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

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Individual Request Type Descriptions

4.5 HMAC Requests

4.5.1 HMAC_PAD_REQ

COMMON_REQ_PREAMBLE

unsigned long keyBytes;

unsigned char *keyData;

unsigned long inBytes;

unsigned char *inData;

unsigned long outBytes; /* length is fixed by algorithm */

unsigned char *outData;

NUM_HMAC_PAD_DESC defines the number of descriptors within the DPD_HASH_LDCTX_HMAC_ULCTX_GROUP that

use this request.

DPD_HASH_LDCTX_HMAC_ULCTX_GROUP (0x4A00) defines the group for all descriptors within this request.

Table 12. HASH_REQ Valid Descriptors (0x4500) (opId)

Descriptors Value Function Description

DPD_SHA256_LDCTX_HASH_PAD_ULCTX 0x4500 Compute digest with pre-padded data using an

SHA-256 hash algorithm then store the resulting

context

DPD_MD5_LDCTX_HASH_PAD_ULCTX 0x4501 Compute digest with pre-padded data using an MD5

hash algorithm then store the resulting context

DPD_SHA_LDCTX_HASH_PAD_ULCTX 0x4502 Compute digest with pre-padded data using an

SHA-1 hash algorithm then store the resulting context

DPD_SHA256_LDCTX_IDGS_HASH_PAD_ULCTX 0x4503 Compute digest with pre-padded data using an

SHA-256 IDGS hash algorithm then store the

resulting padded context

DPD_MD5_LDCTX_IDGS_HASH_PAD_ULCTX 0x4504 Compute digest with pre-padded data using an MD5

IDGS hash algorithm then store the resulting padded

context

DPD_SHA_LDCTX_IDGS_HASH_PAD_ULCTX 0x4505 Compute digest with pre-padded data using an

SHA-1 IDGS hash algorithm then store the resulting

padded context

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Freescale-semiconductor SEC2SWUG Manual de usuario Pagina 18