Meta-Message Recovery and Meta-Blind Signature Schemes Based on the Discrete Logarithm Problem and Their Applications
نویسندگان
چکیده
There have been several approaches in the past to obtain signature schemes with appendix and signature schemes giving message recovery based on the discrete logarithm problem. Most of them can be embedded into a Meta-ElGamal and Meta-Message recovery scheme. In this paper we present the Meta-blind signature schemes which have been developed from the ElGamal based blind signature scheme and the message recovery blind signature scheme discovered recently. From our Meta-scheme we get various variants from which some are more eecient than the already known ones. They can be recommended for practical use. Then we give interesting applications of the Meta-Message recovery and Meta-Blind signature schemes like authentic encryption schemes, key distribution protocols and authentication schemes. Again, we can extract highly eecient variants.
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