We support ECB-DES, ECB-AES128, ECB-AES192, and ECB-AES256 modes in this implementation.
Attention
The bit-width of the interfaces we provide is shown as follows:
plaintext | ciphertext | cipherkey | IV | |
ECB-DES | 64 | 64 | 64 | 64 |
ECB-AES128 | 128 | 128 | 128 | 128 |
ECB-AES192 | 128 | 128 | 192 | 128 |
ECB-AES256 | 128 | 128 | 256 | 128 |
The algorithm flow chart is shown as follow:
As we can see from the chart, both encryption and decryption part of ECB mode has no dependencies, so the input block of each iteration needs no feedback data from its last iteration. Thus, both encryption and decryption part of ECB mode can achieve an initiation interval (II) = 1.