This book constitutes the refereed proceedings of the 17th International Conference on Practice and Theory in Public-Key Cryptography, PKC 2014, held in Buenos Aires, Argentina, in March 2014. The 38 papers presented were carefully reviewed and selected from 145 submissions. The papers are organized in topical sections on chosen ciphertext security, re-encryption, verifiable outsourcing, cryptanalysis, identity and attribute-based encryption, enhanced encryption, signature schemes, related-key security, functional authentication, quantum impossibility, privacy, protocols.

This book constitutes the refereed proceedings of the 18th Annual International Cryptology Conference, CRYPTO'98, held in Santa Barbara, California, USA, in August 1998. The book presents 33 revised full papers selected from a total of 144 submissions received. Also included are two invited presentations. The papers are organized in topical sections on chosen ciphertext security, cryptanalysis of hash functions and block ciphers, distributed cryptography, zero knowledge, and implementation.