Pairing-Free and Revocable Certificateless Signature Against Signing Key Exposure
نویسندگان
چکیده
Certificateless public key schemes without pairing have attracted much attention for its relatively high efficiency. The revocation problem is a very necessary issue in a public key cryptosystem. However, there have been some solutions to the certificateless revocation problem; they still suffer from low efficiency or security weakness. In this paper, we propose a revocable certificateless signature scheme, which highlights the public channel for key-update, no bilinear pairing and signing key exposure resistant. Our scheme is provably secure under the difficulty assumption of the Computational DiffieHellman problem.
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