Archive for December, 2013

A Comparison of HTTPS Reforms

An old adage in cryptology is that encrypting data is always easy, but key distribution is always hard. Just a few days ago, Google reported that yet another wrongfully-issued certificate had been found for Google’s domains. As a result of many incidents and problems with CA-issued certificates, many different proposals have been made to improve the system. Google’s Certificate Transparency page compares some of the proposals; but it did not include my favorite idea, I thought it did not do justice to some of the other competing proposals, and it glossed over some of CT’s big issues. I evaluated all the proposals according to these criteria and put together the below spreadsheet to compare their strengths and weaknesses.

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