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A Proposal of TLS Implementation for Cross Certification Model

Tadashi KAJI, Takahiro FUJISHIRO, Satoru TEZUKA

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Summary :

Today, TLS is widely used for achieving a secure communication system. And TLS is used PKI for server authentication and/or client authentication. However, its PKI environment, which is called as "multiple trust anchors environment," causes the problem that the verifier has to maintain huge number of CA certificates in the ubiquitous network because the increase of terminals connected to the network brings the increase of CAs. However, most of terminals in the ubiquitous network will not have enough memory to hold such huge number of CA certificates. Therefore, another PKI environment, "cross certification environment", is useful for the ubiquitous network. But, because current TLS is designed for the multiple trust anchors model, TLS cannot work efficiently on the cross-certification model. This paper proposes a TLS implementation method to support the cross certification model efficiently. Our proposal reduces the size of exchanged messages between the TLS client and the TLS server during the handshake process. Therefore, our proposal is suitable for implementing TLS in the terminals that do not have enough computing power and memory in ubiquitous network.

Publication
IEICE TRANSACTIONS on Information Vol.E91-D No.5 pp.1311-1318
Publication Date
2008/05/01
Publicized
Online ISSN
1745-1361
DOI
10.1093/ietisy/e91-d.5.1311
Type of Manuscript
Special Section PAPER (Special Section on Information and Communication System Security)
Category
Implementation

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