Title :
A new generalized group-oriented cryptoscheme without trusted centers
Author :
Chang, Chin-Chen ; Lee, Horng-Chin
Author_Institution :
Inst. of Comput. Sci. & Inf. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan
fDate :
6/1/1993 12:00:00 AM
Abstract :
The authors first define the concept of a generalized group-oriented cryptosystem. Based on the generalized secret-sharing scheme proposed by H.Y. Lin and L. Harn (1991), they present a noninteractive approach for realizing such a group-oriented cryptosystem. There are three advantages to the approach: it does not need any trusted clerk or center to distribute the messages to the recipients in the receiving group; it allows the sender to renew the encryption/decryption keys for broadcasting secure messages in each transmission; and it allows the sender to determine the legal recipients without any coordination with the receiving groups
Keywords :
cryptography; encryption/decryption keys; generalized group-oriented cryptoscheme; generalized secret-sharing; secure message broadcasting; Broadcasting; Computer science; Data communication; Law; Legal factors; Protection; Protocols; Public key cryptography; Security;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
