TLS1_TXT_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C) nothrow @nogc
enum TLS1_TXT_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = "DH-RSA-CAMELLIA128-SHA256";

Meta