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The graph above illustrates the of T-functions: bit only depends on bits , allowing for the bit-by-bit recovery used in the exploit.

-th bits of the input [3]. While T-functions are often used to create long-period sequences, improper implementation can lead to significant linear vulnerabilities. Key Vulnerabilities ti_moe_more

is a cryptographic challenge from the 2024 BuckeyeCTF , focusing on exploiting a flawed implementation of a Custom T-Function based stream cipher [1, 2]. Challenge Overview The graph above illustrates the of T-functions: bit

The challenge provides a Python script that encrypts a flag using a custom-built keystream generator. The core of the generator relies on a , which is a type of mapping where the -th bit of the output only depends on the ti_moe_more