Mathematical Foundations of Computer Security

Authentication in multi-tier systems using proxy signatures

P. A. Pautov

Tomsk State University, Tomsk, Russia

Abstract: Two authentication protocols for multi-tier system based on proxy signatures are provided. Implementation of these protocols using certificates is considered. In the first protocol, proxy signature is only used for the authentication of a client, but in the second one, it is also used for the authentication of requests inside the system. This makes the second protocol more secure.

Keywords: multi-tier systems, authentication, proxy signature.

UDC: 004.056