Posts

• RITSEC CTF 2018 - CictroHash
  writeups Nov 21, 2018

  Crypto - 150 Points

• Cheatsheet - Flask & Jinja2 SSTI
  cheatsheet Sep 3, 2018

  Flask & Jinja2 SSTI

• Padding Oracle attack against Telegram Passport
  writeups Aug 4, 2018

  Since the Telegram Passport came out, I tried to analyze its protocol to understand whether the encryption of users’ data was strong and properly implemented.

• TAMU CTF 2018 - LarryCrypt
  writeups Feb 27, 2018

  Reverse - 200 Points

• TAMU CTF 2018 - SimpleDES
  writeups Feb 26, 2018

  Crypto - 125 Points

• InsomniHack Teaser CTF 2018 - Rule86
  writeups Jan 23, 2018
• CodeBlue CTF 2017 - Common Modulus 1,2,3
  writeups Nov 13, 2017
• Square CTF 2017 - Reading between the lines
  writeups Oct 13, 2017

  Forensics - 100 Points

• DefCamp CTF 2017 - ForgotMyKey
  writeups Oct 8, 2017

  Crypto - 100 Points

• SECT CTF 2017 - Bad AES
  writeups Sep 15, 2017

  Crypto - 100 Points

• PlaidCTF 2017 - SHA-4
  writeups Apr 24, 2017

  Web - 300 Points

• PlaidCTF 2017 - Echo
  writeups Apr 24, 2017

  Web - 200 Points

• INS'HACK 2017 - Forensics 225 Lost File
  writeups Apr 14, 2017

  Lost File

  Forensics - 225 Points

• AlexCTF 2017 - SC2 Cutie Cat
  writeups Feb 5, 2017

  SC2: Cutie Cat

  Scripting - 150 Points

• AlexCTF 2017 - CR4 Poor RSA
  writeups Feb 5, 2017

  CR4 Poor RSA

  Crypto - 200 Points

• AlexCTF 2017 - CR3 What is this encryption?
  writeups Feb 5, 2017

  CR3 What is this encryption?

  Crypto - 150 Points

• AlexCTF 2017 - CR2 Many time secrets
  writeups Feb 5, 2017

  CR2 Many time secrets

  Crypto - 100 Points

• InsomniHack Teaser CTF 2017 - cryptoquizz
  writeups Jan 25, 2017

  cryptoquizz

  Crypto - 50 Points

• Cheatsheet - How to write a good Write-up
  cheatsheet Dec 19, 2016

  How to write a good Write-up

• Cheatsheet - Crypto 101
  cheatsheet Dec 11, 2016
• QIWI CTF 2016 - PPC 100_2
  writeups Nov 18, 2016

  PPC 100_2

  PPC - 100 Points

• QIWI CTF 2016 - PPC 100_1
  writeups Nov 18, 2016

  PPC 100_1

  PPC - 100 Points

• QIWI CTF 2016 - Crypto 400_1
  writeups Nov 18, 2016

  Crypto 400_1

  Crypto - 400 Points

• QIWI CTF 2016 - Crypto 300_1
  writeups Nov 18, 2016

  Crypto 300_1

  Crypto - 300 Points

• sCTF Q1 2016 - President
  writeups Jun 5, 2016

  President

  Web - 40 Points

• sCTF Q1 2016 - Control Panel
  writeups Jun 5, 2016

  Control Panel

  Web - 40 Points

• sCTF Q1 2016 - Vertinet
  writeups Apr 20, 2016

  Vertinet

  Cryptography - 140 Points

• sCTF Q1 2016 - Verticode
  writeups Apr 20, 2016

  Verticode

  Cryptography - 90 Points

• sCTF Q1 2016 - Failed Compression
  writeups Apr 18, 2016

  Failed Compression

  Forensics - 80 Points

• sCTF Q1 2016 - Pesky Permutation
  writeups Apr 17, 2016

  Pesky Permutations

  Algorithmic - 170 Points

• InsomniHack Teaser CTF 2016 - Bring The Noise
  writeups Jan 18, 2016

  Bring The Noise

  Crypto - 200 Points

• Cheatsheet - Socket Basics for CTFs
  cheatsheet Dec 3, 2015

  Socket Basics for CTFs

• Cheatsheet - Steganography 101
  cheatsheet Nov 30, 2015

  Steganography 101

• 9447 CTF 2015 - randBox
  writeups Nov 29, 2015

  randBox

  Crypto - 120 Points

• HackDatKiwiCTF 2015 - KiwiForum 2
  writeups Nov 25, 2015

  KiwiForum 2

  Web - 250 Points

• HackDatKiwiCTF 2015 - Phone Lock 1
  writeups Nov 24, 2015

  Phone Lock

  Web - 50 Points

• HackDatKiwiCTF 2015 - Math Quiz
  writeups Nov 24, 2015

  Math Quiz

  Web - 150 Points

• HackDatKiwiCTF 2015 - Gaychal
  writeups Nov 24, 2015

  Gaychal

  Web - 80 Points

• HackDatKiwiCTF 2015 - SSL Sniff 1
  writeups Nov 22, 2015

  SSL Sniff 1

  Forensics - 50 Points

• HackDatKiwiCTF 2015 - KiwiForum 1
  writeups Nov 22, 2015

  KiwiForum 1

  Web - 120 Points

• HackDatKiwiCTF 2015 - Vigenere 1 / 2
  writeups Nov 21, 2015

  Vigenere 1 / 2

  Crypto - 50/80 Points

• Cheatsheet - Compiling/Patching SSLDump for decrypting TLS1.1/1.2
  cheatsheet Nov 21, 2015

  Compiling/Patching SSLDump for decrypting TLS1.1/1.2

• PoliCTF 2015 - John the Traveller
  writeups Jul 12, 2015

  John The Traveller

  Web - 100 Points

• PoliCTF 2015 - John the Referee
  writeups Jul 12, 2015

  John The Referee

  Web - 150 Points

• PoliCTF 2015 - It's Hungry
  writeups Jul 12, 2015

  It’s Hungry

  Forensics - 100 Points

• PoliCTF 2015 - Hard Interview
  writeups Jul 12, 2015

  Hard Interview

  GrabBag - 50 Points

• PoliCTF 2015 - Hanoi as a Service
  writeups Jul 12, 2015

  Hanoi as a Service

  Pwnable - 50 Points

• PoliCTF 2015 - Crack Me If You Can
  writeups Jul 12, 2015

  Crack Me If You Can

  Reversing - 100 Points