This book constitutes the thoroughly refereed post-proceedings of the Third International Conference on Information Security and Cryptology, ICISC 2000, held in Seoul, Korea, in December 2000. The 20 revised full papers presented were carefully reviewed and selected from a total of 56 submissions. Among the topics addressed are cryptanalysis, elliptic curve cryptography, cryptographic protocols, block ciphers, hash functions, multi-party protocols, digital signatures, E-commerce, anonymous auction systems, finite field polynomials, anonymous fingerprinting, network security, and security evaluation systems.