Doing some OpenSSL 1.1 pre-2 tests between a client and a server I got :
client : error:141600F4:SSL routines:read_state_machine:unexpected message
server : error:140943F2:SSL routines:ssl3_read_bytes:reason(1010); SSL alert number 10
As I read somewhere that this alert should never be observed between proper implementations, I thought best to report it.
What I did :
Neither client or server context was initialisied with certificates or key.
(I wanted to test anonymous ciphers)
But I erroneously used SSL_CTX_set_verify() with SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
Let me know if you need more informations.