Recent Posts

Live From Serangoon Road

This is the third challenge from the Crypto section of CTF SG 2021. The challenge needs us to break a Stream Cipher that uses 4 LFSR.

GRIC

This is the second challenge from the Crypto section of CTF SG 2021. The challenge needs us to find out the checksum letter when given a 10 digit number.

Long Long Encrypt

This is the first challenge from the Crypto section of CTF SG 2021. The challenge introduced a different variation of RSA that uses \(n = p^{q}\)

YALA (PART 1)

This is the fourth challenge from the Mobile section of DSO-NUS CTF 2021. The challenge needs us to brute force the password for the user.

Sekret

This is the second challenge from the Mobile section of DSO-NUS CTF 2021. The challenge needs us to find the password of a user using OSINT.