On Mon, Oct 15, 2018, Viktor Dukhovni wrote: > With TLS 1.3, you suddenly have clients optionally soliciting certificates > by specific CA from servers [[...]] > With 149 certs, and typical CA names O(80) bytes, we're looking at > ~12KB of cert names, which should fit into an extension that can be > up to 64KB in size. So overflowing the extension size limit would I'm a bit confused why this happens -- the OpenSSL documentation states: ------------------------------------------------------------ SSL_CTX_set_client_CA_list() sets the list of CAs sent to the client when requesting a client certificate for ctx. Ownership of list is ... ------------------------------------------------------------ Does SSL_CTX_set_client_CA_list() also set the list of CAs sent by the client (a brief look at the source code seems to confirm that, but I don't understand the code well enough)? Or what other function sets that list? sendmail does not use SSL_CTX_set0_CA_list(). -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users