[asterisk-bugs] [JIRA] (ASTERISK-22832) Support AES-GCM mode in SRTP

[Kristian Kielhofner (JIRA)]

Kristian Kielhofner created ASTERISK-22832:
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             Summary: Support AES-GCM mode in SRTP
                 Key: ASTERISK-22832
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22832
             Project: Asterisk
          Issue Type: Improvement
      Security Level: None
          Components: Channels/chan_sip/SRTP
    Affects Versions: SVN
         Environment: Linux x86_64
            Reporter: Kristian Kielhofner
            Severity: Minor
         Attachments: asterisk_gcm.patch

There is a version of libsrtp that supports AES-NI and AES-GCM mode:

https://github.com/cisco/libsrtp/pull/34

More on AES-GCM mode:

http://tools.ietf.org/html/draft-ietf-avtcore-srtp-aes-gcm-10

https://crypto.stanford.edu/RealWorldCrypto/slides/gueron.pdf

AES-GCM mode improves the performance of SRTP on systems with and without support for the AES-NI instruction set.

Performance test results pending.

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