Title :
Research on Model of Trust Degrees for PKI
Author :
Zhang, Mingde ; Zheng, Xuefeng ; Yang, Wensheng ; Lv, Shuwang ; Zhang, Qingguo
Author_Institution :
Sch. of Inf. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
In order to improve the accuracy of trust evaluation of subscribers (or key holders) from relying parties´ point of view, a new model of trust degrees for PKI is proposed. By analyzing the security risks during the applying and using process of certificates and private keys, we introduce non-trust factor (NTF); then based on NTF, a method for trust degrees of keys is presented. Comparing with the existing work, the model integrates several critical factors which influence trust degrees of keys into one formula, thus improving the accuracy of trust evaluation for PKI and being applicable to a variety of PKI trust models.
Keywords :
private key cryptography; public key cryptography; PKI; nontrust factor; private key; public key infrastructure; security risk analysis; trust degree model; Authentication; Calculus; Computer security; Content addressable storage; Information security; Laboratories; Logic; Risk analysis; Risk management; Uncertainty; Model; Non-Trust Factor (NTF); PKI; Trust Degrees;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xian
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.197
