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1993年Alabbadi和Wicker对基于纠错码的Xinmei数字签名方案提出了一种改进方案,通常称为AW方案.证明了该方案存在严重的安全问题:任何人仅利用签名用户的公钥就可以构造等价的签名私钥,从而成功地实现伪造签名.同时指出,基于大矩阵分解的困难性很难构造出安全性较高的数字签名方案.
In 1993, Alabbadi and Wicker proposed an improved scheme for Xinmei digital signature scheme based on error-correcting code, which is usually called AW scheme. It proves that there is a serious security problem in this scheme: anyone can construct using only the signed user’s public key Equivalent signature private key, so as to successfully implement forgery signature.At the same time, it is pointed out that based on the difficulty of large matrix decomposition, it is difficult to construct a secure digital signature scheme.