Provably secure anonymous three-factor authentication scheme for multi-server environments

摘要: Significant developments in wireless communication technologies have resulted the increased popularity of mobile devices and services. However, excessive service requests reduce efficiency traditional single-server architectures, which consist one server many users. To overcome this limitation, a multi-server architecture was proposed. Additionally, password-based or smart-card-based authentication schemes cannot support some important security properties environments. Consequently, biometrics are widely used as third factor, addition to passwords smart cards, make more secure. Reddy et al. recently designed three-factor (i.e., password, card biometrics) scheme for we found that their lacks untraceability is vulnerable privileged insider attacks. address these deficiencies, propose security-enhanced environments based on elliptic curve cryptography (ECC). We prove proposed secure using random oracle model. Moreover, an informal analysis shows fulfills all requirements architecture. Finally, results from performance analyses indicate our achieves significant improvement with minimal impact performance.