Constitutes the refereed proceedings of the 7th International Conference on Cryptology in India, INDOCRYPT 2006, held in Kolkata, India in December 2006. This book features the papers covering such topics as symmetric cryptography, provable security, fast implementation of public key cryptography, and id-based cryptography.

Invited Talk.- Whither Cryptography?.- Symmetric Cryptography: Attacks.- Non-randomness in eSTREAM Candidates Salsa20 and TSC-4.- Differential and Rectangle Attacks on Reduced-Round SHACAL-1.- Algebraic Attacks on Clock-Controlled Cascade Ciphers.- An Algorithm for Solving the LPN Problem and Its Application to Security Evaluation of the HB Protocols for RFID Authentication.- Hash Functions.- Update on Tiger.- RC4-Hash: A New Hash Function Based on RC4.- Security of VSH in the Real World.- Provable Security: Key Agreement.- Cryptanalysis of Two Provably Secure Cross-Realm C2C-PAKE Protocols.- Efficient and Provably Secure Generic Construction of Three-Party Password-Based Authenticated Key Exchange Protocols.- On the Importance of Public-Key Validation in the MQV and HMQV Key Agreement Protocols.- Invited Talk.- Another Look at “Provable Security”. II.- Provable Security: Public Key Cryptography.- Efficient CCA-Secure Public-Key Encryption Schemes from RSA-Related Assumptions.- General Conversion for Obtaining Strongly Existentially Unforgeable Signatures.- Conditionally Verifiable Signature.- Constant Phase Bit Optimal Protocols for Perfectly Reliable and Secure Message Transmission.- Symmetric Cryptography: Design.- Using Wiedemann’s Algorithm to Compute the Immunity Against Algebraic and Fast Algebraic Attacks.- Enciphering with Arbitrary Small Finite Domains.- Enumeration of 9-Variable Rotation Symmetric Boolean Functions Having Nonlinearity > 240.- Modes of Operation and Message Authentication Codes.- Symmetric Nonce Respecting Security Model and the MEM Mode of Operation.- HCH: A New Tweakable Enciphering Scheme Using the Hash-Encrypt-Hash Approach.- Efficient Shared-Key Authentication Scheme from Any Weak Pseudorandom Function.- A Simple and Unified Methodof Proving Indistinguishability.- Fast Implementation of Public Key Cryptography.- Extended Double-Base Number System with Applications to Elliptic Curve Cryptography.- CMSS – An Improved Merkle Signature Scheme.- ID-Based Cryptography.- Constant-Size ID-Based Linkable and Revocable-iff-Linked Ring Signature.- Secure Cryptographic Workflow in the Standard Model.- Multi-receiver Identity-Based Key Encapsulation with Shortened Ciphertext.- Identity-Based Parallel Key-Insulated Encryption Without Random Oracles: Security Notions and Construction.- Embedded System and Side Channel Attacks.- AES Software Implementations on ARM7TDMI.- Galois LFSR, Embedded Devices and Side Channel Weaknesses.

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