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// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <contrib/restricted/google/boringssl/include/openssl/cipher.h>
#include <assert.h>
#include <string.h>
#include <contrib/restricted/google/boringssl/include/openssl/err.h>
#include <contrib/restricted/google/boringssl/include/openssl/mem.h>
#include <contrib/restricted/google/boringssl/include/openssl/nid.h>
#include "internal.h"
#include "../internal.h"
static const struct {
int nid;
const char *name;
const EVP_CIPHER *(*func)();
} 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 (const auto &cipher : kCiphers) {
if (cipher.nid == nid) {
return cipher.func();
}
}
return nullptr;
}
const EVP_CIPHER *EVP_get_cipherbyname(const char *name) {
if (name == nullptr) {
return nullptr;
}
// 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 (const auto &cipher : kCiphers) {
if (OPENSSL_strcasecmp(cipher.name, name) == 0) {
return cipher.func();
}
}
return nullptr;
}
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