Certificate-free combined secret key generation and application method
A technology of combined key and application method, which is applied in the field of certificateless combined key generation and application, and can solve problems such as collision
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[0069] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.
[0070] Such as figure 1 As shown, a method for generating and applying a combined key without a certificate in this embodiment includes the following steps: S1. The server side generates an elliptic curve and 2 h ×2 k The private key seed matrix skm, 2 h ×2 k The public key seed matrix pkm, and publish the parameters of the elliptic curve and the public key seed matrix pkm, the parameters of the elliptic curve include the base point G of the elliptic curve; S2. The client generates an individual identification ID, a partial signature private key xID and a partial signature public key PK uk , and the individual identification ID, part of the signature public key PK uk Upload to the server; S3. The server generates the individual identification private key SK ...
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