Oblivious Transfer Scheme of Access Control Based on ECC Signature
Xizhao Luo · Jisuanji gongcheng · 2010
On the basis of elliptic curve digital signature and Oblivious Signature-Based Envelope(OSBE),an enhanced oblivious transfer scheme is proposed which solves the access control problem for an oblivious transfer protocol.In addition to have the properties of oblivious transfer,the scheme also has the following properties: the receiver who can decrypt the message if and only if he has the trusted third party’s signature,and the sender neither decides which message the receiver acquires nor decides whether the receiver is an authorized user or not.The scheme has less data,faster computation speed and less consumption than others based on Finite Field Discrete Logarithm Problem(FFDLP),it can be widely applied in many fields.