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    Je1al/README.md
    Jelaletdin Seytjanov — Cybersecurity Engineer

    LinkedInEmailProfile views

    I build security-critical systems and cryptographic primitives from scratch —
    the fastest way to understand how something breaks is to implement, attack, then defend it.

    ~/featured

    ProjectWhat it isStack
    SHA-256Dependency-free C++17 SHA-2 toolkit — SHA-224/256, HMAC, HKDF, PBKDF2 and HOTP/TOTP, all from scratch and validated against NIST/RFC vectors with fuzzing & CIC++17
    car-security-simulatorAutomotive CAN-bus security platform — AUTOSAR SecOC, intrusion detection, UDS Security Access, attack simulationPython
    SecureIoT-ProtocolMutually authenticated secure channel for IoT — ephemeral X25519 + ChaCha20-Poly1305 + HKDF, sliding-window anti-replay, all crypto from scratch and RFC-validatedC++17
    stb-34.101.31The STB 34.101.31 (Bel-T) standard — block cipher, hashing, MAC and AEAD modes, validated against the standard's test vectorsC++
    network-traffic-analyzerPCAP parsing, protocol decoding, anomaly detection and an HTML reporting dashboardPython
    $ ls ~/arsenal


    $ cat ~/focus.md
    • Applied cryptography — implementing primitives and protocols from scratch, validated against RFC/NIST test vectors
    • Network & traffic security — packet analysis, protocol dissection, anomaly detection
    • Embedded / automotive security — CAN bus, AUTOSAR SecOC, UDS, intrusion detection
    • Offensive security — exploit fundamentals and tooling (currently sharpening)
    $ git log --stat — GitHub activity
    contribution snake

    Pinned Loading

    1. stb-34.101.31stb-34.101.31Public

      Implementation of the STB 34.101.31 (Bel-T) cryptographic standard — block cipher, hashing and modes (C++).

      C++

    2. car-security-simulatorcar-security-simulatorPublic

      Automotive CAN-bus security research platform: AUTOSAR SecOC, CAN intrusion detection, UDS/ISO-TP Security Access, and attack simulation (replay/tamper/inject/DoS/fuzz). Runs in-process or on real …

      Python 1

    3. SecureIoT-ProtocolSecureIoT-ProtocolPublic

      Secure-channel protocol for IoT in C++17: mutually authenticated handshake (ephemeral X25519 + PSK), ChaCha20-Poly1305 record layer, HKDF key schedule, and sliding-window anti-replay — crypto imple…

      C++

    4. RSARSAPublic

      RSA from scratch in C++ — standards-aligned padding (OAEP, PSS) with an attack lab (Hastad, Wiener, Fermat, common-modulus) and OpenSSL interoperability tests.

      C++

    5. SHA-256SHA-256Public

      Dependency-free, header-only C++17 SHA-2 toolkit built from scratch: SHA-224/256, HMAC, HKDF, PBKDF2 and HOTP/TOTP, validated against NIST/RFC test vectors with fuzzing, sanitizers and CI.

      C++