Protected Extensible Authentication Protocol (PEAP) provides encrypted, mutual authentication, while the Microsoft Challenge Handshake Authentication Protocol provides network authentication through username and password.
PEAP is also an acronym for Personal Egress Air Packs.
The Protected Extensible Authentication Protocol, also known as Protected EAP or simply PEAP, is a protocol that encapsulates the Extensible Authentication Protocol (EAP) within an encrypted and authenticated Transport Layer Security (TLS) tunnel. The purpose was to correct deficiencies in EAP; EAP assumed a protected communication channel, such as that provided by physical security, so facilities for protection of the EAP conversation were not provided.
PEAP was …