homeprojectsblogabout
  • github

  • email

  • x / twitter

  • linkedin

  • personal docs

  • rss

© 2026 Yehezkiel Wiradhika

Capture The Flags (CTFs)

A compilation of CTF writeups and solutions covering Web Exploitation, Cryptography, Reverse Engineering, Forensics, and PWN.

PortSwigger Web Security Academy Writeups
Security Writeup

PortSwigger Web Security Academy Writeups

Detailed solutions and methodology writeups for PortSwigger Web Security Academy labs, covering SQLi, XSS, CSRF, SSRF, Broken Authentication, and manual Burp Suite testing.

Web ExploitationBurp SuitePortSwiggerSQLiXSS
→
CTFtime Competition Writeups
CTF Writeup

CTFtime Competition Writeups

Writeups and exploit scripts for real-world CTF competitions tracked on CTFtime, including HITCON, ImaginaryCTF, CTFZone, and PicoCTF.

CTFtimeHitconImaginaryCTFCTFZoneWeb Exploitation
→
PicoCTF Writeups & Fundamentals
CTF Writeup

PicoCTF Writeups & Fundamentals

Comprehensive solutions and learning notes for PicoCTF challenges across Web Exploitation, Cryptography, Forensics, Reverse Engineering, and Binary Exploitation.

PicoCTFWriteupCTF FundamentalsPythonBash
→
Applied Cryptography & CryptoHack Solutions
Cryptography Docs

Applied Cryptography & CryptoHack Solutions

Notes, writeups, and implementations of classical and modern cryptographic algorithms: AES, RSA, DES, Diffie-Hellman, SHA, digital signatures, and CryptoHack challenges.

CryptographyCryptoHackRSAAESDiffie-Hellman
→