462 lines
16 KiB
C
462 lines
16 KiB
C
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/* rsa.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/*!
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\file wolfssl/wolfcrypt/rsa.h
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*/
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/*
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DESCRIPTION
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This library provides the interface to the RSA.
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RSA keys can be used to encrypt, decrypt, sign and verify data.
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*/
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#ifndef WOLF_CRYPT_RSA_H
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#define WOLF_CRYPT_RSA_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifndef NO_RSA
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/* RSA default exponent */
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#ifndef WC_RSA_EXPONENT
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#define WC_RSA_EXPONENT 65537L
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#endif
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#if defined(WC_RSA_NONBLOCK)
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/* enable support for fast math based non-blocking exptmod */
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/* this splits the RSA function into many smaller operations */
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#ifndef USE_FAST_MATH
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#error RSA non-blocking mode only supported using fast math
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#endif
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#ifndef TFM_TIMING_RESISTANT
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#error RSA non-blocking mode only supported with timing resistance enabled
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#endif
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/* RSA bounds check is not supported with RSA non-blocking mode */
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#undef NO_RSA_BOUNDS_CHECK
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#define NO_RSA_BOUNDS_CHECK
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#endif
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/* allow for user to plug in own crypto */
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#if !defined(HAVE_FIPS) && (defined(HAVE_USER_RSA) || defined(HAVE_FAST_RSA))
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#include "user_rsa.h"
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#else
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#include <wolfssl/wolfcrypt/wolfmath.h>
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#include <wolfssl/wolfcrypt/random.h>
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#if defined(HAVE_FIPS) && \
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defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
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#include <wolfssl/wolfcrypt/fips.h>
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#endif
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/* header file needed for OAEP padding */
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#include <wolfssl/wolfcrypt/hash.h>
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#ifdef WOLFSSL_XILINX_CRYPT
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#ifdef WOLFSSL_XILINX_CRYPT_VERSAL
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#include <wolfssl/wolfcrypt/port/xilinx/xil-versal-glue.h>
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#else
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#include <xsecure_rsa.h>
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#endif
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#endif
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#if defined(WOLFSSL_CRYPTOCELL)
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#include <wolfssl/wolfcrypt/port/arm/cryptoCell.h>
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#endif
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#if defined(WOLFSSL_KCAPI_RSA)
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#include <wolfssl/wolfcrypt/port/kcapi/kcapi_rsa.h>
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#endif
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#if defined(WOLFSSL_DEVCRYPTO_RSA)
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#include <wolfssl/wolfcrypt/port/devcrypto/wc_devcrypto.h>
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#endif
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#if defined(WOLFSSL_RENESAS_FSPSM)
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#include <wolfssl/wolfcrypt/port/renesas/renesas-fspsm-crypt.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef RSA_MIN_SIZE
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#define RSA_MIN_SIZE 512
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#endif
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#ifndef RSA_MAX_SIZE
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#ifdef USE_FAST_MATH
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/* FP implementation support numbers up to FP_MAX_BITS / 2 bits. */
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#define RSA_MAX_SIZE (FP_MAX_BITS / 2)
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#if defined(WOLFSSL_MYSQL_COMPATIBLE) && RSA_MAX_SIZE < 8192
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#error "MySQL needs FP_MAX_BITS at least at 16384"
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#endif
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#elif defined(WOLFSSL_SP_MATH_ALL) || defined(WOLFSSL_SP_MATH)
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/* SP implementation supports numbers of SP_INT_BITS bits. */
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#define RSA_MAX_SIZE (((SP_INT_BITS + 7) / 8) * 8)
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#if defined(WOLFSSL_MYSQL_COMPATIBLE) && RSA_MAX_SIZE < 8192
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#error "MySQL needs SP_INT_BITS at least at 8192"
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#endif
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#else
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#ifdef WOLFSSL_MYSQL_COMPATIBLE
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/* Integer maths is dynamic but we only go up to 8192 bits. */
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#define RSA_MAX_SIZE 8192
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#else
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/* Integer maths is dynamic but we only go up to 4096 bits. */
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#define RSA_MAX_SIZE 4096
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#endif
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#endif
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#endif
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/* avoid redefinition of structs */
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#if !defined(HAVE_FIPS) || \
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(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
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#ifdef WOLFSSL_ASYNC_CRYPT
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#include <wolfssl/wolfcrypt/async.h>
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#ifdef WOLFSSL_CERT_GEN
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#include <wolfssl/wolfcrypt/asn.h>
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#endif
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#endif
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enum {
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RSA_PUBLIC = 0,
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RSA_PRIVATE = 1,
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RSA_TYPE_UNKNOWN = -1,
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RSA_PUBLIC_ENCRYPT = 0,
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RSA_PUBLIC_DECRYPT = 1,
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RSA_PRIVATE_ENCRYPT = 2,
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RSA_PRIVATE_DECRYPT = 3,
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RSA_BLOCK_TYPE_1 = 1,
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RSA_BLOCK_TYPE_2 = 2,
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RSA_MIN_PAD_SZ = 11, /* separator + 0 + pad value + 8 pads */
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RSA_PSS_PAD_SZ = 8,
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RSA_PSS_SALT_MAX_SZ = 62,
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#ifdef OPENSSL_EXTRA
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RSA_PKCS1_PADDING_SIZE = 11,
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RSA_PKCS1_OAEP_PADDING_SIZE = 42, /* (2 * hashlen(SHA-1)) + 2 */
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#endif
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#ifdef WC_RSA_PSS
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RSA_PSS_PAD_TERM = 0xBC,
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#endif
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RSA_PSS_SALT_LEN_DEFAULT = -1,
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#ifdef WOLFSSL_PSS_SALT_LEN_DISCOVER
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RSA_PSS_SALT_LEN_DISCOVER = -2,
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#endif
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#ifdef WOLF_PRIVATE_KEY_ID
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RSA_MAX_ID_LEN = 32,
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RSA_MAX_LABEL_LEN = 32,
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#endif
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WOLF_ENUM_DUMMY_LAST_ELEMENT(RSA)
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};
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#ifdef WC_RSA_NONBLOCK
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typedef struct RsaNb {
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exptModNb_t exptmod; /* non-block expt_mod */
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mp_int tmp;
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} RsaNb;
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#endif
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/* RSA */
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struct RsaKey {
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mp_int n, e;
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#ifndef WOLFSSL_RSA_PUBLIC_ONLY
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mp_int d, p, q;
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#if defined(WOLFSSL_KEY_GEN) || defined(OPENSSL_EXTRA) || !defined(RSA_LOW_MEM)
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mp_int dP, dQ, u;
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#endif
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#endif
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void* heap; /* for user memory overrides */
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byte* data; /* temp buffer for async RSA */
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int type; /* public or private */
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int state;
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word32 dataLen;
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#ifdef WC_RSA_BLINDING
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WC_RNG* rng; /* for PrivateDecrypt blinding */
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#endif
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#ifdef WOLFSSL_SE050
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word32 keyId;
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byte keyIdSet;
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#endif
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#ifdef WOLF_CRYPTO_CB
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void* devCtx;
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int devId;
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#endif
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#if defined(HAVE_PKCS11)
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byte isPkcs11 : 1; /* indicate if PKCS11 is preferred */
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#endif
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#ifdef WOLFSSL_ASYNC_CRYPT
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WC_ASYNC_DEV asyncDev;
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#ifdef WOLFSSL_CERT_GEN
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CertSignCtx certSignCtx; /* context info for cert sign (MakeSignature) */
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#endif
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#endif /* WOLFSSL_ASYNC_CRYPT */
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#ifdef WOLFSSL_XILINX_CRYPT
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word32 pubExp; /* to keep values in scope they are here in struct */
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byte* mod;
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#if defined(WOLFSSL_XILINX_CRYPT_VERSAL)
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int mSz;
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wc_Xsecure xSec;
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#else
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XSecure_Rsa xRsa;
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#endif
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#endif
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#if defined(WOLFSSL_KCAPI_RSA)
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struct kcapi_handle* handle;
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#endif
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#ifdef WOLF_PRIVATE_KEY_ID
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byte id[RSA_MAX_ID_LEN];
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int idLen;
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char label[RSA_MAX_LABEL_LEN];
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int labelLen;
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#endif
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#if defined(WOLFSSL_ASYNC_CRYPT) || !defined(WOLFSSL_RSA_VERIFY_INLINE) && \
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!defined(WOLFSSL_NO_MALLOC)
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byte dataIsAlloc;
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#endif
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#ifdef WC_RSA_NONBLOCK
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RsaNb* nb;
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#endif
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#ifdef WOLFSSL_AFALG_XILINX_RSA
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int alFd;
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int rdFd;
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#endif
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#if defined(WOLFSSL_CRYPTOCELL)
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rsa_context_t ctx;
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#endif
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#if defined(WOLFSSL_CAAM)
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word32 blackKey;
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#endif
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#if defined(WOLFSSL_DEVCRYPTO_RSA)
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WC_CRYPTODEV ctx;
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#endif
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#if defined(WOLFSSL_RENESAS_FSPSM)
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FSPSM_RSA_CTX ctx;
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#endif
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};
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#ifndef WC_RSAKEY_TYPE_DEFINED
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typedef struct RsaKey RsaKey;
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#define WC_RSAKEY_TYPE_DEFINED
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#endif
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#endif /* HAVE_FIPS */
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WOLFSSL_API int wc_InitRsaKey(RsaKey* key, void* heap);
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WOLFSSL_API int wc_InitRsaKey_ex(RsaKey* key, void* heap, int devId);
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WOLFSSL_API int wc_FreeRsaKey(RsaKey* key);
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#ifdef WOLF_PRIVATE_KEY_ID
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WOLFSSL_API int wc_InitRsaKey_Id(RsaKey* key, unsigned char* id, int len,
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void* heap, int devId);
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WOLFSSL_API int wc_InitRsaKey_Label(RsaKey* key, const char* label, void* heap,
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int devId);
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#endif
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WOLFSSL_API int wc_CheckRsaKey(RsaKey* key);
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#ifdef WOLFSSL_XILINX_CRYPT
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WOLFSSL_LOCAL int wc_InitRsaHw(RsaKey* key);
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#endif /* WOLFSSL_XILINX_CRYPT */
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#ifdef WOLFSSL_SE050
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WOLFSSL_API int wc_RsaUseKeyId(RsaKey* key, word32 keyId, word32 flags);
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WOLFSSL_API int wc_RsaGetKeyId(RsaKey* key, word32* keyId);
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#endif /* WOLFSSL_SE050 */
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WOLFSSL_API int wc_RsaFunction(const byte* in, word32 inLen, byte* out,
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word32* outLen, int type, RsaKey* key, WC_RNG* rng);
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WOLFSSL_API int wc_RsaPublicEncrypt(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key, WC_RNG* rng);
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WOLFSSL_API int wc_RsaPrivateDecryptInline(byte* in, word32 inLen, byte** out,
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RsaKey* key);
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WOLFSSL_API int wc_RsaPrivateDecrypt(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key);
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WOLFSSL_API int wc_RsaSSL_Sign(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key, WC_RNG* rng);
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WOLFSSL_API int wc_RsaPSS_Sign(const byte* in, word32 inLen, byte* out,
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word32 outLen, enum wc_HashType hash, int mgf,
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RsaKey* key, WC_RNG* rng);
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WOLFSSL_API int wc_RsaPSS_Sign_ex(const byte* in, word32 inLen, byte* out,
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word32 outLen, enum wc_HashType hash,
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int mgf, int saltLen, RsaKey* key,
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WC_RNG* rng);
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WOLFSSL_API int wc_RsaSSL_VerifyInline(byte* in, word32 inLen, byte** out,
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RsaKey* key);
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WOLFSSL_API int wc_RsaSSL_Verify(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key);
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WOLFSSL_API int wc_RsaSSL_Verify_ex(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key, int pad_type);
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WOLFSSL_API int wc_RsaSSL_Verify_ex2(const byte* in, word32 inLen, byte* out,
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word32 outLen, RsaKey* key, int pad_type,
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enum wc_HashType hash);
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WOLFSSL_API int wc_RsaPSS_VerifyInline(byte* in, word32 inLen, byte** out,
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enum wc_HashType hash, int mgf,
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RsaKey* key);
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WOLFSSL_API int wc_RsaPSS_VerifyInline_ex(byte* in, word32 inLen, byte** out,
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enum wc_HashType hash, int mgf,
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int saltLen, RsaKey* key);
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WOLFSSL_API int wc_RsaPSS_Verify(byte* in, word32 inLen, byte* out,
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word32 outLen, enum wc_HashType hash, int mgf,
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RsaKey* key);
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WOLFSSL_API int wc_RsaPSS_Verify_ex(byte* in, word32 inLen, byte* out,
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word32 outLen, enum wc_HashType hash,
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int mgf, int saltLen, RsaKey* key);
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WOLFSSL_API int wc_RsaPSS_CheckPadding(const byte* in, word32 inLen, byte* sig,
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word32 sigSz,
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enum wc_HashType hashType);
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WOLFSSL_API int wc_RsaPSS_CheckPadding_ex(const byte* in, word32 inLen,
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byte* sig, word32 sigSz,
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enum wc_HashType hashType,
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int saltLen, int bits);
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WOLFSSL_API int wc_RsaPSS_CheckPadding_ex2(const byte* in, word32 inLen,
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byte* sig, word32 sigSz,
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enum wc_HashType hashType,
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int saltLen, int bits, void* heap);
|
||
|
|
WOLFSSL_API int wc_RsaPSS_VerifyCheckInline(byte* in, word32 inLen, byte** out,
|
||
|
|
const byte* digest, word32 digentLen,
|
||
|
|
enum wc_HashType hash, int mgf,
|
||
|
|
RsaKey* key);
|
||
|
|
WOLFSSL_API int wc_RsaPSS_VerifyCheck(byte* in, word32 inLen,
|
||
|
|
byte* out, word32 outLen,
|
||
|
|
const byte* digest, word32 digestLen,
|
||
|
|
enum wc_HashType hash, int mgf,
|
||
|
|
RsaKey* key);
|
||
|
|
|
||
|
|
WOLFSSL_API int wc_RsaEncryptSize(const RsaKey* key);
|
||
|
|
|
||
|
|
#if !defined(HAVE_FIPS) || \
|
||
|
|
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
|
||
|
|
/* to avoid asn duplicate symbols @wc_fips */
|
||
|
|
WOLFSSL_API int wc_RsaPrivateKeyDecode(const byte* input, word32* inOutIdx,
|
||
|
|
RsaKey* key, word32 inSz);
|
||
|
|
#if !defined(HAVE_FIPS) || \
|
||
|
|
(defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION > 2))
|
||
|
|
WOLFSSL_API int wc_RsaPrivateKeyValidate(const byte* input, word32* inOutIdx,
|
||
|
|
int* keySz, word32 inSz);
|
||
|
|
#endif
|
||
|
|
WOLFSSL_API int wc_RsaPublicKeyDecode(const byte* input, word32* inOutIdx,
|
||
|
|
RsaKey* key, word32 inSz);
|
||
|
|
WOLFSSL_API int wc_RsaPublicKeyDecodeRaw(const byte* n, word32 nSz,
|
||
|
|
const byte* e, word32 eSz, RsaKey* key);
|
||
|
|
#if defined(WOLFSSL_KEY_GEN) || defined(OPENSSL_EXTRA) || \
|
||
|
|
defined(WOLFSSL_KCAPI_RSA) || defined(WOLFSSL_SE050)
|
||
|
|
WOLFSSL_API int wc_RsaKeyToDer(RsaKey* key, byte* output, word32 inLen);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef WC_RSA_BLINDING
|
||
|
|
WOLFSSL_API int wc_RsaSetRNG(RsaKey* key, WC_RNG* rng);
|
||
|
|
#endif
|
||
|
|
#ifdef WC_RSA_NONBLOCK
|
||
|
|
WOLFSSL_API int wc_RsaSetNonBlock(RsaKey* key, RsaNb* nb);
|
||
|
|
#ifdef WC_RSA_NONBLOCK_TIME
|
||
|
|
WOLFSSL_API int wc_RsaSetNonBlockTime(RsaKey* key, word32 maxBlockUs,
|
||
|
|
word32 cpuMHz);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
choice of padding added after fips, so not available when using fips RSA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Mask Generation Function Identifiers */
|
||
|
|
#define WC_MGF1NONE 0
|
||
|
|
#define WC_MGF1SHA1 26
|
||
|
|
#define WC_MGF1SHA224 4
|
||
|
|
#define WC_MGF1SHA256 1
|
||
|
|
#define WC_MGF1SHA384 2
|
||
|
|
#define WC_MGF1SHA512 3
|
||
|
|
#define WC_MGF1SHA512_224 5
|
||
|
|
#define WC_MGF1SHA512_256 6
|
||
|
|
|
||
|
|
/* Padding types */
|
||
|
|
#define WC_RSA_PKCSV15_PAD 0
|
||
|
|
#define WC_RSA_OAEP_PAD 1
|
||
|
|
#define WC_RSA_PSS_PAD 2
|
||
|
|
#define WC_RSA_NO_PAD 3
|
||
|
|
|
||
|
|
WOLFSSL_API int wc_RsaPublicEncrypt_ex(const byte* in, word32 inLen, byte* out,
|
||
|
|
word32 outLen, RsaKey* key, WC_RNG* rng, int type,
|
||
|
|
enum wc_HashType hash, int mgf, byte* label, word32 labelSz);
|
||
|
|
WOLFSSL_API int wc_RsaPrivateDecrypt_ex(const byte* in, word32 inLen,
|
||
|
|
byte* out, word32 outLen, RsaKey* key, int type,
|
||
|
|
enum wc_HashType hash, int mgf, byte* label, word32 labelSz);
|
||
|
|
WOLFSSL_API int wc_RsaPrivateDecryptInline_ex(byte* in, word32 inLen,
|
||
|
|
byte** out, RsaKey* key, int type, enum wc_HashType hash,
|
||
|
|
int mgf, byte* label, word32 labelSz);
|
||
|
|
#if defined(WC_RSA_DIRECT) || defined(WC_RSA_NO_PADDING)
|
||
|
|
WOLFSSL_API int wc_RsaDirect(byte* in, word32 inLen, byte* out, word32* outSz,
|
||
|
|
RsaKey* key, int type, WC_RNG* rng);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* HAVE_FIPS */
|
||
|
|
|
||
|
|
WOLFSSL_API int wc_RsaFlattenPublicKey(RsaKey* key, byte* e, word32* eSz,
|
||
|
|
byte* n, word32* nSz);
|
||
|
|
WOLFSSL_API int wc_RsaExportKey(RsaKey* key,
|
||
|
|
byte* e, word32* eSz,
|
||
|
|
byte* n, word32* nSz,
|
||
|
|
byte* d, word32* dSz,
|
||
|
|
byte* p, word32* pSz,
|
||
|
|
byte* q, word32* qSz);
|
||
|
|
|
||
|
|
#ifdef WOLFSSL_KEY_GEN
|
||
|
|
WOLFSSL_API int wc_MakeRsaKey(RsaKey* key, int size, long e, WC_RNG* rng);
|
||
|
|
WOLFSSL_API int wc_CheckProbablePrime_ex(const byte* p, word32 pSz,
|
||
|
|
const byte* q, word32 qSz,
|
||
|
|
const byte* e, word32 eSz,
|
||
|
|
int nlen, int* isPrime, WC_RNG* rng);
|
||
|
|
WOLFSSL_API int wc_CheckProbablePrime(const byte* p, word32 pSz,
|
||
|
|
const byte* q, word32 qSz,
|
||
|
|
const byte* e, word32 eSz,
|
||
|
|
int nlen, int* isPrime);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
WOLFSSL_LOCAL int wc_RsaPad_ex(const byte* input, word32 inputLen, byte* pkcsBlock,
|
||
|
|
word32 pkcsBlockLen, byte padValue, WC_RNG* rng, int padType,
|
||
|
|
enum wc_HashType hType, int mgf, byte* optLabel, word32 labelLen,
|
||
|
|
int saltLen, int bits, void* heap);
|
||
|
|
WOLFSSL_LOCAL int wc_RsaUnPad_ex(byte* pkcsBlock, word32 pkcsBlockLen, byte** out,
|
||
|
|
byte padValue, int padType, enum wc_HashType hType,
|
||
|
|
int mgf, byte* optLabel, word32 labelLen, int saltLen,
|
||
|
|
int bits, void* heap);
|
||
|
|
|
||
|
|
WOLFSSL_LOCAL int wc_hash2mgf(enum wc_HashType hType);
|
||
|
|
|
||
|
|
#endif /* HAVE_USER_RSA */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} /* extern "C" */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* NO_RSA */
|
||
|
|
#endif /* WOLF_CRYPT_RSA_H */
|
||
|
|
|