User guide

MOTOROLA MPC184/MPC185 Security Co-Processor Software User’s Guide 37

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Global Definitions

4.6.5.3 HMAC_PAD_REQ

unsigned long opId;

unsigned long channel;

PMPC18x_NOTIFY_ROUTINE notify;

PMPC18x_NOTIFY_CTX pNotifyCtx;

PMPC18x_NOTIFY_ON_ERROR_ROUTINE notify_on_error;

MPC18x_NOTIFY_ON_ERROR_CTX ctxNotifyOnErr;

int status;

void* nextReq;

unsigned long keyBytes;

unsigned char* keyData;

unsigned long inBytes;

unsigned char* inData;

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

unsigned char* outData;

Dynamic channels are valid for this request. A channel value of zero is valid.

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 28. HMAC_PAD_REQ Valid Descriptors (opId)

Descriptors Value Function Description

DPD_SHA256_LDCTX_HMAC_ULCTX 0x4A00 Load context in a dynamic channel to using an

SHA-256 hash algorithm then get the resulting HMAC

context

DPD_MD5_LDCTX_HMAC_ULCTX 0x4A01 Load context in a dynamic channel to using an MD5

hash algorithm then get the resulting HMAC context

DPD_SHA_LDCTX_HMAC_ULCTX 0x4A02 Load context in a dynamic channel to using an SHA-1

hash algorithm then get the resulting HMAC context

DPD_SHA256_LDCTX_HMAC_PAD_ULCTX 0x4A03 Load context in a dynamic channel to using an

SHA-256 IDGS hash algorithm then get the resulting

padded HMAC context

DPD_MD5_LDCTX_HMAC_PAD_ULCTX 0x4A04 Load context in a dynamic channel to using an MD5

IDGS hash algorithm then get the resulting padded

HMAC context

DPD_SHA_LDCTX_HMAC_PAD_ULCTX 0x4A05 Load context in a dynamic channel to using an SHA-1

IDGS hash algorithm then get the resulting padded

HMAC context