SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
The purpose of the DES algorithm is to encrypt (encipher) or decrypt (decipher) binary coded information. Encrypting data converts it to an unintelligible form called cipher text. Decrypting cipher text converts the data back to its original form called plain text. DES is a symmetrical algorithm in that the encryption and decryption keys are identical. Each triple DES encrypt or decrypt operation is a compound of DES encrypt and decrypt operations.
The DES accelerator includes the following main features: