User guide

MOTOROLA MPC184/MPC185 Security Co-Processor Software User’s Guide 39

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Global Definitions

4.6.7 Kasumi Request Structures

The following section provides structure definitions for Kasumi requests.

4.6.7.1 KEA_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 ivBytes; /* 0 or 8 bytes */

unsigned char* ivData;

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_KEA_CRYPT_DESC defines the number of descriptors within the DPD_KEA_CRYPT_GROUP that use

this request.

DPD_KEA_CRYPT_GROUP (0xA000) defines the group for all descriptors within this request.

Table 30. KEA_CRYPT_REQ Valid Descriptors (opId)

Descriptors Value Function Description

DPD_KEA_f8_UPLINK_CRYPT 0xA000 Perform an f8 key exchange algorithm uplink

DPD_KEA_f8_DOWNLINK_CRYPT 0xA001 Perform an f8 key exchange algorithm downlink

DPD_KEA_f9_UPLINK_CRYPT 0xA002 Perform an f9 key exchange algorithm uplink

DPD_KEA_f9_DOWNLINK_CRYPT 0xA003 Perform an f9 key exchange algorithm downlink