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The proxy signature scheme is a kind of digital signature scheme. In the proxy signature scheme, one user, called the original signer, can delegate his/her signing capability to another user called the proxy signer. This is similar to a person delegating his/her seal to another person in the real world. In this paper, we propose a new type of proxy(More)
A proxy blind signature allows the designated proxy signer using the proxy private key to generate a blind signature on behalf of the original signer. In previous proxy blind signature schemes, there was no revocation protocol wherein the original signer could delegate his signing capability to a proxy signer. In this paper, we propose a proxy blind(More)
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