The thoroughly refereed post-proceedings of the Second International Workshop on Digital Rights Management, DRM 2002, held in Washington, DC, USA, in November 2002, in conjunction with ACM CCS-9. The 13 revised full papers presented were carefully reviewed and selected for inclusion in the book. Among the topics addressed are DES implementation for DRM applications, cryptographic attacks, industrial challenges, public key broadcast encryption, fingerprinting, copy-prevention techniques, copyright limitations, content protection, watermarking systems, and theft-protected proprietary certificates.

Crypto '91 was the eleventh in a series of workshops on cryptology sponsoredby the International Association for Cryptologic Research and was held in Santa Barbara, California, in August 1991. This volume contains a full paper or an extended abstract for each of the 39 talks presented at the workshop. All theoretical and practical aspects of cryptology are represented, including: protocol design and analysis, combinatorics and authentication, secret sharing and information theory, cryptanalysis, complexity theory, cryptographic schemas based on number theory, pseudorandomness, applications and implementations, viruses, public-key cryptosystems, and digital signatures.