Wargames My 2023
Writeup for the challenges I solved in Wargames My 2023
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ABOH 2023
Writeup for all the crypto challenges I solved in Apu Battle of Hackers 2023 (ASEAN Category).
ACSC 2023
Writeup for the challenges I solved in ACSC. I mainly focused on Crypto challenges.
Wargames My 2022
Writeup for the challenges I solved in Wargames My 2022
Sagemath Guide
Sagemath is a powerful mathematical tool that is built on top of python. It has a large community and have many convenient built-in math functions. I often u...
Swap on Curve
This is the fourth crypto challenge from ASCS 2021. It is an interesting question related to ECC.
CBCBC
This is the second crypto challenge from ASCS 2021. It tried to use double AES CBC to protect against padding oracle attack.
RSA stream
This is the first crypto challenge from ASCS 2021. It used Stream cipher with RSA to encrypt a message.
Space Noise
This is a challenge from Cryptography section of Standcon 2021. The challenge wants us to guess the encryption scheme
Ingenuity Installer
This is a challenge from Cryptography section of Standcon 2021. The challenge wants us to forge a signature of a zip file.