Hi Team, Iam using nss-3.68.4-with-nspr-4.32 in my server. Client is trying to connect to the server using STARTTLS, but after "Client Hello" message is sent, the server sending "Unsupported Extension" to the client and the connection getting closed.
Could anyone help me to figure out which extension did the server not supported? Below is the client hello message with extensions obtained from tcpdump: Transport Layer Security TLSv1.2 Record Layer: Handshake Protocol: Client Hello Content Type: Handshake (22) Version: TLS 1.0 (0x0301) Length: 751 Handshake Protocol: Client Hello Handshake Type: Client Hello (1) Length: 747 Version: TLS 1.2 (0x0303) Random: <Random> Session ID Length: 32 Session ID: <Session id> Cipher Suites Length: 62 Cipher Suites (31 suites) Compression Methods Length: 1 Compression Methods (1 method) Extensions Length: 612 Extension: ec_point_formats (len=4) Extension: supported_groups (len=12) Extension: encrypt_then_mac (len=0) Extension: extended_master_secret (len=0) Extension: signature_algorithms (len=48) Extension: supported_versions (len=9) Extension: psk_key_exchange_modes (len=2) Extension: key_share (len=38) Extension: certificate_authorities (len=463) Any help to resolve this problem will be really helpful. Best Regards, Hanumesh -- You received this message because you are subscribed to the Google Groups "dev-tech-crypto@mozilla.org" group. To unsubscribe from this group and stop receiving emails from it, send an email to dev-tech-crypto+unsubscr...@mozilla.org. To view this discussion on the web visit https://groups.google.com/a/mozilla.org/d/msgid/dev-tech-crypto/CAMiJu-nkJqwp3fwY9JXPYZSLeu%3DuLU15WYbNxK3OG5ZjTxps9A%40mail.gmail.com.