下列关于数字签名技术说法正确的是
A.签名者事后不能否认自己的签名
B.任何人不能伪造签名
C.可以通过仲裁机构确定签名的真伪
D.可以利用传统密码进行数字签名
E.可以利用公开密钥密码进行签名
正确答案是ABCDE
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