1. Proxy signatures: delegation of the power to sign messages;Mambo;IEICE Transactions on Fundamentals of Electronic Communications and Computer Science,1996
2. A digital multisignature scheme based on the Fiat-Shamir scheme;Ohta,1991
3. Proxy multi-signature scheme: a new type of proxy signature scheme;Yi;Electronics Letters,2000
4. ISO/IEC 9594-8, Information technology––open systems interconnection––the directory: authentication framework, International Organization for Standardization, 1995
5. Proxy signatures;Kim,1997