Hope you all are doing well. I am trying to set parameters like passphrase and latency in srt url. But, i need to know whether while setting passphrase parameter, is it necessary to set pbkeylen value also? If yes, then what is purpose of pbkeylen parameter in passphrase? or what is role in that srt url of pbkeylen? Thank you.
As described in the documentation, pbkeylen defines the key size used for the AES encryption. It is independent of the passphrase.
It is not necessary to set it - it will default to 16 bytes (128 bit), or whatever the other end of the connection sends in the handshake if it has been set there.