chromium/third_party/boringssl/src/crypto/cipher_extra/tls_cbc.c

/* ====================================================================
 * Copyright (c) 2012 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
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 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    [email protected].
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
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 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
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 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * ([email protected]).  This product includes software written by Tim
 * Hudson ([email protected]). */

#include <assert.h>
#include <string.h>

#include <openssl/digest.h>
#include <openssl/nid.h>
#include <openssl/sha.h>

#include "../internal.h"
#include "internal.h"
#include "../fipsmodule/cipher/internal.h"


int EVP_tls_cbc_remove_padding(crypto_word_t *out_padding_ok, size_t *out_len,
                               const uint8_t *in, size_t in_len,
                               size_t block_size, size_t mac_size) { … }

void EVP_tls_cbc_copy_mac(uint8_t *out, size_t md_size, const uint8_t *in,
                          size_t in_len, size_t orig_len) { … }

int EVP_sha1_final_with_secret_suffix(SHA_CTX *ctx,
                                      uint8_t out[SHA_DIGEST_LENGTH],
                                      const uint8_t *in, size_t len,
                                      size_t max_len) { … }

int EVP_sha256_final_with_secret_suffix(SHA256_CTX *ctx,
                                        uint8_t out[SHA256_DIGEST_LENGTH],
                                        const uint8_t *in, size_t len,
                                        size_t max_len) { … }

int EVP_tls_cbc_record_digest_supported(const EVP_MD *md) { … }

static int tls_cbc_digest_record_sha1(uint8_t *md_out, size_t *md_out_size,
                                      const uint8_t header[13],
                                      const uint8_t *data, size_t data_size,
                                      size_t data_plus_mac_plus_padding_size,
                                      const uint8_t *mac_secret,
                                      unsigned mac_secret_length) { … }

static int tls_cbc_digest_record_sha256(uint8_t *md_out, size_t *md_out_size,
                                        const uint8_t header[13],
                                        const uint8_t *data, size_t data_size,
                                        size_t data_plus_mac_plus_padding_size,
                                        const uint8_t *mac_secret,
                                        unsigned mac_secret_length) { … }

int EVP_tls_cbc_digest_record(const EVP_MD *md, uint8_t *md_out,
                              size_t *md_out_size, const uint8_t header[13],
                              const uint8_t *data, size_t data_size,
                              size_t data_plus_mac_plus_padding_size,
                              const uint8_t *mac_secret,
                              unsigned mac_secret_length) { … }