text: /**
   * @file re_srtp.h Secure Real-time Transport Protocol (SRTP)
   *
   * Copyright (C) 2010 Creytiv.com
   */
  
  
  enum srtp_suite {
  	SRTP_AES_CM_128_HMAC_SHA1_32,
  	SRTP_AES_CM_128_HMAC_SHA1_80,
  	SRTP_AES_256_CM_HMAC_SHA1_32,
  	SRTP_AES_256_CM_HMAC_SHA1_80,
  	SRTP_AES_128_GCM,
  	SRTP_AES_256_GCM,
  };
  
  enum srtp_flags {
  	SRTP_UNENCRYPTED_SRTCP = 1<<1,
  };
  
  struct srtp;
  
  int srtp_alloc(struct srtp **srtpp, enum srtp_suite suite,
  	       const uint8_t *key, size_t key_bytes, int flags);
  int srtp_encrypt(struct srtp *srtp, struct mbuf *mb);
  int srtp_decrypt(struct srtp *srtp, struct mbuf *mb);
  int srtcp_encrypt(struct srtp *srtp, struct mbuf *mb);
  int srtcp_decrypt(struct srtp *srtp, struct mbuf *mb);
  
  const char *srtp_suite_name(enum srtp_suite suite);
  