Invited Talks -- Design of Secure Key Establishment Protocols: Successes, Failures and Prospects -- Secure Protocols for Complex Tasks in Complex Environments -- Cryptographic Protocols -- Tripartite Key Exchange in the Canetti-Krawczyk Proof Model -- The Marriage Proposals Problem: Fair and Efficient Solution for Two-Party Computations -- Applications -- On the Security of a Certified E-Mail Scheme -- Multiplicative Homomorphic E-Voting -- Stream Ciphers -- Chosen Ciphertext Attack on a New Class of Self-Synchronizing Stream Ciphers -- Algebraic Attacks over GF(q) -- Cryptographic Boolean Functions -- Results on Algebraic Immunity for Cryptographically Significant Boolean Functions -- Generalized Boolean Bent Functions -- On Boolean Functions with Generalized Cryptographic Properties -- Foundations -- Information Theory and the Security of Binary Data Perturbation -- Symmetric Authentication Codes with Secrecy and Unconditionally Secure Authenticated Encryption -- Block Ciphers -- Faster Variants of the MESH Block Ciphers -- Related-Key Attacks on Reduced Rounds of SHACAL-2 -- Related-Key Attacks on DDP Based Ciphers: CIKS-128 and CIKS-128H -- Cryptanalysis of Ake98 -- Public Key Encryption -- Designing an Efficient and Secure Public-Key Cryptosystem Based on Reducible Rank Codes -- HEAD: Hybrid Encryption with Delegated Decryption Capability -- A Provably Secure Elliptic Curve Scheme with Fast Encryption -- Efficient Representations -- Advances in Alternative Non-adjacent Form Representations -- Public Key Cryptanalysis -- Attacks on Public Key Cryptosystems Based on Free Partially Commutative Monoids and Groups -- Exact Analysis of Montgomery Multiplication -- Cryptography, Connections, Cocycles and Crystals: A p-Adic Exploration of the Discrete Logarithm Problem -- Modes of Operation -- EME*: Extending EME to Handle Arbitrary-Length Messages with Associated Data -- Impossibility of Construction of OWHF and UOWHF from PGV Model Based on Block Cipher Secure Against ACPCA -- The Security and Performance of the Galois/Counter Mode (GCM) of Operation -- Signatures -- Revisiting Fully Distributed Proxy Signature Schemes -- New ID-Based Threshold Signature Scheme from Bilinear Pairings -- Separable Linkable Threshold Ring Signatures -- Traitor Tracing and Visual Cryptography -- A New Black and White Visual Cryptographic Scheme for General Access Structures -- Identification Algorithms for Sequential Traitor Tracing.

This book constitutes the refereed proceedings of the 5th International Conference on Cryptology in India, INDOCRYPT 2004, held in Chennai, India in December 2004. The 30 revised full papers presented together with 2 invited papers were carefully reviewed and selected from 181 submissions. The papers are organized in topical sections on cryptographic protocols, applications, stream ciphers, cryptographic Boolean functions, foundations, block ciphers, public key encryption, efficient representations, public key cryptanalysis, modes of operation, signatures, and traitor tracing and visual cryptography.