Proxy signature-based role delegation scheme: formal analysis and simulation

In the security domain, wide variety of signature schemes are available for providing confidentiality, Integrity and non-repudiation. Proxy signature schemes which are variant of digital signature found their importance in e-governance and finance domain for authority delegation. Role based delegation proposed in this research work is aimed for providing in roles rights in the signature form to the individual in the terms of proxy signature. Various proxy signature delegation schemes are studied and compared on the parameter’s security, efficiency and key management majorly. Forward secure proxy key generation and verification scheme Ro-De-PSA is proposed based on Elliptic curve cryptography (ECC). The correctness of the proposed algorithm is analysed using BAN logic and the security analysis is performed using AVISPA.