28. Cryp_des_ecb_padding

28.1. Function description:

This demo shows the operation of cryptographic processor, algorithm is DES, algorithm mode including ECB.

  • Configure and prepare the plaintext data firstly, then start the encryption to get ciphertext data using polling mode.

  • Compare the encryption result with the standard to verify the function of encryption.

  • Configure & start the decryption using polling mode, the ciphertext data is comming from encryption result.

  • Compare the decryption result with the plaintext to verify the function of decryption.

Note

If the length of plaintext is not integer to the block length, we need to select right padding mode to encrypt, otherwise default is no padding mode; for decrypt, make sure the ciphertext length is multiple of block length and need to select no padding mode.

28.2. Test result:

After the operation of encryption and decryption, if the encryption data is same as the standard & the decryption result is same as the plaintext data, then print pass, if not print fail.

28.3. IO connection:

None