Tags: zcc0077/srtp
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Added support for NULL ciphers Added support for NULL ciphers. When they are used, created SRTP and SRTCP packets are authenticated only (no encryption). Received SRTP/SRTCP packets are checked if their authentication tag is valid, and extra SRTP protocol fields are removed before returning then to application. Fixed processing of SRTCP packets with E (encryption) bit cleared, previously duplicate check and tag valiation was not performed, and whole packet was returned as-is (with extra fields) from decryptRTCP. Use of NULL ciphers can be enabled independently for SRTP and SRTCP using SRTPNoEncryption and SRTCPNoEncryption options. They can be used with key exchange protocols which allows to configure them separately. Added support for SRTP_NULL_HMAC_SHA1_80 and SRTP_NULL_HMAC_SHA1_32 cipher suites. They use key and salt of the same length as AES_CM_128 ones. Added new tests to verify test vectors from RFCs.
Added support for NULL ciphers Added support for NULL ciphers. When they are used, created SRTP and SRTCP packets are authenticated only (no encryption). Received SRTP/SRTCP packets are checked if their authentication tag is valid, and extra SRTP protocol fields are removed before returning then to application. Fixed processing of SRTCP packets with E (encryption) bit cleared, previously duplicate check and tag valiation was not performed, and whole packet was returned as-is (with extra fields) from decryptRTCP. Use of NULL ciphers can be enabled independently for SRTP and SRTCP using SRTPNoEncryption and SRTCPNoEncryption options. They can be used with key exchange protocols which allows to configure them separately. Added support for SRTP_NULL_HMAC_SHA1_80 and SRTP_NULL_HMAC_SHA1_32 cipher suites. They use key and salt of the same length as AES_CM_128 ones. Added new tests to verify test vectors from RFCs.
New SRTP cipher test suite Moved tests from srtp_cipher_aead_aes_gcm_test.go to new file, cleaned up their code to make it more DRY. Added tests for AES CM ciphers there too. This new cipher test suite will make it easier to add tests for new SRTP features without lots of copy/paste.
Fix packet length validation, new cipher tests This is v2 CP of two commits from master: Fix packet length validation Missing packet length validations could cause crash. New SRTP cipher test suite Moved tests from srtp_cipher_aead_aes_gcm_test.go to new file, cleaned up their code to make it more DRY. Added tests for AES CM ciphers there too. This new cipher test suite will make it easier to add tests for new SRTP features without lots of copy/paste.
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