Authentication scheme · Weak authentication Passwords. pin. etc One-time passwords(semi-strong authentication) Strong(cryptographic)authentication Challenge- Response Mechanisms Zero-knowledge authentication Allow Claimant to demonstrate knowledge of a secret without revealing any information whatsoever of the secret 復大辱软件学院 LiSTLiJT 9 Authentication scheme • Weak authentication – Passwords, PIN, etc – One-time passwords(semi-strong authentication) • Strong (cryptographic) authentication – Challenge – Response Mechanisms • Zero-knowledge authentication – Allow Claimant to demonstrate knowledge of a secret without revealing any information whatsoever of the secret