ID-based multisignatures with distinguished signing authorities for sequential and broadcasting architectures

Authors:
Tzong-Sun Wu;Chien-Lung Hsu
Affiliations:
Department of Information Management, Huafan University, No. 1, Huafan Road, Shihtin Hsiang, Taipei Hsien, 223 Taiwan, ROC;Department of Information Management, National Taiwan University of Science and Technology, Taipei, 106 Taiwan, ROC
Venue:
Applied Mathematics and Computation
Year:
2002

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Abstract

The multisignatures achieve the purpose for many individuals to cooperatively sign the same document. However, for the sake of the division of labor, it might be required that each individual sign a partial group message that he is responsible for. These schemes are called multisignatures with distinguished signing authorities. Based on the difficulty of the factorization problem, we proposed two ID-based multisignature schemes with distinguished signing authorities. One scheme is suitable for the sequential architecture and the other for the broadcasting one.