| AES Model |
| ========= |
| |
| This directory contains a basic C model of the AES unit targeting functional |
| verfication of the AES unit during the design phase as well as later design |
| verification. |
| |
| Besides the actual model, this directory also contains an example application |
| that: |
| - Shows how to interface the C model. |
| - Allows printing of intermediate results for debugging. |
| - Checks the output of the model versus the exptected results. |
| - Checks the output of the model versus the output of the BoringSSL/OpenSSL |
| library. |
| |
| How to build and run the example |
| -------------------------------- |
| |
| Open the makefile and update the variable BORING_SSL_PATH pointing to the |
| BoringSSL directory on your machine. If make cannot find the crypto library |
| in that directory, the example is automatically linked to OpenSSL instead |
| of BoringSSL. |
| |
| Simply execute |
| |
| ```make``` |
| |
| to build the example and |
| |
| ```./aes_example KEY_LEN_BYTES``` |
| |
| to run the example. The optional argument KEY_LEN_BYTES determines the key |
| length in bytes and is either 16, 24, or 32 for AES-128, 192 or 256, |
| respectively. By default, a key length of 16 Bytes is used (AES-128). |
| |
| Details of the model |
| -------------------- |
| |
| - aes.c/h: contains the C model of the AES unit |
| - crypto.c/h: contains BoringSSL/OpenSSL library interface functions |
| - aes_example.c/h: contains the example application including test |
| input and expected output |
