653 lines
26 KiB
C
653 lines
26 KiB
C
/**
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* \file rsa.h
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*
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* \brief The RSA public-key cryptosystem
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_RSA_H
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#define MBEDTLS_RSA_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include "bignum.h"
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#include "md.h"
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#if defined(MBEDTLS_THREADING_C)
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#include "threading.h"
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#endif
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/*
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* RSA Error codes
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*/
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#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA -0x4080 /**< Bad input parameters to function. */
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#define MBEDTLS_ERR_RSA_INVALID_PADDING -0x4100 /**< Input data contains invalid padding and is rejected. */
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#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED -0x4180 /**< Something failed during generation of a key. */
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#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED -0x4200 /**< Key failed to pass the library's validity check. */
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#define MBEDTLS_ERR_RSA_PUBLIC_FAILED -0x4280 /**< The public key operation failed. */
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#define MBEDTLS_ERR_RSA_PRIVATE_FAILED -0x4300 /**< The private key operation failed. */
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#define MBEDTLS_ERR_RSA_VERIFY_FAILED -0x4380 /**< The PKCS#1 verification failed. */
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#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 /**< The output buffer for decryption is not large enough. */
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#define MBEDTLS_ERR_RSA_RNG_FAILED -0x4480 /**< The random generator failed to generate non-zeros. */
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/*
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* RSA constants
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*/
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#define MBEDTLS_RSA_PUBLIC 0
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#define MBEDTLS_RSA_PRIVATE 1
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#define MBEDTLS_RSA_PKCS_V15 0
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#define MBEDTLS_RSA_PKCS_V21 1
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#define MBEDTLS_RSA_SIGN 1
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#define MBEDTLS_RSA_CRYPT 2
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#define MBEDTLS_RSA_SALT_LEN_ANY -1
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/*
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* The above constants may be used even if the RSA module is compile out,
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* eg for alternative (PKCS#11) RSA implemenations in the PK layers.
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*/
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#if defined(MBEDTLS_RSA_C)
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief RSA context structure
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*/
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typedef struct
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{
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int ver; /*!< always 0 */
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size_t len; /*!< size(N) in chars */
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mbedtls_mpi N; /*!< public modulus */
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mbedtls_mpi E; /*!< public exponent */
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mbedtls_mpi D; /*!< private exponent */
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mbedtls_mpi P; /*!< 1st prime factor */
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mbedtls_mpi Q; /*!< 2nd prime factor */
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mbedtls_mpi DP; /*!< D % (P - 1) */
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mbedtls_mpi DQ; /*!< D % (Q - 1) */
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mbedtls_mpi QP; /*!< 1 / (Q % P) */
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mbedtls_mpi RN; /*!< cached R^2 mod N */
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mbedtls_mpi RP; /*!< cached R^2 mod P */
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mbedtls_mpi RQ; /*!< cached R^2 mod Q */
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mbedtls_mpi Vi; /*!< cached blinding value */
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mbedtls_mpi Vf; /*!< cached un-blinding value */
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int padding; /*!< MBEDTLS_RSA_PKCS_V15 for 1.5 padding and
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MBEDTLS_RSA_PKCS_v21 for OAEP/PSS */
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int hash_id; /*!< Hash identifier of mbedtls_md_type_t as
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specified in the mbedtls_md.h header file
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for the EME-OAEP and EMSA-PSS
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encoding */
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#if defined(MBEDTLS_THREADING_C)
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mbedtls_threading_mutex_t mutex; /*!< Thread-safety mutex */
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#endif
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}
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mbedtls_rsa_context;
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/**
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* \brief Initialize an RSA context
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*
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* Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP
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* encryption scheme and the RSASSA-PSS signature scheme.
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*
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* \param ctx RSA context to be initialized
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* \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
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* \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier
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*
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* \note The hash_id parameter is actually ignored
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* when using MBEDTLS_RSA_PKCS_V15 padding.
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*
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* \note Choice of padding mode is strictly enforced for private key
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* operations, since there might be security concerns in
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* mixing padding modes. For public key operations it's merely
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* a default value, which can be overriden by calling specific
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* rsa_rsaes_xxx or rsa_rsassa_xxx functions.
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*
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* \note The chosen hash is always used for OEAP encryption.
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* For PSS signatures, it's always used for making signatures,
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* but can be overriden (and always is, if set to
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* MBEDTLS_MD_NONE) for verifying them.
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*/
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void mbedtls_rsa_init( mbedtls_rsa_context *ctx,
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int padding,
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int hash_id);
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/**
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* \brief Set padding for an already initialized RSA context
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* See \c mbedtls_rsa_init() for details.
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*
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* \param ctx RSA context to be set
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* \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
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* \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier
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*/
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void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id);
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/**
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* \brief Generate an RSA keypair
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*
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* \param ctx RSA context that will hold the key
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* \param f_rng RNG function
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* \param p_rng RNG parameter
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* \param nbits size of the public key in bits
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* \param exponent public exponent (e.g., 65537)
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*
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* \note mbedtls_rsa_init() must be called beforehand to setup
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* the RSA context.
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*/
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int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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unsigned int nbits, int exponent );
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/**
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* \brief Check a public RSA key
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*
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* \param ctx RSA context to be checked
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*/
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int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx );
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/**
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* \brief Check a private RSA key
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*
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* \param ctx RSA context to be checked
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*/
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int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx );
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/**
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* \brief Check a public-private RSA key pair.
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* Check each of the contexts, and make sure they match.
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*
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* \param pub RSA context holding the public key
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* \param prv RSA context holding the private key
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*/
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int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv );
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/**
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* \brief Do an RSA public key operation
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*
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* \param ctx RSA context
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* \param input input buffer
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* \param output output buffer
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note This function does NOT take care of message
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* padding. Also, be sure to set input[0] = 0 or assure that
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* input is smaller than N.
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*
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* \note The input and output buffers must be large
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* enough (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_public( mbedtls_rsa_context *ctx,
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const unsigned char *input,
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unsigned char *output );
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/**
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* \brief Do an RSA private key operation
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for blinding)
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* \param p_rng RNG parameter
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* \param input input buffer
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* \param output output buffer
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The input and output buffers must be large
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* enough (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_private( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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const unsigned char *input,
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unsigned char *output );
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/**
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* \brief Generic wrapper to perform a PKCS#1 encryption using the
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* mode from the context. Add the message padding, then do an
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* RSA operation.
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding
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* and MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param ilen contains the plaintext length
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* \param input buffer holding the data to be encrypted
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* \param output buffer that will hold the ciphertext
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode, size_t ilen,
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const unsigned char *input,
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unsigned char *output );
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/**
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* \brief Perform a PKCS#1 v1.5 encryption (RSAES-PKCS1-v1_5-ENCRYPT)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for padding and MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param ilen contains the plaintext length
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* \param input buffer holding the data to be encrypted
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* \param output buffer that will hold the ciphertext
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode, size_t ilen,
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const unsigned char *input,
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unsigned char *output );
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/**
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* \brief Perform a PKCS#1 v2.1 OAEP encryption (RSAES-OAEP-ENCRYPT)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding
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* and MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param label buffer holding the custom label to use
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* \param label_len contains the label length
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* \param ilen contains the plaintext length
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* \param input buffer holding the data to be encrypted
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* \param output buffer that will hold the ciphertext
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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const unsigned char *label, size_t label_len,
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size_t ilen,
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const unsigned char *input,
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unsigned char *output );
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/**
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* \brief Generic wrapper to perform a PKCS#1 decryption using the
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* mode from the context. Do an RSA operation, then remove
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* the message padding
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param olen will contain the plaintext length
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* \param input buffer holding the encrypted data
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* \param output buffer that will hold the plaintext
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* \param output_max_len maximum length of the output buffer
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
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* an error is thrown.
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*/
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int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode, size_t *olen,
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const unsigned char *input,
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unsigned char *output,
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size_t output_max_len );
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/**
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* \brief Perform a PKCS#1 v1.5 decryption (RSAES-PKCS1-v1_5-DECRYPT)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param olen will contain the plaintext length
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* \param input buffer holding the encrypted data
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* \param output buffer that will hold the plaintext
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* \param output_max_len maximum length of the output buffer
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
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* an error is thrown.
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*/
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int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode, size_t *olen,
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const unsigned char *input,
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unsigned char *output,
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size_t output_max_len );
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/**
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* \brief Perform a PKCS#1 v2.1 OAEP decryption (RSAES-OAEP-DECRYPT)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param label buffer holding the custom label to use
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* \param label_len contains the label length
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* \param olen will contain the plaintext length
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* \param input buffer holding the encrypted data
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* \param output buffer that will hold the plaintext
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* \param output_max_len maximum length of the output buffer
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*
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* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The output buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
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* an error is thrown.
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*/
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int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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const unsigned char *label, size_t label_len,
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size_t *olen,
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const unsigned char *input,
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unsigned char *output,
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size_t output_max_len );
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/**
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* \brief Generic wrapper to perform a PKCS#1 signature using the
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* mode from the context. Do a private RSA operation to sign
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* a message digest
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for
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* MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
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* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
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* \param hash buffer holding the message digest
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* \param sig buffer that will hold the ciphertext
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*
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* \return 0 if the signing operation was successful,
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* or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The "sig" buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*
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* \note In case of PKCS#1 v2.1 encoding, see comments on
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* \note \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id.
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*/
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int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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mbedtls_md_type_t md_alg,
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unsigned int hashlen,
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const unsigned char *hash,
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unsigned char *sig );
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/**
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* \brief Perform a PKCS#1 v1.5 signature (RSASSA-PKCS1-v1_5-SIGN)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
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* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
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* \param hash buffer holding the message digest
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* \param sig buffer that will hold the ciphertext
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*
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* \return 0 if the signing operation was successful,
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* or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The "sig" buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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mbedtls_md_type_t md_alg,
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unsigned int hashlen,
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const unsigned char *hash,
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unsigned char *sig );
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/**
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* \brief Perform a PKCS#1 v2.1 PSS signature (RSASSA-PSS-SIGN)
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*
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* \param ctx RSA context
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* \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for
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* MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
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* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
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* \param hash buffer holding the message digest
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* \param sig buffer that will hold the ciphertext
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*
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* \return 0 if the signing operation was successful,
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* or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The "sig" buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*
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* \note The hash_id in the RSA context is the one used for the
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* encoding. md_alg in the function call is the type of hash
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* that is encoded. According to RFC 3447 it is advised to
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* keep both hashes the same.
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*/
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int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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mbedtls_md_type_t md_alg,
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unsigned int hashlen,
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const unsigned char *hash,
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unsigned char *sig );
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/**
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* \brief Generic wrapper to perform a PKCS#1 verification using the
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* mode from the context. Do a public RSA operation and check
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* the message digest
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*
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* \param ctx points to an RSA public key
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
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* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
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* \param hash buffer holding the message digest
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* \param sig buffer holding the ciphertext
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*
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* \return 0 if the verify operation was successful,
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* or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The "sig" buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*
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* \note In case of PKCS#1 v2.1 encoding, see comments on
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* \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id.
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*/
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int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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mbedtls_md_type_t md_alg,
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unsigned int hashlen,
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const unsigned char *hash,
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const unsigned char *sig );
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/**
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* \brief Perform a PKCS#1 v1.5 verification (RSASSA-PKCS1-v1_5-VERIFY)
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*
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* \param ctx points to an RSA public key
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* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
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* \param p_rng RNG parameter
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* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
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* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
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* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
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* \param hash buffer holding the message digest
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* \param sig buffer holding the ciphertext
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*
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* \return 0 if the verify operation was successful,
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* or an MBEDTLS_ERR_RSA_XXX error code
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*
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* \note The "sig" buffer must be as large as the size
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* of ctx->N (eg. 128 bytes if RSA-1024 is used).
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*/
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int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng,
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int mode,
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|
mbedtls_md_type_t md_alg,
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|
unsigned int hashlen,
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const unsigned char *hash,
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|
const unsigned char *sig );
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|
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|
/**
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* \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY)
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* (This is the "simple" version.)
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*
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|
* \param ctx points to an RSA public key
|
|
* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
|
|
* \param p_rng RNG parameter
|
|
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
|
|
* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
|
|
* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
|
|
* \param hash buffer holding the message digest
|
|
* \param sig buffer holding the ciphertext
|
|
*
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|
* \return 0 if the verify operation was successful,
|
|
* or an MBEDTLS_ERR_RSA_XXX error code
|
|
*
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|
* \note The "sig" buffer must be as large as the size
|
|
* of ctx->N (eg. 128 bytes if RSA-1024 is used).
|
|
*
|
|
* \note The hash_id in the RSA context is the one used for the
|
|
* verification. md_alg in the function call is the type of
|
|
* hash that is verified. According to RFC 3447 it is advised to
|
|
* keep both hashes the same. If hash_id in the RSA context is
|
|
* unset, the md_alg from the function call is used.
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|
*/
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|
int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx,
|
|
int (*f_rng)(void *, unsigned char *, size_t),
|
|
void *p_rng,
|
|
int mode,
|
|
mbedtls_md_type_t md_alg,
|
|
unsigned int hashlen,
|
|
const unsigned char *hash,
|
|
const unsigned char *sig );
|
|
|
|
/**
|
|
* \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY)
|
|
* (This is the version with "full" options.)
|
|
*
|
|
* \param ctx points to an RSA public key
|
|
* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
|
|
* \param p_rng RNG parameter
|
|
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
|
|
* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
|
|
* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
|
|
* \param hash buffer holding the message digest
|
|
* \param mgf1_hash_id message digest used for mask generation
|
|
* \param expected_salt_len Length of the salt used in padding, use
|
|
* MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length
|
|
* \param sig buffer holding the ciphertext
|
|
*
|
|
* \return 0 if the verify operation was successful,
|
|
* or an MBEDTLS_ERR_RSA_XXX error code
|
|
*
|
|
* \note The "sig" buffer must be as large as the size
|
|
* of ctx->N (eg. 128 bytes if RSA-1024 is used).
|
|
*
|
|
* \note The hash_id in the RSA context is ignored.
|
|
*/
|
|
int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx,
|
|
int (*f_rng)(void *, unsigned char *, size_t),
|
|
void *p_rng,
|
|
int mode,
|
|
mbedtls_md_type_t md_alg,
|
|
unsigned int hashlen,
|
|
const unsigned char *hash,
|
|
mbedtls_md_type_t mgf1_hash_id,
|
|
int expected_salt_len,
|
|
const unsigned char *sig );
|
|
|
|
/**
|
|
* \brief Copy the components of an RSA context
|
|
*
|
|
* \param dst Destination context
|
|
* \param src Source context
|
|
*
|
|
* \return 0 on success,
|
|
* MBEDTLS_ERR_MPI_ALLOC_FAILED on memory allocation failure
|
|
*/
|
|
int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src );
|
|
|
|
/**
|
|
* \brief Free the components of an RSA key
|
|
*
|
|
* \param ctx RSA Context to free
|
|
*/
|
|
void mbedtls_rsa_free( mbedtls_rsa_context *ctx );
|
|
|
|
/**
|
|
* \brief Checkup routine
|
|
*
|
|
* \return 0 if successful, or 1 if the test failed
|
|
*/
|
|
int mbedtls_rsa_self_test( int verbose );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* MBEDTLS_RSA_C */
|
|
|
|
#endif /* rsa.h */
|