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SEC 2.0 Reference Device Driver User’s Guide, Rev. 0
14 PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE Freescale Semiconductor
Individual Request Type Descriptions
4 Individual Request Type Descriptions
4.1 Random Number Requests
4.1.1 RNG_REQ
COMMON_REQ_PREAMBLE
unsigned long rngBytes;
unsigned char* rngData;
NUM_RNGA_DESC defines the number of descriptors within the DPD_RNG_GROUP that use this request.
DPD_RNG_GROUP (0x1000) defines the group for all descriptors within this request.
4.2 DES Requests
4.2.1 DES_CBC_CRYPT_REQ
COMMON_REQ_PREAMBLE
unsigned long inIvBytes; /* 0 or 8 bytes */
unsigned char *inIvData;
unsigned long keyBytes; /* 8, 16, or 24 bytes */
unsigned char *keyData;
unsigned long inBytes; /* multiple of 8 bytes */
unsigned char *inData;
unsigned char *outData; /* output length = input length */
unsigned long outIvBytes; /* 0 or 8 bytes */
unsigned char *outIvData;
NUM_DES_LOADCTX_DESC defines the number of descriptors within the DPD_DES_CBC_CTX_GROUP that use this
request.
DPD_DES_CBC_CTX_GROUP (0x2500) defines the group for all descriptors within this request.
Table 6. RNG_REQ Valid Descriptor (opId)
Descriptor Value Function Description
DPD_RNG_GETRN 0x1000 Generate a series of random values