Simplified Data Encryption Standard

I implemented a simplified version of the Data Encryption Standard. William Stallings presents the specification for this particular version of the DES in an appendix to his Cryptography and Network Security. In this version, the plaintext and ciphertext are only 8 bits, the key is only 10 bits, there are only two S-boxes, and there are only two Feistel rounds.

My implementation is up at my GitHub.

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