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In a multi-proxy multi-signature scheme, one original group delegates a group of proxy signers to sign messages on behalf of the original signers. When the proxy signature is created, all of proxy signers cooperate to generate valid proxy signatures. Based on Cha and Cheon's ID-based signature scheme, a multi-proxy multi-signature scheme based on bilinear-pairs is proposed. The proposed scheme can...
Signcryption is a novel cryptographic primitive that prove confidentiality and authenticity simultaneously. In bandwidth-constrained environments, the data mount of ciphertext is the crucial factor that holds back its broad application. While most of the known schemes based on discrete logarithm problem and RSA problem, have the low communication performance. Based on BLS signature scheme, an efficient...
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