIZE bytes.
* @param [out] len Length of CMAC result. May be NULL.
* @return 1 on success.
* @return 0 when ctx is NULL.
*/
int wolfSSL_CMAC_Final(WOLFSSL_CMAC_CTX* ctx, unsigned char* out, size_t* len)
{
int ret = 1;
int blockSize;
word32 len32;
WOLFSSL_ENTER("wolfSSL_CMAC_Final");
/* Validate parameters. */
if (ctx == NULL) {
ret = 0;
}
if (ret == 1) {
/* Get the expected output size. */
blockSize = EVP_CIPHER_CTX_block_size(ctx->cctx);
/* Check value is valid. */
if (blockSize <= 0) {
ret = 0;
}
else {
/* wolfCrypt CMAC expects buffer size. */
len32 = (word32)blockSize;
/* Return size if required. */
if (len != NULL) {
*len = blockSize;
}
}
}
if ((ret == 1) && (out != NULL)) {
/* Calculate MAC result with wolfCrypt CMAC object. */
if (wc_CmacFinal((Cmac*)ctx->internal, out, &len32) != 0) {
ret = 0;
}
/* TODO: Is this necessary? Length should not change. */
/* Return actual size if required. */
else if (len != NULL) {
*len = (size_t)len32;
}
XFREE(ctx->internal, NULL, DYNAMIC_TYPE_CMAC);
ctx->internal = NULL;
}
WOLFSSL_LEAVE("wolfSSL_CMAC_Final", ret);
return ret;
}
#endif /* WOLFSSL_CMAC && OPENSSL_EXTRA && WOLFSSL_AES_DIRECT */
#endif /* OPENSSL_EXTRA && !WOLFCRYPT_ONLY */
/*******************************************************************************
* END OF CMAC API
******************************************************************************/
/*******************************************************************************
* START OF DES API
******************************************************************************/
#ifdef OPENSSL_EXTRA
#ifndef NO_DES3
/* Set parity of the DES key.
*
* @param [in, out] key DES key.
*/
void wolfSSL_DES_set_odd_parity(WOLFSSL_DES_cblock* key)
{
int i;
WOLFSSL_ENTER("wolfSSL_DES_set_odd_parity");
for (i = 0; i < DES_KEY_SIZE; i++) {
unsigned char c = (*key)[i];
/* Set bottom bit to odd parity - XOR of each bit is to be 1.
* XOR 1 to XOR of each bit.
* When even parity, the value will be 1 and the bottom bit will be
* flipped.
* When odd parity, the value will be 0 and the bottom bit will be
* unchanged.
*/
c ^= ((c >> 0) ^ (c >> 1) ^ (c >> 2) ^ (c >> 3) ^ (c >> 4) ^ (c >> 5) ^
(c >> 6) ^ (c >> 7) ^ 0x01) & 0x01;
(*key)[i] = c;
}
}
/* Check parity of the DES key.
*
* @param [in] key DES key.
* @return 1 when odd parity on all bytes.
* @return 0 when even parity on any byte.
*/
int wolfSSL_DES_check_key_parity(WOLFSSL_DES_cblock *key)
{
int i;
/* Assume odd parity. */
unsigned char p = 1;
WOLFSSL_ENTER("wolfSSL_DES_check_key_parity");
for (i = 0; i < DES_KEY_SIZE; i++) {
unsigned char c = (*key)[i];
/* p will be 0 when parity is even (XOR of bits is 0). */
p &= (c >> 0) ^ (c >> 1) ^ (c >> 2) ^ (c >> 3) ^ (c >> 4) ^ (c >> 5) ^
(c >> 6) ^ (c >> 7);
}
/* Only care about bottom bit. */
return p & 1;
}
/* Check whether key data is the two 32-bit words.
*
* return true in fail case (1)
*
* @param [in] k1 First part of key.
* @param [in] k2 Second part of key.
* @param [in] key DES key as an array of bytes.
**/
static int wolfssl_des_check(word32 k1, word32 k2, unsigned char* key)
{
/* Compare the two 32-bit words. */
return (((word32*)key)[0] == k1) && (((word32*)key)[1] == k2);
}
/* Check key is not weak.
*
* Weak key list from Nist "Recommendation for the Triple Data Encryption
* Algorithm (TDEA) Block Cipher"
*
* @param [in] key DES key.
* @return 0 when #key is not a weak key.
* @return 1 when #key is a weak key.
*/
int wolfSSL_DES_is_weak_key(WOLFSSL_const_DES_cblock* key)
{
int ret = 0;
WOLFSSL_ENTER("wolfSSL_DES_is_weak_key");
/* Validate parameter. */
if (key == NULL) {
WOLFSSL_MSG("NULL key passed in");
ret = 1;
}
/* Check weak keys - endian doesn't matter. */
if ((ret == 0) && (wolfssl_des_check(0x01010101, 0x01010101, *key) ||
wolfssl_des_check(0xFEFEFEFE, 0xFEFEFEFE, *key) ||
wolfssl_des_check(0xE0E0E0E0, 0xF1F1F1F1, *key) ||
wolfssl_des_check(0x1F1F1F1F, 0x0E0E0E0E, *key))) {
WOLFSSL_MSG("Weak key found");
ret = 1;
}
/* Check semi-weak keys - endian doesn't matter. */
if ((ret == 0) && (wolfssl_des_check(0x011F011F, 0x010E010E, *key) ||
wolfssl_des_check(0x1F011F01, 0x0E010E01, *key) ||
wolfssl_des_check(0x01E001E0, 0x01F101F1, *key) ||
wolfssl_des_check(0xE001E001, 0xF101F101, *key) ||
wolfssl_des_check(0x01FE01FE, 0x01FE01FE, *key) ||
wolfssl_des_check(0xFE01FE01, 0xFE01FE01, *key) ||
wolfssl_des_check(0x1FE01FE0, 0x0EF10EF1, *key) ||
wolfssl_des_check(0xE01FE01F, 0xF10EF10E, *key) ||
wolfssl_des_check(0x1FFE1FFE, 0x0EFE0EFE, *key) ||
wolfssl_des_check(0xFE1FFE1F, 0xFE0EFE0E, *key) ||
wolfssl_des_check(0xE0FEE0FE, 0xF1FEF1FE, *key) ||
wolfssl_des_check(0xFEE0FEE0, 0xFEF1FEF1, *key))) {
WOLFSSL_MSG("Semi-weak key found");
ret = 1;
}
return ret;
}
/* Set key into schedule if key parity is odd and key is not weak.
*
* @param [in] key DES key data.
* @param [out] schedule DES key schedule.
* @return 0 on success.
* @return -1 when parity is not odd.
* @return -2 when key or schedule is NULL.
* @return -2 when key is weak or semi-weak.
*/
int wolfSSL_DES_set_key_checked(WOLFSSL_const_DES_cblock* key,
WOLFSSL_DES_key_schedule* schedule)
{
int ret = 0;
/* Validate parameters. */
if ((key == NULL) || (schedule == NULL)) {
WOLFSSL_MSG("Bad argument passed to wolfSSL_DES_set_key_checked");
ret = -2;
}
/* Check key parity is odd. */
if ((ret == 0) && (!wolfSSL_DES_check_key_parity(key))) {
WOLFSSL_MSG("Odd parity test fail");
ret = -1;
}
/* Check whether key is weak. */
if ((ret == 0) && wolfSSL_DES_is_weak_key(key)) {
WOLFSSL_MSG("Weak key found");
ret = -2;
}
if (ret == 0) {
/* Key data passed checks, now copy key into schedule. */
XMEMCPY(schedule, key, DES_KEY_SIZE);
}
return ret;
}
/* Set key into schedule - no checks on key data performed.
*
* @param [in] key DES key data.
* @param [out] schedule DES key schedule.
*/
void wolfSSL_DES_set_key_unchecked(WOLFSSL_const_DES_cblock* key,
WOLFSSL_DES_key_schedule* schedule)
{
/* Validate parameters. */
if ((key != NULL) && (schedule != NULL)) {
/* Copy the key data into the schedule. */
XMEMCPY(schedule, key, DES_KEY_SIZE);
}
}
/* Set key into schedule.
*
* @param [in] key DES key data.
* @param [out] schedule DES key schedule.
* @return 0 on success.
* @return -1 when parity is not odd.
* @return -2 when key or schedule is NULL.
* @return -2 when key is weak or semi-weak.
*/
int wolfSSL_DES_set_key(WOLFSSL_const_DES_cblock* key,
WOLFSSL_DES_key_schedule* schedule)
{
#ifdef WOLFSSL_CHECK_DESKEY
return wolfSSL_DES_set_key_checked(key, schedule);
#else
wolfSSL_DES_set_key_unchecked(key, schedule);
return 0;
#endif
}
/* Set the key schedule from the DES key.
*
* TODO: OpenSSL checks parity and weak keys.
*
* @param [in] key DES key data.
* @param [out] schedule DES key schedule.
* @return 0 on success.
*/
int wolfSSL_DES_key_sched(WOLFSSL_const_DES_cblock* key,
WOLFSSL_DES_key_schedule* schedule)
{
WOLFSSL_ENTER("wolfSSL_DES_key_sched");
/* Check parameters are usable. */
if ((key == NULL) || (schedule == NULL)) {
WOLFSSL_MSG("Null argument passed in");
}
else {
/* Copy the key data into the schedule. */
XMEMCPY(schedule, key, sizeof(WOLFSSL_const_DES_cblock));
}
return 0;
}
/* Encrypt with DES-CBC to create a checksum.
*
* Intended to behave similar to Kerberos mit_des_cbc_cksum.
* Returns the last 4 bytes of cipher text.
*
* TODO: Encrypt one block at a time instead of allocating a large amount.
*
* @param [in] in Data to encrypt.
* @param [out] out Last encrypted block.
* @param [in] length Length of data to encrypt.
* @param [in] sc Key schedule for encryption.
* @param [in] iv Initialization vector for CBC.
* @return Checksum of encryption.
* @return 0 on error.
*/
WOLFSSL_DES_LONG wolfSSL_DES_cbc_cksum(const unsigned char* in,
WOLFSSL_DES_cblock* out, long length, WOLFSSL_DES_key_schedule* sc,
WOLFSSL_const_DES_cblock* iv)
{
WOLFSSL_DES_LONG ret = 0;
int err = 0;
unsigned char* data = (unsigned char*)in;
unsigned char* tmp = NULL;
long dataSz = length;
WOLFSSL_ENTER("wolfSSL_DES_cbc_cksum");
/* Validate parameters. */
if ((in == NULL) || (out == NULL) || (sc == NULL) || (iv == NULL)) {
WOLFSSL_MSG("Bad argument passed in");
err = 1;
}
/* When input length is not a multiple of DES_BLOCK_SIZE pad with 0s. */
if ((!err) && (dataSz % DES_BLOCK_SIZE)) {
/* Allocate a buffer big enough to hold padded input. */
dataSz += DES_BLOCK_SIZE - (dataSz % DES_BLOCK_SIZE);
data = (unsigned char*)XMALLOC(dataSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (data == NULL) {
WOLFSSL_MSG("Issue creating temporary buffer");
err = 1;
}
else {
/* Copy input and pad with 0s. */
XMEMCPY(data, in, length);
XMEMSET(data + length, 0, dataSz - length);
}
}
if (!err) {
/* Allocate buffer to hold encrypted data. */
tmp = (unsigned char*)XMALLOC(dataSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (tmp == NULL) {
WOLFSSL_MSG("Issue creating temporary buffer");
err = 1;
}
}
if (!err) {
/* Encrypt data into temporary. */
wolfSSL_DES_cbc_encrypt(data, tmp, dataSz, sc, (WOLFSSL_DES_cblock*)iv,
DES_ENCRYPT);
/* Copy out last block. */
XMEMCPY((unsigned char*)out, tmp + (dataSz - DES_BLOCK_SIZE),
DES_BLOCK_SIZE);
/* Use the last half of the encrypted block as the checksum. */
ret = (((*((unsigned char*)out + 4) & 0xFF) << 24) |
((*((unsigned char*)out + 5) & 0xFF) << 16) |
((*((unsigned char*)out + 6) & 0xFF) << 8) |
(*((unsigned char*)out + 7) & 0xFF) );
}
/* Dispose of allocated memory. */
XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (data != in) {
XFREE(data, NULL, DYNAMIC_TYPE_TMP_BUFFER);
}
return ret;
}
/* Encrypt/decrypt data with DES-CBC.
*
* TODO: OpenSSL expects a length that is a multiple of the block size but
* we are padding the last block. This is not a padding API.
* TODO: Validate parameters?
*
* @param [in] input Data to encipher.
* @param [out] output Enciphered data.
* @param [in] length Length of data to encipher.
* @param [in] schedule Key schedule.
* @param [in] ivec IV for CBC operation.
* @param [in] enc Whether to encrypt.
*/
void wolfSSL_DES_cbc_encrypt(const unsigned char* input, unsigned char* output,
long length, WOLFSSL_DES_key_schedule* schedule, WOLFSSL_DES_cblock* ivec,
int enc)
{
#ifdef WOLFSSL_SMALL_STACK
Des* des = NULL;
#else
Des des[1];
#endif
byte lastBlock[DES_BLOCK_SIZE];
WOLFSSL_ENTER("wolfSSL_DES_cbc_encrypt");
#ifdef WOLFSSL_SMALL_STACK
des = XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_CIPHER);
if (des == NULL) {
WOLFSSL_MSG("Failed to allocate memory for Des object");
}
else
#endif
/* OpenSSL compat, no ret */
if (wc_Des_SetKey(des, (const byte*)schedule, (const byte*)ivec,
!enc) != 0) {
WOLFSSL_MSG("wc_Des_SetKey return error.");
}
else {
/* Last incomplete block size. 0 means none over. */
int lb_sz = length % DES_BLOCK_SIZE;
/* Length of data that is a multiple of a block. */
word32 len = (word32)(length - lb_sz);
if (enc == DES_ENCRYPT) {
/* Encrypt full blocks into output. */
wc_Des_CbcEncrypt(des, output, input, len);
if (lb_sz != 0) {
/* Create a 0 padded block from remaining bytes. */
XMEMSET(lastBlock, 0, DES_BLOCK_SIZE);
XMEMCPY(lastBlock, input + len, lb_sz);
/* Encrypt last block into output. */
wc_Des_CbcEncrypt(des, output + len, lastBlock,
(word32)DES_BLOCK_SIZE);
}
}
else {
/* Decrypt full blocks into output. */
wc_Des_CbcDecrypt(des, output, input, len);
if (lb_sz != 0) {
/* Decrypt the last block that is not going to be full size. */
wc_Des_CbcDecrypt(des, lastBlock, input + len,
(word32)DES_BLOCK_SIZE);
/* Copy out the required amount of the decrypted block. */
XMEMCPY(output + len, lastBlock, lb_sz);
}
}
}
#ifdef WOLFSSL_SMALL_STACK
XFREE(des, NULL, DYNAMIC_TYPE_CIPHER);
#endif
}
/* Encrypt/decrypt data with DES-CBC. Sets the IV for following operation.
*
* TODO: OpenSSL expects a length that is a multiple of the block size but
* we are padding the last block. This is not a padding API.
* TODO: Validate parameters?
*
* @param [in] input Data to encipher.
* @param [out] output Enciphered data.
* @param [in] length Length of data to encipher.
* @param [in] schedule Key schedule.
* @param [in, out] ivec IV for CBC operation.
* @param [in] enc Whether to encrypt.
*/
void wolfSSL_DES_ncbc_encrypt(const unsigned char* input, unsigned char* output,
long length, WOLFSSL_DES_key_schedule* schedule, WOLFSSL_DES_cblock* ivec,
int enc)
{
unsigned char tmp[DES_IV_SIZE];
/* Calculate length to a multiple of block size. */
size_t offset = (size_t)length;
WOLFSSL_ENTER("wolfSSL_DES_ncbc_encrypt");
offset = (offset + DES_BLOCK_SIZE - 1) / DES_BLOCK_SIZE;
offset *= DES_BLOCK_SIZE;
offset -= DES_BLOCK_SIZE;
if (enc == DES_ENCRYPT) {
/* Encrypt data. */
wolfSSL_DES_cbc_encrypt(input, output, length, schedule, ivec, enc);
/* Use last encrypted block as new IV. */
XMEMCPY(ivec, output + offset, DES_IV_SIZE);
}
else {
/* Get last encrypted block for new IV. */
XMEMCPY(tmp, input + offset, DES_IV_SIZE);
/* Decrypt data. */
wolfSSL_DES_cbc_encrypt(input, output, length, schedule, ivec, enc);
/* Use last encrypted block as new IV. */
XMEMCPY(ivec, tmp, DES_IV_SIZE);
}
}
/* Encrypt/decrypt data with DES-CBC.
*
* WOLFSSL_DES_key_schedule is an unsigned char array of size 8.
*
* TODO: OpenSSL expects a length that is a multiple of the block size but
* we are padding the last block. This is not a padding API.
* TODO: Validate parameters?
*
* @param [in] input Data to encipher.
* @param [out] output Enciphered data.
* @param [in] length Length of data to encipher.
* @param [in] schedule Key schedule.
* @param [in, out] ivec IV for CBC operation.
* @param [in] enc Whether to encrypt.
*/
void wolfSSL_DES_ede3_cbc_encrypt(const unsigned char* input,
unsigned char* output, long sz, WOLFSSL_DES_key_schedule* ks1,
WOLFSSL_DES_key_schedule* ks2, WOLFSSL_DES_key_schedule* ks3,
WOLFSSL_DES_cblock* ivec, int enc)
{
#ifdef WOLFSSL_SMALL_STACK
Des3* des3;
#else
Des3 des3[1];
#endif
WOLFSSL_ENTER("wolfSSL_DES_ede3_cbc_encrypt");
#ifdef WOLFSSL_SMALL_STACK
des3 = XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_CIPHER);
if (des3 == NULL) {
WOLFSSL_MSG("Failed to allocate memory for Des3 object");
sz = 0;
}
#endif
if (sz > 0) {
int ret;
byte key[DES3_KEY_SIZE];
byte lastBlock[DES_BLOCK_SIZE];
int lb_sz;
word32 len;
/* Copy the three keys into the buffer for wolfCrypt DES. */
XMEMCPY(key + 0 * DES_BLOCK_SIZE, *ks1, DES_BLOCK_SIZE);
XMEMCPY(key + 1 * DES_BLOCK_SIZE, *ks2, DES_BLOCK_SIZE);
XMEMCPY(key + 2 * DES_BLOCK_SIZE, *ks3, DES_BLOCK_SIZE);
/* Last incomplete block size. 0 means none over. */
lb_sz = sz % DES_BLOCK_SIZE;
/* Length of data that is a multiple of a block. */
len = (word32)(sz - lb_sz);
/* Initialize wolfCrypt DES3 object. */
XMEMSET(des3, 0, sizeof(Des3));
ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
(void)ret;
if (enc == DES_ENCRYPT) {
/* Initialize wolfCrypt DES3 object. */
if (wc_Des3_SetKey(des3, key, (const byte*)ivec, DES_ENCRYPTION)
== 0) {
/* Encrypt full blocks into output. */
ret = wc_Des3_CbcEncrypt(des3, output, input, len);
(void)ret;
#if defined(WOLFSSL_ASYNC_CRYPT)
ret = wc_AsyncWait(ret, &des3->asyncDev, WC_ASYNC_FLAG_NONE);
(void)ret;
#endif
if (lb_sz != 0) {
/* Create a 0 padded block from remaining bytes. */
XMEMSET(lastBlock, 0, DES_BLOCK_SIZE);
XMEMCPY(lastBlock, input + len, lb_sz);
/* Encrypt last block into output. */
ret = wc_Des3_CbcEncrypt(des3, output + len, lastBlock,
(word32)DES_BLOCK_SIZE);
(void)ret;
#if defined(WOLFSSL_ASYNC_CRYPT)
ret = wc_AsyncWait(ret, &des3->asyncDev,
WC_ASYNC_FLAG_NONE);
(void)ret;
#endif
/* Copy the last encrypted block as IV for next decrypt. */
XMEMCPY(ivec, output + len, DES_BLOCK_SIZE);
}
else {
/* Copy the last encrypted block as IV for next decrypt. */
XMEMCPY(ivec, output + len - DES_BLOCK_SIZE,
DES_BLOCK_SIZE);
}
}
}
else {
/* Initialize wolfCrypt DES3 object. */
if (wc_Des3_SetKey(des3, key, (const byte*)ivec, DES_DECRYPTION)
== 0) {
/* Copy the last encrypted block as IV for next decrypt. */
if (lb_sz != 0) {
XMEMCPY(ivec, input + len, DES_BLOCK_SIZE);
}
else {
XMEMCPY(ivec, input + len - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
}
/* Decrypt full blocks into output. */
ret = wc_Des3_CbcDecrypt(des3, output, input, len);
(void)ret;
#if defined(WOLFSSL_ASYNC_CRYPT)
ret = wc_AsyncWait(ret, &des3->asyncDev, WC_ASYNC_FLAG_NONE);
(void)ret;
#endif
if (lb_sz != 0) {
/* Decrypt the last block that is not going to be full size.
*/
ret = wc_Des3_CbcDecrypt(des3, lastBlock, input + len,
(word32)DES_BLOCK_SIZE);
(void)ret;
#if defined(WOLFSSL_ASYNC_CRYPT)
ret = wc_AsyncWait(ret, &des3->asyncDev,
WC_ASYNC_FLAG_NONE);
(void)ret;
#endif
/* Copy out the required amount of the decrypted block. */
XMEMCPY(output + len, lastBlock, lb_sz);
}
}
}
wc_Des3Free(des3);
}
#ifdef WOLFSSL_SMALL_STACK
XFREE(des3, NULL, DYNAMIC_TYPE_CIPHER);
#endif
}
#ifdef WOLFSSL_DES_ECB
/* Encrypt or decrypt input message desa with key and get output in desb.
*
* @param [in] in Block to encipher with DES-ECB.
* @param [out] out Enciphered block.
* @param [in] key DES key schedule.
* @param [in] enc Whether to encrypt.
*/
void wolfSSL_DES_ecb_encrypt(WOLFSSL_DES_cblock* in, WOLFSSL_DES_cblock* out,
WOLFSSL_DES_key_schedule* key, int enc)
{
#ifdef WOLFSSL_SMALL_STACK
Des* des = NULL;
#else
Des des[1];
#endif
WOLFSSL_ENTER("wolfSSL_DES_ecb_encrypt");
/* Validate parameters. */
if ((in == NULL) || (out == NULL) || (key == NULL) ||
((enc != DES_ENCRYPT) && (enc != DES_DECRYPT))) {
WOLFSSL_MSG("Bad argument passed to wolfSSL_DES_ecb_encrypt");
}
#ifdef WOLFSSL_SMALL_STACK
else if ((des = XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_CIPHER)) == NULL) {
WOLFSSL_MSG("Failed to allocate memory for Des object");
}
#endif
/* Set key in wolfCrypt DES object for encryption or decryption.
* DES_ENCRYPT = 1, wolfSSL DES_ENCRYPTION = 0.
* DES_DECRYPT = 0, wolfSSL DES_DECRYPTION = 1.
*/
else if (wc_Des_SetKey(des, (const byte*)key, NULL, !enc) != 0) {
WOLFSSL_MSG("wc_Des_SetKey return error.");
}
else if (enc == DES_ENCRYPT) {
/* Encrypt a block with wolfCrypt DES object. */
if (wc_Des_EcbEncrypt(des, (byte*)out, (const byte*)in, DES_KEY_SIZE)
!= 0) {
WOLFSSL_MSG("wc_Des_EcbEncrypt return error.");
}
}
else {
/* Decrypt a block with wolfCrypt DES object. */
if (wc_Des_EcbDecrypt(des, (byte*)out, (const byte*)in, DES_KEY_SIZE)
!= 0) {
WOLFSSL_MSG("wc_Des_EcbDecrpyt return error.");
}
}
#ifdef WOLFSSL_SMALL_STACK
XFREE(des, NULL, DYNAMIC_TYPE_CIPHER);
#endif
}
#endif
#endif /* NO_DES3 */
#endif /* OPENSSL_EXTRA */
/*******************************************************************************
* END OF DES API
******************************************************************************/
/*******************************************************************************
* START OF AES API
******************************************************************************/
#ifdef OPENSSL_EXTRA
#if !defined(NO_AES) && !defined(WOLFSSL_NO_OPENSSL_AES_LOW_LEVEL_API)
/* Sets the key into the AES key object for encryption or decryption.
*
* TODO: check bits value?
*
* @param [in] key Key data.
* @param [in] bits Number of bits in key.
* @param [out] aes AES key object.
* @param [in] enc Whether to encrypt. AES_ENCRYPT or AES_DECRYPT.
* @return 0 on success.
* @return -1 when key or aes is NULL.
* @return -1 when setting key with wolfCrypt fails.
*/
static int wolfssl_aes_set_key(const unsigned char *key, const int bits,
AES_KEY *aes, int enc)
{
typedef char aes_test[sizeof(AES_KEY) >= sizeof(Aes) ? 1 : -1];
(void)sizeof(aes_test);
/* Validate parameters. */
if ((key == NULL) || (aes == NULL)) {
WOLFSSL_MSG("Null argument passed in");
return -1;
}
XMEMSET(aes, 0, sizeof(AES_KEY));
if (wc_AesInit((Aes*)aes, NULL, INVALID_DEVID) != 0) {
WOLFSSL_MSG("Error in initting AES key");
return -1;
}
if (wc_AesSetKey((Aes*)aes, key, ((bits)/8), NULL, enc) != 0) {
WOLFSSL_MSG("Error in setting AES key");
return -1;
}
return 0;
}
/* Sets the key into the AES key object for encryption.
*
* @param [in] key Key data.
* @param [in] bits Number of bits in key.
* @param [out] aes AES key object.
* @return 0 on success.
* @return -1 when key or aes is NULL.
* @return -1 when setting key with wolfCrypt fails.
*/
int wolfSSL_AES_set_encrypt_key(const unsigned char *key, const int bits,
AES_KEY *aes)
{
WOLFSSL_ENTER("wolfSSL_AES_set_encrypt_key");
return wolfssl_aes_set_key(key, bits, aes, AES_ENCRYPT);
}
/* Sets the key into the AES key object for decryption.
*
* @param [in] key Key data.
* @param [in] bits Number of bits in key.
* @param [out] aes AES key object.
* @return 0 on success.
* @return -1 when key or aes is NULL.
* @return -1 when setting key with wolfCrypt fails.
*/
int wolfSSL_AES_set_decrypt_key(const unsigned char *key, const int bits,
AES_KEY *aes)
{
WOLFSSL_ENTER("wolfSSL_AES_set_decrypt_key");
return wolfssl_aes_set_key(key, bits, aes, AES_DECRYPT);
}
#ifdef WOLFSSL_AES_DIRECT
/* Encrypt a 16-byte block of data using AES-ECB.
*
* wolfSSL_AES_set_encrypt_key() must have been called.
*
* #input must contain AES_BLOCK_SIZE bytes of data.
* #output must be a buffer at least AES_BLOCK_SIZE bytes in length.
*
* @param [in] input Data to encrypt.
* @param [out] output Encrypted data.
* @param [in] key AES key to use for encryption.
*/
void wolfSSL_AES_encrypt(const unsigned char* input, unsigned char* output,
AES_KEY *key)
{
WOLFSSL_ENTER("wolfSSL_AES_encrypt");
/* Validate parameters. */
if ((input == NULL) || (output == NULL) || (key == NULL)) {
WOLFSSL_MSG("Null argument passed in");
}
else
#if !defined(HAVE_SELFTEST) && \
(!defined(HAVE_FIPS) || (defined(FIPS_VERSION_GE) && FIPS_VERSION_GE(5,3)))
/* Encrypt a block with wolfCrypt AES. */
if (wc_AesEncryptDirect((Aes*)key, output, input) != 0) {
WOLFSSL_MSG("wc_AesEncryptDirect failed");
}
#else
{
/* Encrypt a block with wolfCrypt AES. */
wc_AesEncryptDirect((Aes*)key, output, input);
}
#endif
}
/* Decrypt a 16-byte block of data using AES-ECB.
*
* wolfSSL_AES_set_decrypt_key() must have been called.
*
* #input must contain AES_BLOCK_SIZE bytes of data.
* #output must be a buffer at least AES_BLOCK_SIZE bytes in length.
*
* @param [in] input Data to decrypt.
* @param [out] output Decrypted data.
* @param [in] key AES key to use for encryption.
*/
void wolfSSL_AES_decrypt(const unsigned char* input, unsigned char* output,
AES_KEY *key)
{
WOLFSSL_ENTER("wolfSSL_AES_decrypt");
/* Validate parameters. */
if ((input == NULL) || (output == NULL) || (key == NULL)) {
WOLFSSL_MSG("Null argument passed in");
}
else
#if !defined(HAVE_SELFTEST) && \
(!defined(HAVE_FIPS) || (defined(FIPS_VERSION_GE) && FIPS_VERSION_GE(5,3)))
/* Decrypt a block with wolfCrypt AES. */
if (wc_AesDecryptDirect((Aes*)key, output, input) != 0) {
WOLFSSL_MSG("wc_AesDecryptDirect failed");
}
#else
{
/* Decrypt a block with wolfCrypt AES. */
wc_AesDecryptDirect((Aes*)key, output, input);
}
#endif
}
#endif /* WOLFSSL_AES_DIRECT */
#ifdef HAVE_AES_ECB
/* Encrypt/decrypt a 16-byte block of data using AES-ECB.
*
* wolfSSL_AES_set_encrypt_key() or wolfSSL_AES_set_decrypt_key ()must have been
* called.
*
* #input must contain AES_BLOCK_SIZE bytes of data.
* #output must be a buffer at least AES_BLOCK_SIZE bytes in length.
*
* @param [in] in Data to encipher.
* @param [out] out Enciphered data.
* @param [in] key AES key to use for encryption/decryption.
* @param [in] enc Whether to encrypt.
* AES_ENCRPT for encryption, AES_DECRYPT for decryption.
*/
void wolfSSL_AES_ecb_encrypt(const unsigned char *in, unsigned char* out,
AES_KEY *key, const int enc)
{
WOLFSSL_ENTER("wolfSSL_AES_ecb_encrypt");
/* Validate parameters. */
if ((key == NULL) || (in == NULL) || (out == NULL)) {
WOLFSSL_MSG("Error, Null argument passed in");
}
else if (enc == AES_ENCRYPT) {
/* Encrypt block. */
if (wc_AesEcbEncrypt((Aes*)key, out, in, AES_BLOCK_SIZE) != 0) {
WOLFSSL_MSG("Error with AES CBC encrypt");
}
}
else {
#ifdef HAVE_AES_DECRYPT
/* Decrypt block. */
if (wc_AesEcbDecrypt((Aes*)key, out, in, AES_BLOCK_SIZE) != 0) {
WOLFSSL_MSG("Error with AES CBC decrypt");
}
#else
WOLFSSL_MSG("AES decryption not compiled in");
#endif
}
}
#endif /* HAVE_AES_ECB */
#ifdef HAVE_AES_CBC
/* Encrypt/decrypt data with IV using AES-CBC.
*
* wolfSSL_AES_set_encrypt_key() or wolfSSL_AES_set_decrypt_key() must have been
* called.
*
* @param [in] in Data to encipher.
* @param [out] out Enciphered data.
* @param [in] len Length of data to encipher.
* @param [in] key AES key to use for encryption/decryption.
* @param [in, out] iv Initialization Vector (IV) of CBC mode.
* On in, used with first block.
* On out, IV for further operations.
* @param [in] enc Whether to encrypt.
* AES_ENCRPT for encryption, AES_DECRYPT for decryption.
*/
void wolfSSL_AES_cbc_encrypt(const unsigned char *in, unsigned char* out,
size_t len, AES_KEY *key, unsigned char* iv, const int enc)
{
WOLFSSL_ENTER("wolfSSL_AES_cbc_encrypt");
/* Validate parameters. */
if ((key == NULL) || (in == NULL) || (out == NULL) || (iv == NULL) ||
(len == 0)) {
WOLFSSL_MSG("Error, Null argument passed in");
}
/* Set IV for operation. */
else {
int ret;
Aes* aes = (Aes*)key;
if ((ret = wc_AesSetIV(aes, (const byte*)iv)) != 0) {
WOLFSSL_MSG("Error with setting iv");
}
else if (enc == AES_ENCRYPT) {
/* Encrypt with wolfCrypt AES object. */
if ((ret = wc_AesCbcEncrypt(aes, out, in, (word32)len)) != 0) {
WOLFSSL_MSG("Error with AES CBC encrypt");
}
}
else {
/* Decrypt with wolfCrypt AES object. */
if ((ret = wc_AesCbcDecrypt(aes, out, in, (word32)len)) != 0) {
WOLFSSL_MSG("Error with AES CBC decrypt");
}
}
if (ret == 0) {
/* Get IV for next operation. */
XMEMCPY(iv, (byte*)(aes->reg), AES_BLOCK_SIZE);
}
}
}
#endif /* HAVE_AES_CBC */
/* Encrypt/decrypt data with IV using AES-CFB.
*
* wolfSSL_AES_set_encrypt_key() must have been called.
*
* @param [in] in Data to encipher.
* @param [out] out Enciphered data.
* @param [in] len Length of data to encipher.
* @param [in] key AES key to use for encryption/decryption.
* @param [in, out] iv Initialization Vector (IV) of CFB mode.
* On in, used with first block.
* On out, IV for further operations.
* @param [out] num Number of bytes used from last incomplete block.
* @param [in] enc Whether to encrypt.
* AES_ENCRPT for encryption, AES_DECRYPT for decryption.
*/
void wolfSSL_AES_cfb128_encrypt(const unsigned char *in, unsigned char* out,
size_t len, AES_KEY *key, unsigned char* iv, int* num, const int enc)
{
#ifndef WOLFSSL_AES_CFB
WOLFSSL_MSG("CFB mode not enabled please use macro WOLFSSL_AES_CFB");
(void)in;
(void)out;
(void)len;
(void)key;
(void)iv;
(void)num;
(void)enc;
#else
WOLFSSL_ENTER("wolfSSL_AES_cfb_encrypt");
/* Validate parameters. */
if ((key == NULL) || (in == NULL) || (out == NULL) || (iv == NULL)) {
WOLFSSL_MSG("Error, Null argument passed in");
}
else {
int ret;
Aes* aes = (Aes*)key;
/* Copy the IV directly into reg here because wc_AesSetIV clears
* leftover bytes field "left", and this function relies on the leftover
* bytes being preserved between calls.
*/
XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);
if (enc == AES_ENCRYPT) {
/* Encrypt data with AES-CFB. */
if ((ret = wc_AesCfbEncrypt(aes, out, in, (word32)len)) != 0) {
WOLFSSL_MSG("Error with AES CBC encrypt");
}
}
else {
/* Decrypt data with AES-CFB. */
if ((ret = wc_AesCfbDecrypt(aes, out, in, (word32)len)) != 0) {
WOLFSSL_MSG("Error with AES CBC decrypt");
}
}
if (ret == 0) {
/* Copy IV out after operation. */
XMEMCPY(iv, (byte*)(aes->reg), AES_BLOCK_SIZE);
/* Store number of left over bytes to num. */
if (num != NULL) {
*num = (AES_BLOCK_SIZE - aes->left) % AES_BLOCK_SIZE;
}
}
}
#endif /* WOLFSSL_AES_CFB */
}
/* wc_AesKey*Wrap_ex API not available in FIPS and SELFTEST */
#if defined(HAVE_AES_KEYWRAP) && !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST)
/* Wrap (encrypt) a key using RFC3394 AES key wrap.
*
* @param [in, out] key AES key.
* @param [in] iv Initialization vector used by encryption mode.
* @param [out] out Wrapped key.
* @param [in] in Key data to wrap.
* @param [in] inSz Length of key to wrap in bytes.
* @return Length of encrypted key in bytes.
* @return 0 when key, iv, out or in is NULL.
* @return 0 when key length is not valid.
*/
int wolfSSL_AES_wrap_key(AES_KEY *key, const unsigned char *iv,
unsigned char *out, const unsigned char *in, unsigned int inSz)
{
int ret = 0;
int len = 0;
WOLFSSL_ENTER("wolfSSL_AES_wrap_key");
/* Validate parameters. */
if ((out == NULL) || (in == NULL)) {
WOLFSSL_MSG("Error, Null argument passed in");
ret = BAD_FUNC_ARG;
}
/* Wrap key. */
if ((ret == 0) && ((ret = wc_AesKeyWrap_ex((Aes*)key, in, inSz, out,
inSz + KEYWRAP_BLOCK_SIZE, iv)) > 0)) {
/* Get the length of the wrapped key. */
len = ret;
}
return len;
}
/* Unwrap (decrypt) a key using RFC3394 AES key wrap.
*
* @param [in, out] key AES key.
* @param [in] iv Initialization vector used by decryption mode.
* @param [out] out Unwrapped key.
* @param [in] in Wrapped key data.
* @param [in] inSz Length of wrapped key data in bytes.
* @return Length of decrypted key in bytes.
* @return 0 when key, iv, out or in is NULL.
* @return 0 when wrapped key data length is not valid.
*/
int wolfSSL_AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
unsigned char *out, const unsigned char *in, unsigned int inSz)
{
int ret = 0;
int len = 0;
WOLFSSL_ENTER("wolfSSL_AES_wrap_key");
/* Validate parameters. */
if ((out == NULL) || (in == NULL)) {
WOLFSSL_MSG("Error, Null argument passed in");
ret = BAD_FUNC_ARG;
}
/* Unwrap key. */
if ((ret == 0) && ((ret = wc_AesKeyUnWrap_ex((Aes*)key, in, inSz, out,
inSz + KEYWRAP_BLOCK_SIZE, iv)) > 0)) {
/* Get the length of the unwrapped key. */
len = ret;
}
return len;
}
#endif /* HAVE_AES_KEYWRAP && !HAVE_FIPS && !HAVE_SELFTEST */
#ifdef HAVE_CTS
/* Ciphertext stealing encryption compatible with RFC2040 and RFC3962.
*
* @param [in] in Data to encrypt.
* @param [out] out Encrypted data.
* @param [in] len Length of data to encrypt.
* @param [in] key Symmetric key.
* @param [in] iv Initialization Vector for encryption mode.
* @param [in] cbc CBC mode encryption function.
* @return Length of encrypted data in bytes on success.
* @return 0 when in, out, cbc, key or iv are NULL.
* @return 0 when len is less than or equal to 16 bytes.
*/
size_t wolfSSL_CRYPTO_cts128_encrypt(const unsigned char *in,
unsigned char *out, size_t len, const void *key, unsigned char *iv,
WOLFSSL_CBC128_CB cbc)
{
byte lastBlk[WOLFSSL_CTS128_BLOCK_SZ];
int lastBlkLen = len % WOLFSSL_CTS128_BLOCK_SZ;
WOLFSSL_ENTER("wolfSSL_CRYPTO_cts128_encrypt");
/* Validate parameters. */
if ((in == NULL) || (out == NULL) || (len <= WOLFSSL_CTS128_BLOCK_SZ) ||
(cbc == NULL) || (key == NULL) || (iv == NULL)) {
WOLFSSL_MSG("Bad parameter");
len = 0;
}
if (len > 0) {
/* Must have a last block. */
if (lastBlkLen == 0) {
lastBlkLen = WOLFSSL_CTS128_BLOCK_SZ;
}
/* Encrypt data up to last block */
(*cbc)(in, out, len - lastBlkLen, key, iv, AES_ENCRYPT);
/* Move to last block */
in += len - lastBlkLen;
out += len - lastBlkLen;
/* RFC2040: Pad Pn with zeros at the end to create P of length BB. */
XMEMCPY(lastBlk, in, lastBlkLen);
XMEMSET(lastBlk + lastBlkLen, 0, WOLFSSL_CTS128_BLOCK_SZ - lastBlkLen);
/* RFC2040: Select the first Ln bytes of En-1 to create Cn */
XMEMCPY(out, out - WOLFSSL_CTS128_BLOCK_SZ, lastBlkLen);
/* Encrypt last block. */
(*cbc)(lastBlk, out - WOLFSSL_CTS128_BLOCK_SZ, WOLFSSL_CTS128_BLOCK_SZ,
key, iv, AES_ENCRYPT);
}
return len;
}
/* Ciphertext stealing decryption compatible with RFC2040 and RFC3962.
*
* @param [in] in Data to decrypt.
* @param [out] out Decrypted data.
* @param [in] len Length of data to decrypt.
* @param [in] key Symmetric key.
* @param [in] iv Initialization Vector for decryption mode.
* @param [in] cbc CBC mode encryption function.
* @return Length of decrypted data in bytes on success.
* @return 0 when in, out, cbc, key or iv are NULL.
* @return 0 when len is less than or equal to 16 bytes.
*/
size_t wolfSSL_CRYPTO_cts128_decrypt(const unsigned char *in,
unsigned char *out, size_t len, const void *key, unsigned char *iv,
WOLFSSL_CBC128_CB cbc)
{
byte lastBlk[WOLFSSL_CTS128_BLOCK_SZ];
byte prevBlk[WOLFSSL_CTS128_BLOCK_SZ];
int lastBlkLen = len % WOLFSSL_CTS128_BLOCK_SZ;
WOLFSSL_ENTER("wolfSSL_CRYPTO_cts128_decrypt");
/* Validate parameters. */
if ((in == NULL) || (out == NULL) || (len <= WOLFSSL_CTS128_BLOCK_SZ) ||
(cbc == NULL) || (key == NULL) || (iv == NULL)) {
WOLFSSL_MSG("Bad parameter");
len = 0;
}
if (len > 0) {
/* Must have a last block. */
if (lastBlkLen == 0) {
lastBlkLen = WOLFSSL_CTS128_BLOCK_SZ;
}
if (len - lastBlkLen - WOLFSSL_CTS128_BLOCK_SZ != 0) {
/* Decrypt up to last two blocks */
(*cbc)(in, out, len - lastBlkLen - WOLFSSL_CTS128_BLOCK_SZ, key, iv,
AES_DECRYPTION);
/* Move to last two blocks */
in += len - lastBlkLen - WOLFSSL_CTS128_BLOCK_SZ;
out += len - lastBlkLen - WOLFSSL_CTS128_BLOCK_SZ;
}
/* RFC2040: Decrypt Cn-1 to create Dn.
* Use 0 buffer as IV to do straight decryption.
* This places the Cn-1 block at lastBlk */
XMEMSET(lastBlk, 0, WOLFSSL_CTS128_BLOCK_SZ);
(*cbc)(in, prevBlk, WOLFSSL_CTS128_BLOCK_SZ, key, lastBlk, AES_DECRYPT);
/* RFC2040: Append the tail (BB minus Ln) bytes of Xn to Cn
* to create En. */
XMEMCPY(prevBlk, in + WOLFSSL_CTS128_BLOCK_SZ, lastBlkLen);
/* Cn and Cn-1 can now be decrypted */
(*cbc)(prevBlk, out, WOLFSSL_CTS128_BLOCK_SZ, key, iv, AES_DECRYPT);
(*cbc)(lastBlk, lastBlk, WOLFSSL_CTS128_BLOCK_SZ, key, iv, AES_DECRYPT);
XMEMCPY(out + WOLFSSL_CTS128_BLOCK_SZ, lastBlk, lastBlkLen);
}
return len;
}
#endif /* HAVE_CTS */
#endif /* !NO_AES && !WOLFSSL_NO_OPENSSL_AES_LOW_LEVEL_API */
#endif /* OPENSSL_EXTRA */
/*******************************************************************************
* END OF AES API
******************************************************************************/
/*******************************************************************************
* START OF RC4 API
******************************************************************************/
#ifdef OPENSSL_EXTRA
#ifndef NO_RC4
/* Set the key state for Arc4 key.
*
* @param [out] key Arc4 key.
* @param [in] len Length of key in buffer.
* @param [in] data Key data buffer.
*/
void wolfSSL_RC4_set_key(WOLFSSL_RC4_KEY* key, int len,
const unsigned char* data)
{
typedef char rc4_test[sizeof(WOLFSSL_RC4_KEY) >= sizeof(Arc4) ? 1 : -1];
(void)sizeof(rc4_test);
WOLFSSL_ENTER("wolfSSL_RC4_set_key");
/* Validate parameters. */
if ((key == NULL) || (len < 0) || (data == NULL)) {
WOLFSSL_MSG("bad argument passed in");
}
else {
/* Reset wolfCrypt Arc4 object. */
XMEMSET(key, 0, sizeof(WOLFSSL_RC4_KEY));
/* Set key into wolfCrypt Arc4 object. */
wc_Arc4SetKey((Arc4*)key, data, (word32)len);
}
}
/* Encrypt/decrypt with Arc4 key.
*
* @param [in] len Length of data to encrypt/decrypt.
* @param [in] in Data to encrypt/decrypt.
* @param [out] out Enciphered data.
*/
void wolfSSL_RC4(WOLFSSL_RC4_KEY* key, size_t len, const unsigned char* in,
unsigned char* out)
{
WOLFSSL_ENTER("wolfSSL_RC4");
/* Validate parameters. */
if ((key == NULL) || (in == NULL) || (out == NULL)) {
WOLFSSL_MSG("Bad argument passed in");
}
else {
/* Encrypt/decrypt data. */
wc_Arc4Process((Arc4*)key, out, in, (word32)len);
}
}
#endif /* NO_RC4 */
#endif /* OPENSSL_EXTRA */
/*******************************************************************************
* END OF RC4 API
******************************************************************************/
#endif /* WOLFSSL_SSL_CRYPTO_INCLUDED */
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