static int _read_key_in_type_hdcp2(const char* keyname, void* databuf, const unsigned bufLen, char* decryptBuf)
{
const unsigned srcKeyLen = HDCP2_RX_KEY_TOTAL_LEN;
Hdcp2RxKeyFmt_t* pHdcp2RxKey = (Hdcp2RxKeyFmt_t*)decryptBuf;
const uint8_t* tmpName = NULL;
int tmpLen = 0;
if (bufLen < srcKeyLen) {
KM_ERR("hdcp2 rx len unsupported. want %d but only %d\n", srcKeyLen, bufLen);
return __LINE__;
}
ssize_t retLen = 0;
tmpName = (uint8_t*)keyname;
tmpLen = HDCP2_VERSION_LEN;
retLen = amlkey_read(tmpName, (uint8_t*)&pHdcp2RxKey->version, tmpLen);
if (retLen != tmpLen) {
KM_ERR ("Fail in read key[%s] at len %d\n", tmpName, tmpLen) ;
return __LINE__;
}
tmpName = (uint8_t*)HDCP2_RX_KEY_NAME;
tmpLen = HDCP2_RX_KEY_LEN;
retLen = amlkey_read(tmpName, (uint8_t*)&pHdcp2RxKey->keyVal, tmpLen);
if (retLen != tmpLen) {
KM_ERR ("Fail in read key[%s] at len %d\n", tmpName, tmpLen) ;
return __LINE__;
}
tmpName = (uint8_t*)HDCP2_RX_KEY_LC128_NAME;
tmpLen = HDCP2_RX_LC128_LEN;
retLen = amlkey_read(tmpName, (uint8_t*)&pHdcp2RxKey->lc128, tmpLen);
if (retLen != tmpLen) {
KM_ERR ("Fail in read key[%s] at len %d\n", tmpName, tmpLen) ;
return __LINE__;
}
hdcp2DataDecryption(srcKeyLen, (char*)pHdcp2RxKey, databuf);
return 0;
}
char * get_usid_string(void)
{
int ret;
ret = amlkey_isexsit((const uint8_t *)USID_KEY);
if (ret) {
ret = amlkey_size((const uint8_t *)USID_KEY);
if (ret && ret < MAX_STRING_SERIAL) {
amlkey_read((const uint8_t *)USID_KEY, (uint8_t *)usid_string, ret);
return usid_string;
}
}
return NULL;
}
