Request
| Index Word
|
Description
|
| 0
|
Header code [0x00050284]
|
| 1
|
Input buffer size
|
| 2
|
Output buffer size
|
| 3
|
Total CBC-MAC associated data, in bytes.
|
| 4
|
Total data size, in bytes.
|
| 5
|
MAC size in bytes.
|
| 6-8
|
Nonce
|
| 9
|
Algorithm Type (0..5)
|
| 10
|
Key Type (0..7)
|
| 11
|
(inbufsize<<8) | 0x4
|
| 12
|
Source pointer
|
| 13
|
(outbufsize<<8) | 0x14
|
| 14
|
Destination pointer
|
Response
| Index Word
|
Description
|
| 0
|
Header code
|
| 1
|
Result code
|
MAC
For AES-CCM encryption, the output MAC is written to outputbufptr+(totaldatasize). For AES-CCM decryption, the input MAC is located at inputbufptr+(totalassocdata+totaldatasize). For AES-CCM decryption when the calculated MAC is invalid, error-code 0xC9010401 is returned.
Description
This is similar to PSPXI:EncryptDecryptAes, except this command is only used for AES-CCM. For AES-CCM encryption, the output buffer size must include the MAC, for AES-CCM decryption the input buffer size must include the MAC.