Identity-based Encryption Scheme Resilient to Key Leakage
YU Qi-hon · Science Technology and Engineering · 2013
Recently,in the community of leakage-resilient cryptography research,leakage-resilient identitybased encryption causes a great deal of concern. A leakage-resilient identity-based encryption scheme is presented.On the judgment of square bilinear Diffie-Hellman problem(Square-DBDH),the proof of the security of the scheme is given in a tight reduction way. The proposed scheme has shorter public key parameters. The specific analysis shows that our scheme can almost tolerate half leakage of the secret key,i. e. the relative rate is close to 1 /2.