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Add support for 16-byte auth tag for AES GCM mode.

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jfigus
2014-05-08 13:34:53 -04:00
committed by Travis Cross
parent b9da5149e2
commit 024162cfc9
15 changed files with 275 additions and 39 deletions
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48
libs/srtp/include/srtp.h
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@@ -798,6 +798,54 @@ crypto_policy_set_aes_gcm_128_8_only_auth(crypto_policy_t *p);
void
crypto_policy_set_aes_gcm_256_8_only_auth(crypto_policy_t *p);
/**
* @brief crypto_policy_set_aes_gcm_128_16_auth() sets a crypto
* policy structure to an AEAD encryption policy.
*
* @param p is a pointer to the policy structure to be set
*
* The function call crypto_policy_set_aes_gcm_128_16_auth(&p) sets
* the crypto_policy_t at location p to use the SRTP default cipher
* (AES-128 Galois Counter Mode) with 16 octet auth tag. This
* policy applies confidentiality and authentication to both the
* RTP and RTCP packets.
*
* This function is a convenience that helps to avoid dealing directly
* with the policy data structure. You are encouraged to initialize
* policy elements with this function call. Doing so may allow your
* code to be forward compatible with later versions of libSRTP that
* include more elements in the crypto_policy_t datatype.
*
* @return void.
*
*/
void
crypto_policy_set_aes_gcm_128_16_auth(crypto_policy_t *p);
/**
* @brief crypto_policy_set_aes_gcm_256_16_auth() sets a crypto
* policy structure to an AEAD encryption policy
*
* @param p is a pointer to the policy structure to be set
*
* The function call crypto_policy_set_aes_gcm_256_16_auth(&p) sets
* the crypto_policy_t at location p to use the SRTP default cipher
* (AES-256 Galois Counter Mode) with 16 octet auth tag. This
* policy applies confidentiality and authentication to both the
* RTP and RTCP packets.
*
* This function is a convenience that helps to avoid dealing directly
* with the policy data structure. You are encouraged to initialize
* policy elements with this function call. Doing so may allow your
* code to be forward compatible with later versions of libSRTP that
* include more elements in the crypto_policy_t datatype.
*
* @return void.
*
*/
void
crypto_policy_set_aes_gcm_256_16_auth(crypto_policy_t *p);
/**
* @brief srtp_dealloc() deallocates storage for an SRTP session