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written 4.8 years ago by
yashbeer
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Triple DES with 2-keys
It uses three stages of DES for encryption and decryption. The 1st, 3rd stage use $K_1$ key and 2nd stage use $K_2$ key.
To make triple DES compatible with single DES, the middle stage uses decryption in the encryption side and encryption in the decryption side. …
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