关键词: 非均匀B-样条, 加密算法, 密钥埋置, 间距变异

Abstract: A new encryption method for software encryption and authentication was proposed. This approach was based on non-uniform B-spline curve function constructing method and geometric characteristics. Key was embedded into nodes of non-uniform B-spline basis function, and then the control points which can construct a rich shape curve were generated according to explicitly, thus the spline curve was obtained. Finally, effective information was collected through the curve as the cipher text for encryption. The encryption algorithm used effectively curve features information to encrypt hash, at the same time strengthening encryption and enhancing the encryption efficiency. The proposed algorithm can be widely used in software encryption and authentication. Furthermore, encryption algorithm can satisfy current needs of frequent updates.

Key words: non-uniform B-spline, encryption scheme, key embedding, pitch variation