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Je1al/README.md
Jelaletdin Seytjanov — Cybersecurity Engineer

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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

Project What it is Stack
SHA-256 Dependency-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 & CI C++17
car-security-simulator Automotive CAN-bus security platform — AUTOSAR SecOC, intrusion detection, UDS Security Access, attack simulation Python
SecureIoT-Protocol Mutually authenticated secure channel for IoT — ephemeral X25519 + ChaCha20-Poly1305 + HKDF, sliding-window anti-replay, all crypto from scratch and RFC-validated C++17
stb-34.101.31 The STB 34.101.31 (Bel-T) standard — block cipher, hashing, MAC and AEAD modes, validated against the standard's test vectors C++
network-traffic-analyzer PCAP parsing, protocol decoding, anomaly detection and an HTML reporting dashboard Python

$ 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

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  1. stb-34.101.31 stb-34.101.31 Public

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

    C++

  2. car-security-simulator car-security-simulator Public

    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-Protocol SecureIoT-Protocol Public

    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. RSA RSA Public

    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-256 SHA-256 Public

    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++