| /* |
| * crypto_types.h |
| * |
| * constants for cipher types and auth func types |
| * |
| * David A. McGrew |
| * Cisco Systems, Inc. |
| */ |
| /* |
| * |
| * Copyright(c) 2001-2017 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 SRTP_CRYPTO_TYPES_H |
| #define SRTP_CRYPTO_TYPES_H |
| |
| /* |
| * The null cipher performs no encryption. |
| * |
| * The SRTP_NULL_CIPHER leaves its inputs unaltered, during both the |
| * encryption and decryption operations. This cipher can be chosen |
| * to indicate that no encryption is to be performed. |
| */ |
| #define SRTP_NULL_CIPHER 0 |
| |
| /* |
| * AES-128 Integer Counter Mode (AES ICM) |
| * |
| * AES-128 ICM is the variant of counter mode that is used by |
| * Secure RTP. This cipher uses a 16-octet key concatenated with a |
| * 14-octet offset (or salt) value. |
| */ |
| #define SRTP_AES_ICM_128 1 |
| |
| /* |
| * AES-192 Integer Counter Mode (AES ICM) |
| * |
| * AES-128 ICM is the variant of counter mode that is used by |
| * Secure RTP. This cipher uses a 24-octet key concatenated with a |
| * 14-octet offset (or salt) value. |
| */ |
| #define SRTP_AES_ICM_192 4 |
| |
| /* |
| * AES-256 Integer Counter Mode (AES ICM) |
| * |
| * AES-128 ICM is the variant of counter mode that is used by |
| * Secure RTP. This cipher uses a 32-octet key concatenated with a |
| * 14-octet offset (or salt) value. |
| */ |
| #define SRTP_AES_ICM_256 5 |
| |
| /* |
| * AES-128_GCM Galois Counter Mode (AES GCM) |
| * |
| * AES-128 GCM is the variant of galois counter mode that is used by |
| * Secure RTP. This cipher uses a 16-octet key. |
| */ |
| #define SRTP_AES_GCM_128 6 |
| |
| /* |
| * AES-256_GCM Galois Counter Mode (AES GCM) |
| * |
| * AES-256 GCM is the variant of galois counter mode that is used by |
| * Secure RTP. This cipher uses a 32-octet key. |
| */ |
| #define SRTP_AES_GCM_256 7 |
| |
| /* |
| * The null authentication function performs no authentication. |
| * |
| * The NULL_AUTH function does nothing, and can be selected to indicate |
| * that authentication should not be performed. |
| */ |
| #define SRTP_NULL_AUTH 0 |
| |
| /* |
| * HMAC-SHA1 |
| * |
| * SRTP_HMAC_SHA1 implements the Hash-based MAC using the NIST Secure |
| * Hash Algorithm version 1 (SHA1). |
| */ |
| #define SRTP_HMAC_SHA1 3 |
| |
| #endif /* SRTP_CRYPTO_TYPES_H */ |