ID BASED PROXY SIGNATURE APPARATUS WITH RESTRICTION ON SIGNING CAPABILITY BY BILINEAR MAP AND METHOD THEREOF

摘要

The present invention relates to an existing personal identification information and the signature method based surrogate similarly provide verifiable safety using the bilinear function and the individual identification information based on having an effective assurance delegation proxy signature capability limitations proxy signature method, ; The present invention provides algorithms to delegate signing authority to Book Review Self proxy signer to configure in your personal identifying information-based authentication model for each user that has a structure that issues the private key using each of personally identifiable information, warranties, commissioned proxy signature methods by proxy signer and the algorithm that generates the signature, and the proven self-configuring proxy signature algorithm to verify the proxy signature, ; The present invention ensures the proxy signature key generation computational time and the efficiency and safety proved possible to reduce the storage space required for the effect, and it is capable of limiting the number of times of signing proxy signer. ; How personally identifiable information is based on proxy signature, proxy signature method, the bilinear function