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Category: Certificate Validation

Certificate Validation Certutil Documentation Hall of Shame Internet Explorer Offline CA PKI Revocation Watch Out

Ignore Revocation Checking – The bane of my existence!

As students in my PKI training classes know, one of the areas I am a vocal about is the blind use of the CRLF_REVCHECK_IGNORE_OFFLINE setting in a PKI environment. I am so adamantly against the use of this setting, I personally refuse to ever explicitly

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  • April 20, 2017

Certificate Validation Internet Explorer PKI Revocation RFCs Watch Out

What Your Browser Doesn’t Tell You Can Hurt You – Revocation and Internet Explorer

One of the topics I have been using as an example of revocation checking behavior in my PKI In-Depth class is the interesting case of Internet Explorer (IE) and its revocation behavior. Let’s take a moment and have you think about your assumption of how

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  • February 11, 2017

Certificate Templates Certificate Validation Hash Algorithms Known Issues PKI

RSASSA-PSS – Why Your Certificate Can’t Be Validated

A common theme has been arriving in my email box lately as well as many online forums. Consistently people are reporting error with certificates issued by their internal Microsoft ADCS based CAs. Problems range from Apple devices, Firefox, appliances and many other systems. When people

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  • February 1, 2017

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