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iv length is constant so set only once #649

Merged
merged 1 commit into from
May 3, 2023
Merged

iv length is constant so set only once #649

merged 1 commit into from
May 3, 2023

Commits on Apr 3, 2023

  1. iv length is constant so set only once 

    The iv length is preserved inside the EVP_CIPHER_CTX
so no need to set more than once.
This is especially important with OpenSSL 3 where setting the iv len is a expensive
operation due to param lookup code inside of OpenSSL.

This should help Performance issue with OpennSSL 3 and libsrtp with cisco#645 in the case of GCM
but does not fix all of the performance issues.
    @pabuhler
    pabuhler committed Apr 3, 2023
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