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• X.509 Certificates Explained: Uses, Fields, Certificate Authoritiess, and Certificate Transparency · guides
• NiteCTF Crypto Writeup: R Stands Alone · ctf
• Secure Source (Crypto, Hard 500) — Predictable RNG in ECDSA-JWT (Incomplete Writeup) · ctf
• RSA: How it works, and where things can go wrong · cryptography
• Bash Essentials: Streams, Control Operators, Arguments, Tests, and Functions · linux
• Hello Linux · linux
• GnuGPG - Cheatsheet · cheatsheets
• DD - Cheatsheet · cheatsheets
• VigenereSolver-ng · projects
• OS Enumeration · pentesting
• x86 Basics: Opcodes, Operands, and a Few Core Instructions · ctf
• Hash vegas - NiteCTF2025 writeup · ctf