in src/states.js [267:280]
async recvHandshakeMessage(msg) {
// We don't make use of any encrypted extensions, but we still
// have to wait for the server to send the (empty) list of them.
if (! (msg instanceof EncryptedExtensions)) {
throw new TLSError(ALERT_DESCRIPTION.UNEXPECTED_MESSAGE);
}
// We do not support any EncryptedExtensions.
if (msg.extensions.size !== 0) {
throw new TLSError(ALERT_DESCRIPTION.UNSUPPORTED_EXTENSION);
}
const keyschedule = this.conn._keyschedule;
const serverFinishedTranscript = keyschedule.getTranscript();
await this.conn._transition(CLIENT_WAIT_FINISHED, serverFinishedTranscript);
}