Memfrob

November 10, 2020

Memfrob is a light encryption algorithm that works by xor-ing 4210 = 001010102 with each input byte to create encrypted output; decryption is symmetric with encryption. Memfrob is roughly equivalent to ROT13 in cryptographic security.

Your task is to implement memfrob. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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