Revision as of 22:22, 31 May 2013
Request
| Index Word
|
Description
|
| 0
|
Header code [0x00460104]
|
| 1
|
Output buffer size
|
| 2
|
Input buffer size
|
| 3
|
Block size
|
| 4
|
Nonce size, size 12 is used if this is >12.
|
| 5
|
(inputbufsize<<4) | 10
|
| 6
|
Input cleartext data buffer ptr
|
| 7
|
(outputbufsize<<4) | 12
|
| 8
|
Output encrypted data buffer ptr
|
Response
| Index Word
|
Description
|
| 0
|
Header code
|
| 1
|
Result code
|
Description
This encrypts the input data with AES-CCM using keytype2. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.
NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize, with size inputbuffersize-blocksize-noncesize. NS then uses PS:EncryptSignDecryptVerifyAesCcm with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.