Browsing by Subject "ElGamal decryption"

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    Threshold cryptography based on asmuth-bloom secret sharing
    (Springer, 2006-11) Kaya, Kamer; Selçuk, Ali Aydın; Tezcan, Zahir
    In this paper, we investigate how threshold cryptography can be conducted with the Asmuth-Bloom secret sharing scheme and present two novel function sharing schemes, one for the RSA signature and the other for the ElGamal decryption functions, based on the Asmuth-Bloom scheme. To the best of our knowledge, these are the first threshold cryptosystems realized using the Asmuth-Bloom secret sharing. The proposed schemes compare favorably to the earlier function sharing schemes in performance as well as in certain theoretical aspects. © Springer-Verlag Berlin Heidelberg 2006.