Posts by Vadims Podāns
Request extension processing in Active Directory Certification Authority
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,…
Read MoreADCS certificate serial number generation algorithms – a comprehensive guide
Hello S-1-1-0, @Crypt32 is again on a failboatboard with new blog post. Today I will share information about a little-known portion in configuration of Microsoft ADCS Certification Authority – serial number generation algorithm. This article assumes big-endian encoding Certificate serial number requirements Every X.509 conforming CA generates a unique serial number for each issued certificate,…
Read MoreADCS Certification Authority Database query numbers
Hello everyone, I’m back again and today I want to share some thoughts on retrieving massive results from ADCS Certification Authority database. Point of interest As a part of my ongoing project I had to collect database statistics (simply, number of revoked, issued, pending, failed, denied requests) and my concern was query performance on relatively…
Read MorePowerShell PKI (PSPKI) 3.7 enhancements – Certification Authority API (part 1)
Hello S-1-1-0, here is another blog post in the PSPKI v3.7 enhancement blog series. Today I will talk about another interesting work done in PSPKI. Intro In one of my previous posts, I’ve outlined a very general roadmap for PKI library and the move towards the .NET Core. There are several obstacles for the move…
Read MorePowerShell PKI (PSPKI) 3.7 enhancements – security descriptors
Today I’m starting a series of blog posts where I will explore new features we have added to PowerShell PKI module, version 3.7. First post is dedicated to security descriptors. Major changes in PSPKI Within PSPKI module, we had an ability to manage security descriptors (access control lists) for Certification Authority can certificate template objects.…
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