Pre-signed response generation and verification method and generation and verification device
A pre-signature and responder technology, applied to electrical components, transmission systems, etc., can solve the problem that the freshness protection level of the pre-signature cannot be adjusted, and achieve the effect of improving the anti-replay attack ability
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[0023] In the embodiment of the present invention, the OCSP responder generates the protection level adjustment information and its signature and the pre-signed response with the hash chain extension field, and dynamically adjusts the protection level adjustment information. When the OCSP responder receives the online After the certificate verification request, the current update value is calculated to form real-time hash chain update information, and the real-time hash chain update information and pre-signed response are sent to the verifier. After receiving the pre-signed response and real-time hash chain update information, the verifier can immediately perform replay verification according to the real-time hash chain update information, thereby improving the ability to resist replay attacks.
[0024] In order to make the object, technical solution and advantages of the present invention clearer, the specific embodiments of the present invention will be further described in d...
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