+++ /dev/null
-/**
- * \file rsa.h
- *
- * \brief The RSA public-key cryptosystem
- *
- * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- * SPDX-License-Identifier: GPL-2.0
- *
- * This program 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.
- *
- * This program 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 02110-1301 USA.
- *
- * This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_RSA_H
-#define MBEDTLS_RSA_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "bignum.h"
-#include "md.h"
-
-#if defined(MBEDTLS_THREADING_C)
-#include "threading.h"
-#endif
-
-/*
- * RSA Error codes
- */
-#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA -0x4080 /**< Bad input parameters to function. */
-#define MBEDTLS_ERR_RSA_INVALID_PADDING -0x4100 /**< Input data contains invalid padding and is rejected. */
-#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED -0x4180 /**< Something failed during generation of a key. */
-#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED -0x4200 /**< Key failed to pass the library's validity check. */
-#define MBEDTLS_ERR_RSA_PUBLIC_FAILED -0x4280 /**< The public key operation failed. */
-#define MBEDTLS_ERR_RSA_PRIVATE_FAILED -0x4300 /**< The private key operation failed. */
-#define MBEDTLS_ERR_RSA_VERIFY_FAILED -0x4380 /**< The PKCS#1 verification failed. */
-#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 /**< The output buffer for decryption is not large enough. */
-#define MBEDTLS_ERR_RSA_RNG_FAILED -0x4480 /**< The random generator failed to generate non-zeros. */
-
-/*
- * RSA constants
- */
-#define MBEDTLS_RSA_PUBLIC 0
-#define MBEDTLS_RSA_PRIVATE 1
-
-#define MBEDTLS_RSA_PKCS_V15 0
-#define MBEDTLS_RSA_PKCS_V21 1
-
-#define MBEDTLS_RSA_SIGN 1
-#define MBEDTLS_RSA_CRYPT 2
-
-#define MBEDTLS_RSA_SALT_LEN_ANY -1
-
-/*
- * The above constants may be used even if the RSA module is compile out,
- * eg for alternative (PKCS#11) RSA implemenations in the PK layers.
- */
-#if defined(MBEDTLS_RSA_C)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief RSA context structure
- */
-typedef struct
-{
- int ver; /*!< always 0 */
- size_t len; /*!< size(N) in chars */
-
- mbedtls_mpi N; /*!< public modulus */
- mbedtls_mpi E; /*!< public exponent */
-
- mbedtls_mpi D; /*!< private exponent */
- mbedtls_mpi P; /*!< 1st prime factor */
- mbedtls_mpi Q; /*!< 2nd prime factor */
- mbedtls_mpi DP; /*!< D % (P - 1) */
- mbedtls_mpi DQ; /*!< D % (Q - 1) */
- mbedtls_mpi QP; /*!< 1 / (Q % P) */
-
- mbedtls_mpi RN; /*!< cached R^2 mod N */
- mbedtls_mpi RP; /*!< cached R^2 mod P */
- mbedtls_mpi RQ; /*!< cached R^2 mod Q */
-
- mbedtls_mpi Vi; /*!< cached blinding value */
- mbedtls_mpi Vf; /*!< cached un-blinding value */
-
- int padding; /*!< MBEDTLS_RSA_PKCS_V15 for 1.5 padding and
- MBEDTLS_RSA_PKCS_v21 for OAEP/PSS */
- int hash_id; /*!< Hash identifier of mbedtls_md_type_t as
- specified in the mbedtls_md.h header file
- for the EME-OAEP and EMSA-PSS
- encoding */
-#if defined(MBEDTLS_THREADING_C)
- mbedtls_threading_mutex_t mutex; /*!< Thread-safety mutex */
-#endif
-}
-mbedtls_rsa_context;
-
-/**
- * \brief Initialize an RSA context
- *
- * Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP
- * encryption scheme and the RSASSA-PSS signature scheme.
- *
- * \param ctx RSA context to be initialized
- * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
- * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier
- *
- * \note The hash_id parameter is actually ignored
- * when using MBEDTLS_RSA_PKCS_V15 padding.
- *
- * \note Choice of padding mode is strictly enforced for private key
- * operations, since there might be security concerns in
- * mixing padding modes. For public key operations it's merely
- * a default value, which can be overriden by calling specific
- * rsa_rsaes_xxx or rsa_rsassa_xxx functions.
- *
- * \note The chosen hash is always used for OEAP encryption.
- * For PSS signatures, it's always used for making signatures,
- * but can be overriden (and always is, if set to
- * MBEDTLS_MD_NONE) for verifying them.
- */
-void mbedtls_rsa_init( mbedtls_rsa_context *ctx,
- int padding,
- int hash_id);
-
-/**
- * \brief Set padding for an already initialized RSA context
- * See \c mbedtls_rsa_init() for details.
- *
- * \param ctx RSA context to be set
- * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
- * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier
- */
-void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id);
-
-/**
- * \brief Generate an RSA keypair
- *
- * \param ctx RSA context that will hold the key
- * \param f_rng RNG function
- * \param p_rng RNG parameter
- * \param nbits size of the public key in bits
- * \param exponent public exponent (e.g., 65537)
- *
- * \note mbedtls_rsa_init() must be called beforehand to setup
- * the RSA context.
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- */
-int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- unsigned int nbits, int exponent );
-
-/**
- * \brief Check a public RSA key
- *
- * \param ctx RSA context to be checked
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- */
-int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx );
-
-/**
- * \brief Check a private RSA key
- *
- * \param ctx RSA context to be checked
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- */
-int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx );
-
-/**
- * \brief Check a public-private RSA key pair.
- * Check each of the contexts, and make sure they match.
- *
- * \param pub RSA context holding the public key
- * \param prv RSA context holding the private key
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- */
-int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv );
-
-/**
- * \brief Do an RSA public key operation
- *
- * \param ctx RSA context
- * \param input input buffer
- * \param output output buffer
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note This function does NOT take care of message
- * padding. Also, be sure to set input[0] = 0 or ensure that
- * input is smaller than N.
- *
- * \note The input and output buffers must be large
- * enough (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_public( mbedtls_rsa_context *ctx,
- const unsigned char *input,
- unsigned char *output );
-
-/**
- * \brief Do an RSA private key operation
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for blinding)
- * \param p_rng RNG parameter
- * \param input input buffer
- * \param output output buffer
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The input and output buffers must be large
- * enough (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_private( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- const unsigned char *input,
- unsigned char *output );
-
-/**
- * \brief Generic wrapper to perform a PKCS#1 encryption using the
- * mode from the context. Add the message padding, then do an
- * RSA operation.
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding
- * and MBEDTLS_RSA_PRIVATE)
- * \param p_rng RNG parameter
- * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
- * \param ilen contains the plaintext length
- * \param input buffer holding the data to be encrypted
- * \param output buffer that will hold the ciphertext
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode, size_t ilen,
- const unsigned char *input,
- unsigned char *output );
-
-/**
- * \brief Perform a PKCS#1 v1.5 encryption (RSAES-PKCS1-v1_5-ENCRYPT)
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for padding and MBEDTLS_RSA_PRIVATE)
- * \param p_rng RNG parameter
- * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
- * \param ilen contains the plaintext length
- * \param input buffer holding the data to be encrypted
- * \param output buffer that will hold the ciphertext
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode, size_t ilen,
- const unsigned char *input,
- unsigned char *output );
-
-/**
- * \brief Perform a PKCS#1 v2.1 OAEP encryption (RSAES-OAEP-ENCRYPT)
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding
- * and MBEDTLS_RSA_PRIVATE)
- * \param p_rng RNG parameter
- * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
- * \param label buffer holding the custom label to use
- * \param label_len contains the label length
- * \param ilen contains the plaintext length
- * \param input buffer holding the data to be encrypted
- * \param output buffer that will hold the ciphertext
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode,
- const unsigned char *label, size_t label_len,
- size_t ilen,
- const unsigned char *input,
- unsigned char *output );
-
-/**
- * \brief Generic wrapper to perform a PKCS#1 decryption using the
- * mode from the context. Do an RSA operation, then remove
- * the message padding
- *
- * \param ctx RSA context
- * \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 olen will contain the plaintext length
- * \param input buffer holding the encrypted data
- * \param output buffer that will hold the plaintext
- * \param output_max_len maximum length of the output buffer
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer length \c output_max_len should be
- * as large as the size ctx->len of ctx->N (eg. 128 bytes
- * if RSA-1024 is used) to be able to hold an arbitrary
- * decrypted message. If it is not large enough to hold
- * the decryption of the particular ciphertext provided,
- * the function will return MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE.
- *
- * \note The input buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode, size_t *olen,
- const unsigned char *input,
- unsigned char *output,
- size_t output_max_len );
-
-/**
- * \brief Perform a PKCS#1 v1.5 decryption (RSAES-PKCS1-v1_5-DECRYPT)
- *
- * \param ctx RSA context
- * \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 olen will contain the plaintext length
- * \param input buffer holding the encrypted data
- * \param output buffer that will hold the plaintext
- * \param output_max_len maximum length of the output buffer
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer length \c output_max_len should be
- * as large as the size ctx->len of ctx->N (eg. 128 bytes
- * if RSA-1024 is used) to be able to hold an arbitrary
- * decrypted message. If it is not large enough to hold
- * the decryption of the particular ciphertext provided,
- * the function will return MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE.
- *
- * \note The input buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode, size_t *olen,
- const unsigned char *input,
- unsigned char *output,
- size_t output_max_len );
-
-/**
- * \brief Perform a PKCS#1 v2.1 OAEP decryption (RSAES-OAEP-DECRYPT)
- *
- * \param ctx RSA context
- * \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 label buffer holding the custom label to use
- * \param label_len contains the label length
- * \param olen will contain the plaintext length
- * \param input buffer holding the encrypted data
- * \param output buffer that will hold the plaintext
- * \param output_max_len maximum length of the output buffer
- *
- * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note The output buffer length \c output_max_len should be
- * as large as the size ctx->len of ctx->N (eg. 128 bytes
- * if RSA-1024 is used) to be able to hold an arbitrary
- * decrypted message. If it is not large enough to hold
- * the decryption of the particular ciphertext provided,
- * the function will return MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE.
- *
- * \note The input buffer must be as large as the size
- * of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng,
- int mode,
- const unsigned char *label, size_t label_len,
- size_t *olen,
- const unsigned char *input,
- unsigned char *output,
- size_t output_max_len );
-
-/**
- * \brief Generic wrapper to perform a PKCS#1 signature using the
- * mode from the context. Do a private RSA operation to sign
- * a message digest
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and 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 that will hold the ciphertext
- *
- * \return 0 if the signing 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 In case of PKCS#1 v2.1 encoding, see comments on
- * \note \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id.
- */
-int mbedtls_rsa_pkcs1_sign( 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,
- unsigned char *sig );
-
-/**
- * \brief Perform a PKCS#1 v1.5 signature (RSASSA-PKCS1-v1_5-SIGN)
- *
- * \param ctx RSA context
- * \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 that will hold the ciphertext
- *
- * \return 0 if the signing 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).
- */
-int mbedtls_rsa_rsassa_pkcs1_v15_sign( 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,
- unsigned char *sig );
-
-/**
- * \brief Perform a PKCS#1 v2.1 PSS signature (RSASSA-PSS-SIGN)
- *
- * \param ctx RSA context
- * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and 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 that will hold the ciphertext
- *
- * \return 0 if the signing 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 the one used for the
- * encoding. md_alg in the function call is the type of hash
- * that is encoded. According to RFC 3447 it is advised to
- * keep both hashes the same.
- */
-int mbedtls_rsa_rsassa_pss_sign( 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,
- unsigned char *sig );
-
-/**
- * \brief Generic wrapper to perform a PKCS#1 verification using the
- * mode from the context. Do a public RSA operation and check
- * the message digest
- *
- * \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
- *
- * \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 In case of PKCS#1 v2.1 encoding, see comments on
- * \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id.
- */
-int mbedtls_rsa_pkcs1_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 v1.5 verification (RSASSA-PKCS1-v1_5-VERIFY)
- *
- * \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
- *
- * \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).
- */
-int mbedtls_rsa_rsassa_pkcs1_v15_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 "simple" version.)
- *
- * \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
- *
- * \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 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.
- */
-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 */
projects / reactos.git / blobdiff