The mystery of “Valid existing certificate” setting in ADCS certificate templates – demystified

This is a follow-up of “Certificate renewal request is placed in pending state when Valid Existing Certificate is selected in certificate template” blog post and final nail into the subject. Let’s re-iterate the problem. ADCS Certificate Templates provide configuration for issuance requirements, which allows you to forcibly put request in pending state (no automatic issuance)…

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Certificate renewal request is placed in pending state when Valid Existing Certificate is selected in certificate template

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Hello S-1-1-0, here is a new blog post in a long time. Today I want to talk about the issue when “Valid existing certificate” does not bypass CA Manager approval and/or enrollment agent requirement during certificate renewal in Microsoft CA. In certificate template settings, Issuance Requirements we can configure additional requirements for enrollment and re-enrollment…

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Request extension processing in Active Directory Certification Authority

Vadims Podans PKI Developer

Hello S-1-1-0, Crypt32 is on air! Today I want to explain how ADCS Certification Authority processes extensions from incoming requests and certificate templates. Every X.509 V3 certificate contains certificate extensions to include extra information about certificate owner, issuer, intended usages, limitations/constraints. CA utilize multiple sources to generate extension list to be included in signed certificate,…

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You cannot download CA certificate from web enrollment pages

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As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. When you try to download CA certificate from web enrollment pages you get a prompt message with unreadable proposed file name: Do you want to save certnew_cer?ReqID=CACert&Renewal=1&Enc=bin (1,09 KB) from <ServerName> And when you press…

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Web server certificate enrollment with SAN extension

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As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. Many of windows administrators requires to setup SSL on their web servers and mostly they wish to use certificates with the Subject Alternative Name extension that allows to map a single certificate to a multiple…

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