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On blindness of several ElGamal-type blind signatures A. A. Babueva, L. R. Akhmetzyanova, E. K. Alekseev, O. G. Taraskin
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Blind signature schemes are the essential element of many e-cash and e-voting systems. Anonymity in such systems is ensured through the blindness property of the signature schemes. We discuss the blindness property and analyze several ElGamal-type blind signature schemes regarding this property. We present effective attacks violating blindness on three schemes.
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