TLS Fallback Signaling Cipher Suite Value (SCSV) for Preventing Protocol Downgrade Attacks

TLS Fallback Signaling Cipher Suite Value (SCSV) for Preventing Protocol Downgrade Attacks This document defines a Signaling Cipher Suite Value (SCSV) that prevents protocol downgrade attacks on the Transport Layer Security (TLS) protocol. It updates RFC 2246, RFC 4346, and RFC 5246.