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Name: Yury Strozhevsky

Type: User

Bio: Freelancer, C++ expert, JS expert, PDF expert, PKI expert and many more. Specialization - developing impossible things.

Twitter: YuryStrozhevsky

Location: Russia

Blog: http://www.strozhevsky.com

Yury Strozhevsky

Bio

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

Skills

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

Articles

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 hancock.ink

Mics

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

Yury Strozhevsky's Projects

asn1-2008-free-test-suite

My own realization of ASN.1:2008 test suite

asn1.js

The "author's version" of ASN1.js library.

base64

Simple BASE-64 coder/decoder (with OS-independant code)

bytestream.js

The "author's version" of ByteStream.js library.

c-plus-plus-asn.1-2008-coder-decoder

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

cades.js

The "author's version" of CAdES.js library.

certmarshalcredentials

How to user certificate in AcquireCredentialsHandle and other functions

createobjecttree

This project is all about composing full "object tree list" for arbitrary ActiveDirectory element and then checking access via AuthzAccessCheck routine

CTjs is a full set of classes necessary to work with any kind of Certificate Transparency log (V1 as from RFC6962, or V2 as from RFC6962-bis). In CTjs you could find all necessary validation/verification functions for all related data shipped with full-featured examples showning how to validate/verify. Also in scope of CTjs I made code showing example from RFC6962 item 2.1.3 on a real data from real Certificate Transparency log.

differences

Code for my atricle about using finite differences for polinom calculations

extendedrights

How to retrive all information about Windows Extended Rights via LDAP

font.js

The "author's version" of ASN1.js library.

jsutils

The "author's version" of pvutils library. The jsutils is a set of various functions useful in other my projects.

kerberosaes

C++ implementation for Kerberos AES encryption/checksum algorithms

ntds_mapping

The project is about making a full list of mapping between lDAPDisplayName and names of columns inside datatable in NTDS.DIT file

opentype.js

Read and write OpenType fonts using JavaScript.

pki.js

The "author's version" of PKI.js library.

run-pe---run-portable-executable-from-memory

Code that allows running another windows PE in the same address space as the host process.

s4uwhoami

Simple project shows how to use S4U2Self in Windows for making a "super whoami"

tiny-inflate

A tiny inflate implementation

xkerb

C++ library with helpers for Windows SSPI

xsec

XSEC is a project allowing everyone to study very big part of information about Windows Access Control very quickly and by real life examples. Making access tokens with unlimited number of groups and privileges, adjust privileges, usage of AccessCheckByTypeResultListAndAuditAlarmByHandle function, parsing all data related to Access Control, store all to XML and many more.