ECDSA 签名 为什么 dart 和 js 结果不一样 - V2EX
flippedQAQ

ECDSA 签名 为什么 dart 和 js 结果不一样

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  •   flippedQAQ Aug 17, 2023 via Android 1975 views
    This topic created in 1024 days ago, the information mentioned may be changed or developed.
    使用相同的私钥对相同数据签名

    结果中 r 和 v 的值是一致的,但是 s 值不一样 有大佬能解答吗
    6 replies    2023-08-18 20:36:15 +08:00
    jworg
        1
    jworg  
       Aug 17, 2023
    算 k 的方法可能不一样,具体要看实现 https://datatracker.ietf.org/doc/html/rfc6979#section-3.2
    flippedQAQ
        2
    flippedQAQ  
    OP
       Aug 17, 2023 via Android
    @jworg 我是小白 请问这个算法不应该是通用的吗
    jworg
        3
    jworg  
       Aug 17, 2023
    如果你用的是第三方的这个库,issue 里有说明 https://github.com/c0mm4nd/dart-ecdsa/issues/2
    flippedQAQ
        4
    flippedQAQ  
    OP
       Aug 17, 2023 via Android
    @jworg 感谢感谢 我去试试这个库
    keyfunc
        5
    keyfunc  
       Aug 17, 2023
    椭圆曲线算法的签名值每次都是不一样的
    youngbug
        6
    youngbug  
       Aug 18, 2023 via Android
    这个库签名,那个库验证签名能过就行。签名的时候用随机数了,每次结果都不一样,不用比两次签名结果
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