Freescale Semiconductor SEC2SWUG specifications ARC4 Requests, Descryptreq, 1 ARC4LOADCTXCRYPTREQ

		Individual Request Type Descriptions
Table 7. DES_CBC_CRYPT_REQ Valid Descriptors (opId)
Descriptors	Value	Function Description
DPD_SDES_CBC_CTX_ENCRYPT	0x2500	Load encrypted context from a dynamic channel to
		encrypt in single DES using CBC mode
DPD_SDES_CBC_CTX_DECRYPT	0x2501	Load encrypted context from a dynamic channel to
		decrypt in single DES using CBC mode
DPD_TDES_CBC_CTX_ENCRYPT	0x2502	Load encrypted context from a dynamic channel to
		encrypt in triple DES using CBC mode
DPD_TDES_CBC_CTX_DECRYPT	0x2503	Load encrypted context from a dynamic channel to
		decrypt in triple DES using CBC mode

4.2.2 DES_CRYPT_REQ

COMMON_REQ_PREAMBLE

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 */

NUM_DES_DESC defines the number of descriptors within the DPD_DES_ECB_GROUP that use this request. DPD_DES_ECB_GROUP (0x2600) defines the group for all descriptors within this request.

Table 8. DES_CRYPT_REQ Valid Descriptors (opId)

Descriptors	Value	Function Description
DPD_SDES_ECB_ENCRYPT	0x2600	Encrypt data in single DES using ECB mode
DPD_SDES_ECB_DECRYPT	0x2601	Decrypt data in single DES using ECB mode
DPD_TDES_ECB_ENCRYPT	0x2602	Encrypt data in triple DES using ECB mode
DPD_TDES_ECB_DECRYPT	0x2603	Decrypt data in triple DES using ECB mode

4.3 ARC4 Requests

4.3.1 ARC4_LOADCTX_CRYPT_REQ

COMMON_REQ_PREAMBLE

unsigned long inCtxBytes; /* 257 bytes */

SEC 2.0 Reference Device Driver User’s Guide, Rev. 0

Freescale Semiconductor PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE 15