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盲签名方案在电子货币等密码系统中具有重要的作用。该文对两个广义ＥＩＧａｍａｌ型数字签名方案进行修改，并从修改的签名方案出发构造了两个强盲签名方案。
The blind signature scheme plays an important role in cryptographic systems such as electronic money. In this paper, two generalized EIGamal digital signature schemes are modified, and two strong blind signature schemes are constructed from the modified signature scheme.