Analysis of SSL Certificate Reissues and Revocations in the Wake of Heartbleed

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Provided by: Association for Computing Machinery
Topic: Security
Format: PDF
Central to the secure operation of a Public Key Infrastructure (PKI) is the ability to revoke certificates. While much of users' security rests on this process taking place quickly, in practice, revocation typically requires a human to decide to reissue a new certificate and revoke the old one. Thus, having a proper understanding of how often systems administrators reissue and revoke certificates is crucial to under-standing the integrity of a PKI. Unfortunately, this is typically difficult to measure: while it is relatively easy to determine when a certificate is revoked, it is difficult to determine whether and when an administrator should have revoked.
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