User guide

MOTOROLA MPC184/MPC185 Security Co-Processor Software User’s Guide 29

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Global Definitions

4.6.4 Hash Request Structures

The following sections provide structure definitions for hash requests.

4.6.4.1 HASH_LOADCTX_STATIC_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 ctxBytes;

unsigned char* ctxData;

Dynamic channels are not valid for this request. A channel value of zero is invalid.

NUM_MDHA_STATIC_LOADCTX_DESC defines the number of descriptors within the

DPD_HASH_SA_LDCTX_GROUP that use this request.

DPD_HASH_SA_LDCTX_GROUP (0x4000) defines the group for all descriptors within this request.

Table 20. HASH_LOADCTX_STATIC_REQ Valid Descriptors (opId)

Descriptors Value Function Description

DPD_SHA256_SA_LDCTX 0x4000 Load context in a static channel to using an SHA-256

hash algorithm

DPD_MD5_SA_LDCTX 0x4001 Load context in a static channel to using an MD5 hash

algorithm

DPD_SHA_SA_LDCTX 0x4002 Load context in a static channel to using an SHA-1 hash

algorithm