International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Adrian Perrig

Publications

Year
Venue
Title
2002
EPRINT
Tree-based Group Key Agreement
Yongdae Kim Adrian Perrig Gene Tsudik
Secure and reliable group communication is an active area of research. Its popularity is caused by the growing importance of group-oriented and collaborative applications. The central research challenge is secure and efficient group key management. While centralized methods are often appropriate for key distribution in large multicast-style groups, many collaborative group settings require distributed key agreement techniques. This work investigates a novel group key agreement approach which blends so-called key trees with Diffie-Hellman key exchange. It yields a secure protocol suite (TGDH) that is both simple and fault-tolerant. Moreover, the efficiency of TGDH appreciably surpasses that of prior art.

Coauthors

Yongdae Kim (1)
Gene Tsudik (1)