The rhttpproxy must use cryptography to protect the integrity of remote sessions.
The rhttpproxy can be configured to support TLS 1.0, 1.1 and 1.2. Due to intrinsic problems in TLS 1.0 and TLS 1.1, they are disabled by default. The <protocol> block in the rhttproxy configuration is commented out by default, and this configuration forces TLS 1.2. The block may also be set to "tls1.2" in certain upgrade scenarios, but the effect is the same.