Online Certificate Status Checking in Financial Transactions:  The Case for Re-issuance

Barbara L. Fox and Brian A. LaMacchia



High-value financial transactions underwrite the need for a relying party to check the status of a digital certificate in real time. In this paper, we propose a simple mechanism for online certificate status checking that is particularly well-suited to the closed public key infrastructures that characterize financial networks. We further identify a dangerous trend towards maintaining the lifetime of a certificate for non-technical reasons and, as a by-product, create overly-complex protocols and data structures.


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Brian A. LaMacchia
This page last updated: 18 Aug 2008