PROJECT TITLE :

Attribute-based signature scheme with constant size signature in the standard model

ABSTRACT :

In this study, the authors propose a new economical attribute-based signature (ABS) scheme. This scheme achieves existential unforgeability against selective predicate attack and attributes signer privacy in the quality model. The signature theme only wants 3 pairing operations, and also the signature size is constant, no matter the quantity of attributes. Compared with different existing schemes, this construction provides higher efficiency in terms of the computational cost and communication value. To the best of author's data, this can be the primary ABS theme that may achieve constant signature size and constant number of pairing operations. Additionally, once the analysis of Wang and Chen's attribute-based ring signature theme, the authors show that their theme is inaccurate.