Chi-Sung Laih and Sung-Ming Yen*
Department of Electrical Engineering
National Cheng Kung University
Tainan, Taiwan, R.O.C.
*Department of Electrical Engineering
Da-Yeh Institute of Technology
Chang-Hwa, Taiwan, 51505, R.O.C.
In this paper, a multi-signature for a specified group of verifiers is proposed. In the scheme, a group of signers together can create a digital multi-signature for a specified group of verifiers, and only all the verifiers in the group together can check the validity of the signature. The most important feature in the new signature is that transferability of the signature is not allowed.
Keywords: cryptography, digital signatures, group oriented cryptosystems, public key cryptosystems, information security
Received October 20, 1994; revised August 3, 1995.
Communicated by Jin-Fu Chang.