ref: bfe9da47cfa2f51ebef78c59332b5ba2deba306d
dir: /third_party/boringssl/src/crypto/cipher_extra/cipher_extra.c/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <openssl/cipher.h>
#include <assert.h>
#include <string.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/nid.h>
#include "internal.h"
#include "../internal.h"
static const struct {
int nid;
const char *name;
const EVP_CIPHER *(*func)(void);
} kCiphers[] = {
{NID_aes_128_cbc, "aes-128-cbc", EVP_aes_128_cbc},
{NID_aes_128_ctr, "aes-128-ctr", EVP_aes_128_ctr},
{NID_aes_128_ecb, "aes-128-ecb", EVP_aes_128_ecb},
{NID_aes_128_gcm, "aes-128-gcm", EVP_aes_128_gcm},
{NID_aes_128_ofb128, "aes-128-ofb", EVP_aes_128_ofb},
{NID_aes_192_cbc, "aes-192-cbc", EVP_aes_192_cbc},
{NID_aes_192_ctr, "aes-192-ctr", EVP_aes_192_ctr},
{NID_aes_192_ecb, "aes-192-ecb", EVP_aes_192_ecb},
{NID_aes_192_gcm, "aes-192-gcm", EVP_aes_192_gcm},
{NID_aes_192_ofb128, "aes-192-ofb", EVP_aes_192_ofb},
{NID_aes_256_cbc, "aes-256-cbc", EVP_aes_256_cbc},
{NID_aes_256_ctr, "aes-256-ctr", EVP_aes_256_ctr},
{NID_aes_256_ecb, "aes-256-ecb", EVP_aes_256_ecb},
{NID_aes_256_gcm, "aes-256-gcm", EVP_aes_256_gcm},
{NID_aes_256_ofb128, "aes-256-ofb", EVP_aes_256_ofb},
{NID_des_cbc, "des-cbc", EVP_des_cbc},
{NID_des_ecb, "des-ecb", EVP_des_ecb},
{NID_des_ede_cbc, "des-ede-cbc", EVP_des_ede_cbc},
{NID_des_ede_ecb, "des-ede", EVP_des_ede},
{NID_des_ede3_cbc, "des-ede3-cbc", EVP_des_ede3_cbc},
{NID_rc2_cbc, "rc2-cbc", EVP_rc2_cbc},
{NID_rc4, "rc4", EVP_rc4},
};
const EVP_CIPHER *EVP_get_cipherbynid(int nid) {
for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kCiphers); i++) {
if (kCiphers[i].nid == nid) {
return kCiphers[i].func();
}
}
return NULL;
}
const EVP_CIPHER *EVP_get_cipherbyname(const char *name) {
if (name == NULL) {
return NULL;
}
// This is not a name used by OpenSSL, but tcpdump registers it with
// |EVP_add_cipher_alias|. Our |EVP_add_cipher_alias| is a no-op, so we
// support the name here.
if (OPENSSL_strcasecmp(name, "3des") == 0) {
name = "des-ede3-cbc";
}
for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kCiphers); i++) {
if (OPENSSL_strcasecmp(kCiphers[i].name, name) == 0) {
return kCiphers[i].func();
}
}
return NULL;
}