User guide

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

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Global Definitions Global Definitions

4.6.2.7 DES_CRYPT_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; /* 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 */

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

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 13. DES_CRYPT_REQ Valid Descriptors (opId)

Descriptors Value Function Description

DPD_SDES_ECB_ENCRYPT 0x2600 Load encrypted context from a dynamic channel to

encrypt in single DES using ECB mode

DPD_SDES_ECB_DECRYPT 0x2601 Load encrypted context from a dynamic channel to

decrypt in single DES using ECB mode

DPD_TDES_ECB_ENCRYPT 0x2602 Load encrypted context from a dynamic channel to

decrypt in single DES using ECB mode

DPD_TDES_ECB_DECRYPT 0x2603 Load encrypted context from a dynamic channel to

encrypt in single DES using ECB mode