| /* |
| * aes_gcm.h |
| * |
| * Header for AES Galois Counter Mode. |
| * |
| * John A. Foley |
| * Cisco Systems, Inc. |
| * |
| */ |
| /* |
| * |
| * Copyright (c) 2013-2017, Cisco Systems, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 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. |
| * |
| * Neither the name of the Cisco Systems, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 |
| * COPYRIGHT HOLDERS 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. |
| * |
| */ |
| |
| #ifndef AES_GCM_H |
| #define AES_GCM_H |
| |
| #include "cipher.h" |
| #include "srtp.h" |
| #include "datatypes.h" |
| |
| #ifdef OPENSSL |
| |
| #include <openssl/evp.h> |
| #include <openssl/aes.h> |
| |
| typedef struct { |
| int key_size; |
| int tag_len; |
| EVP_CIPHER_CTX *ctx; |
| srtp_cipher_direction_t dir; |
| } srtp_aes_gcm_ctx_t; |
| |
| #endif /* OPENSSL */ |
| |
| #ifdef NSS |
| |
| #include <pk11pub.h> |
| |
| #define MAX_AD_SIZE 2048 |
| |
| typedef struct { |
| int key_size; |
| int tag_size; |
| srtp_cipher_direction_t dir; |
| PK11SymKey *key; |
| uint8_t iv[12]; |
| uint8_t aad[MAX_AD_SIZE]; |
| int aad_size; |
| CK_GCM_PARAMS params; |
| uint8_t tag[16]; |
| } srtp_aes_gcm_ctx_t; |
| |
| #endif /* NSS */ |
| |
| #endif /* AES_GCM_H */ |