Attribute-Based Blind Signature Scheme Based on Elliptic Curve Cryptography

Blind signature is a special digital that allows the signer to sign document without knowing its content. However, in many situations, multiple people need blindly messages. At this time, traditional blind can no longer satisfy application requirements. To solve problem, attribute-based cryptography has been combined with signature. The concept of generated. present, all schemes require support bilinear pairing technology, which involves several complex and exponential operations verification processes, computational efficiency not high. In paper, we present an scheme based on elliptic curve (ECC), security new proved under intractability discrete logarithm problem (ECDLP). Our key policy (KP-ABS). uses linear secret sharing (LSSS) matrix technology does recursive operation achieve more flexible fine-grained access control. addition, Elliptic Curve Cryptography (ECC) using scalar multiplication instead operation. significant advantages terms storage compared existing schemes.