A Secure Proxy Verifiably Encrypted Signature Scheme

作者：Zhang Jianhong; Gao Shengnan

来源：1st International Conference on E-Business and Information System Security, China,Hubei,Wuhan, 2009-05-23 to 2009-05-24.

DOI：10.1109/ebiss.2009.5137897

• verifiably encrypted signature
• proxy signature
• security proof
• the CDH problem

A verifiably encrypted signature can convince the verifier that a given cipher-text is the encryption of a signature on a given message. It is often used as a building block to construct optimistic fair exchange. In this paper, we propose a new concept: proxy verifiable encryption signature scheme, by combining proxy signature with verifiable encryption signature. And we formalize security model of the scheme and show that the scheme is secure in the random oracle model. The security of the scheme is related to Computational Diffie-Hellman problem.

• 出版日期2009
• 单位北方工业大学