Method for jointly generating SM2 digital signature by multiple parties
A digital signature and multi-party technology, applied in the field of information security, can solve problems such as the inability to obtain private keys
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[0043] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0044] like figure 1 As shown, the present invention proposes a scheme for multiple parties to jointly generate SM2 digital signatures, and a specific description is given below.
[0045] In the following description of the scheme of the present invention, if P, Q are elements (points) in the elliptic curve group, then P+Q, P-Q represent P, point addition and subtraction operations of Q respectively, and k P represents k elliptic curves The point addition of point P, that is, P+P+...+P (a total of k P); ellipsis "..." means multiple data items of the same (type) or multiple same operations; Represents an integer field of...
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