Update libsrtp to version 2.0

crypto/include/crypto_types.h

+/*
+ * crypto_types.h
+ *
+ * constants for cipher types and auth func types
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *      
+ * Copyright(c) 2001-2006,2013 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 CRYPTO_TYPES_H
+#define 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 Integer Counter Mode (AES ICM)             
+ *
+ * AES ICM is the variant of counter mode that is used by Secure RTP.  
+ * This cipher uses a 16-, 24-, or 32-octet key concatenated with a
+ * 14-octet offset (or salt) value.
+ */
+#define SRTP_AES_ICM            1            
+
+/* 
+ * AES-128 Integer Counter Mode (AES ICM)             
+ * AES-128 ICM is a deprecated alternate name for AES ICM.
+ */
+#define SRTP_AES_128_ICM        SRTP_AES_ICM
+
+/* 
+ * AES-192 Integer Counter Mode (AES ICM)             
+ * AES-192 ICM is a deprecated alternate name for AES ICM.
+ */
+#define SRTP_AES_192_ICM        4 
+
+/* 
+ * AES-256 Integer Counter Mode (AES ICM)             
+ * AES-256 ICM is a deprecated alternate name for AES ICM.
+ */
+#define SRTP_AES_256_ICM        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_128_GCM        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_256_GCM        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  /* CRYPTO_TYPES_H */