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Yury Strozhevsky


Was born in 1976, professional developer since 1998. Working in on security-related projects since 2003.


  • Senior C++ developer (using it since 1995, got certified by Brainbench in 2005 as "C++ Master Degree")
  • Senior JavaScript backend developer
  • Middle C# developer
  • PKI/ASN.1 ninja


  • Using of Crypto API (RUS)
  • ASN.1 By Simple Words (RUS, ENG),
  • Free ASN.1:2008 compliance test suite (RUS, GitHub)
  • Words about CAdES formats (RUS)
  • Kerberos by simple words (RUS)
  • All you want to know about ACL in Active Directory (RUS)

I am the author for following projects

  • extendedRights How to retrive all information about Windows Extended Rights via LDAP
  • createObjectTree This project is all about composing full "object tree list" for arbitrary ActiveDirectory element and then checking access via AuthzAccessCheck routine
  • NTDS_mapping The project is about making a full list of mapping between lDAPDisplayName and names of columns inside datatable in NTDS.DIT file
  • KerberosAES C++ implementation for Kerberos AES encryption/checksum algorithms
  • XKERB C++ library with helpers for Windows SSPI
  • certMarshalCredentials How to user certificate in AcquireCredentialsHandle and other functions
  • S4Uwhoami Simple project shows how to use S4U2Self in Windows for making a "super whoami"
  • XSEC Utility for parsing/making any ALCs/ACEs/tokens in Windows + full test suite for it
  • CryptoARM Famous crypto-related software using in Russia. Made first versions from v0 to v2.5. Since 2004 have no relations to the product
  • PKIjs Pure JavaScript library implementing the formats that are used in PKI applications, 900+ stars on GitHub
  • ASN1.js Pure JavaScript library implementing a full ASN.1 BER decoder and encoder, 190+ stars on GitHub
  • CAdES.js Implementation of CAdES (CMS Advanced Electronic Signatures)in pure Javascript
  • ByteStream.js All functions related to bytes/bits manipulations
  • C-plus-plus-ASN.1-2008-coder-decoder Initial C++ version of ASN1.js
  • CTjs Full set of classes necessary to work with any kind of Certificate Transparency log
  • Font.js Library helping parse/encode and manipulate TrueType font files. Working on making it OpenType compartible
  • PAdES-related library (private repository at the moment). Everything about PDF parsing/making/signing/verification etc. Already working on


  • 👯 I’m looking to collaborate on any great PKI/security related projects
  • 📫 How to reach me:


  1. PeculiarVentures/PKI.js PeculiarVentures/PKI.js Public

    PKI.js is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto…

    TypeScript 1.2k 200

  2. PeculiarVentures/ASN1.js PeculiarVentures/ASN1.js Public

    ASN1js is a pure JavaScript library implementing a full ASN.1 BER decoder and encoder.

    TypeScript 257 55

  3. PeculiarVentures/ByteStream.js PeculiarVentures/ByteStream.js Public

    ByteStream.js is a set of classes manipulating bytes and bits with optimized for speed perfomance

    TypeScript 10 9

  4. ASN1-2008-free-test-suite ASN1-2008-free-test-suite Public

    My own realization of ASN.1:2008 test suite

    17 1

  5. C-plus-plus-ASN.1-2008-coder-decoder C-plus-plus-ASN.1-2008-coder-decoder Public

    Free C++ ASN.1:2008 coder/decoder

    C++ 25 5