Final answer:
In AWS Storage Gateway, Storage Gateways use Challenge Handshake Authentication Protocol (CHAP) to authenticate iSCSI initiator challenges to protect against playback attacks.
Step-by-step explanation:
In AWS Storage Gateway, Storage Gateways use Challenge Handshake Authentication Protocol (CHAP) to authenticate iSCSI initiator challenges to protect against playback attacks.
CHAP is a protocol used for authentication in network protocols like iSCSI. It provides a secure way to verify the identity of the initiator and protect against replay attacks. It uses a series of challenges and responses between the initiator and the target to establish secure authentication.
Unlike cookies, SSL certificates, or biometric authentication, CHAP is specifically designed for the purpose of authentication in network protocols like iSCSI.