In TLS1.3 can the client hello have the extensions which were not sent as part of HelloRetryRequest
I am having a Handshake session of PSK_only mode in TLS1.3 , where I use PSK’s established out of band.
consider, client Hello is sent with the extensions of supported_versions, PreSharedKey, psk_key_exchange_modes
Q1)If server sends a Hel…