Attribute-Based Signatures with Advanced Delegation, and Tracing

ePrint Report: Attribute-Based Signatures with Advanced Delegation, and Tracing

Cécile Delerablée, Lénaïck Gouriou, David Pointcheval

Attribute-based cryptography allows fine-grained control on the use of the private key. In particular, attribute-based signature (ABS) specifies the capabilities of the signer, which can only sign messages associated to a policy that is authorized by his set of attributes. Furthermore, we can expect signature to not leak any information about the identity of the signer. ABS is a useful tool for identity-preserving authentication process …

abs advanced can capabilities control cryptography eprint report key messages policy private private key report sign signature signatures tracing