Scanning for SRP

[ic0ns]

From the RFC:

2.5.1.2. Missing SRP Extension

The client may offer SRP cipher suites in the hello message but omit
the SRP extension. If the server would like to select an SRP cipher
suite in this case, the server SHOULD return a fatal
"unknown_psk_identity" alert (see Section 2.9) immediately after
processing the client hello message.