Obtain algorithm used to generate 16-bit XOR keys for encrypted media files

I need assistance with obtaining the algorithm used to calculate the 16-bit XOR keys used to encrypt media files on an embedded audio player. I've managed to decode some blocks and I have those keys, but I require help with figuring out the algorithm used to calculate/generate the keys... (Budget: $30 - $250 USD, Jobs: Algorithm, Cryptography, Encryption, Reverse Engineering)

Mar 11, 2025 - 14:16
 0
Obtain algorithm used to generate 16-bit XOR keys for encrypted media files
I need assistance with obtaining the algorithm used to calculate the 16-bit XOR keys used to encrypt media files on an embedded audio player. I've managed to decode some blocks and I have those keys, but I require help with figuring out the algorithm used to calculate/generate the keys... (Budget: $30 - $250 USD, Jobs: Algorithm, Cryptography, Encryption, Reverse Engineering)