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IJNSEC
2006

ID-based Signcryption Scheme with (t, n) Shared Unsigncryption

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ID-based Signcryption Scheme with (t, n) Shared Unsigncryption
An identity-based signcryption scheme with (t, n) shared unsigncryption is proposed, which is the integration of the signcryption scheme, the (t, n) threshold scheme and zero knowledge proof for the equality of two discrete logarithms based on the bilinear map. In this scheme, any third party can verify the validity of the signature, but only more than t members in the recipient group can cooperatively recover the message m. As compared to the Zhang et al.'s signcryption scheme with (t, n) shared unsigncryption based on discrete logarithms, the proposed scheme has the following advantages: it provides both public verifiability and forward security; the key management problem is simplified because of using identity-based cryptosystem.
Fagen Li, Xiangjun Xin, Yupu Hu
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2006
Where IJNSEC
Authors Fagen Li, Xiangjun Xin, Yupu Hu
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