masaori335 commented on code in PR #13428:
URL: https://github.com/apache/trafficserver/pull/13428#discussion_r3693967281
##########
src/iocore/net/SSLUtils.cc:
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@@ -369,6 +371,53 @@ ssl_next_protos_advertised_callback(SSL *ssl, const
unsigned char **out, unsigne
return SSL_TLSEXT_ERR_NOACK;
}
+static bool
+is_http2_prohibited_cipher(const SSL_CIPHER *cipher)
+{
+ struct CipherRange {
+ uint16_t first;
+ uint16_t last;
+ };
+
+ // RFC 9113 Appendix A lists 276 prohibited TLS 1.2 cipher suites. The IANA
+ // identifiers for those suites form these 24 contiguous ranges.
+ static constexpr CipherRange prohibited_ranges[] = {
Review Comment:
I checked with IANA registration.
https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4
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