void smpGenerateLtk(smpCcb_t *pCcb)
{
uint8_t *p;
smpScratch_t *pScr = pCcb->pScr;
/* generated results are stored in scratch buffer */
p = pScr->keyInd.keyData.ltk.key;
/* generate LTK from random number */
SecRand(p, pScr->keyInd.encKeyLen);
p += pScr->keyInd.encKeyLen;
/* set remaining key bytes to zero */
memset(p, 0, (SMP_KEY_LEN - pScr->keyInd.encKeyLen));
/* use existing random number stored in scratch buf b4 for EDIV and RAND */
BYTES_TO_UINT16(pScr->keyInd.keyData.ltk.ediv, pScr->buf.b4);
memcpy(pScr->keyInd.keyData.ltk.rand, &pScr->buf.b4[2], SMP_RAND8_LEN);
/* pass key to app via DM */
pScr->keyInd.type = DM_KEY_LOCAL_LTK;
pScr->keyInd.secLevel = (pCcb->auth & SMP_AUTH_MITM_FLAG) ? DM_SEC_LEVEL_ENC_AUTH : DM_SEC_LEVEL_ENC;
pScr->keyInd.hdr.event = DM_SEC_KEY_IND;
DmSmpCbackExec((dmEvt_t *) &pScr->keyInd);
}
void smprActProcPairCnfCalc1(smpCcb_t *pCcb, smpMsg_t *pMsg)
{
smprActProcPairCnf(pCcb, pMsg);
/* get random number to scratchpad */
SecRand(pCcb->pScr->buf.b4, SMP_RAND_LEN);
/* execute calculation */
smpCalcC1Part1(pCcb, pCcb->pScr->buf.b1, pCcb->pScr->buf.b4);
}
void smpActPairCnfCalc1(smpCcb_t *pCcb, smpMsg_t *pMsg)
{
/* store authentication data */
smpActStorePin(pCcb, pMsg);
/* get random number to scratchpad */
SecRand(pCcb->pScr->buf.b4, SMP_RAND_LEN);
/* execute calculation */
smpCalcC1Part1(pCcb, pCcb->pScr->buf.b1, pCcb->pScr->buf.b4);
}
