int EBC_Provider_MkEuCryptZipDoc_A005(AB_PROVIDER *pro,
AB_USER *u,
const char *requestType,
const uint8_t *pMsg,
uint32_t lMsg,
GWEN_CRYPT_KEY *skey,
GWEN_BUFFER *sbuf)
{
GWEN_BUFFER *tbuf;
GWEN_BUFFER *ebuf;
int rv;
uint32_t l;
DBG_INFO(AQEBICS_LOGDOMAIN, "Generating EU A005");
tbuf=GWEN_Buffer_new(0, 512, 0, 1);
rv=EBC_Provider_MkEuZipDoc_A005(pro, u, requestType, pMsg, lMsg, tbuf);
if (rv<0) {
DBG_INFO(AQEBICS_LOGDOMAIN, "here (%d)", rv);
GWEN_Buffer_free(tbuf);
return rv;
}
/* padd EU */
rv=GWEN_Padd_PaddWithAnsiX9_23ToMultipleOf(tbuf, 16);
if (rv<0) {
DBG_INFO(AQEBICS_LOGDOMAIN, "here (%d)", rv);
GWEN_Buffer_free(tbuf);
return rv;
}
/* encrypt EU with the DES session key */
ebuf=GWEN_Buffer_new(0, GWEN_Buffer_GetUsedBytes(tbuf)+16, 0, 1);
l=GWEN_Buffer_GetMaxUnsegmentedWrite(ebuf);
/* reset IV !! */
GWEN_Crypt_KeyAes128_SetIV(skey, NULL, 0);
rv=GWEN_Crypt_Key_Encipher(skey,
(uint8_t *)GWEN_Buffer_GetStart(tbuf),
GWEN_Buffer_GetUsedBytes(tbuf),
(uint8_t *)GWEN_Buffer_GetPosPointer(ebuf),
&l);
if (rv<0) {
DBG_INFO(AQEBICS_LOGDOMAIN, "here (%d)", rv);
GWEN_Buffer_free(ebuf);
GWEN_Buffer_free(tbuf);
return rv;
}
GWEN_Buffer_free(tbuf);
GWEN_Buffer_IncrementPos(ebuf, l);
GWEN_Buffer_AdjustUsedBytes(ebuf);
/* base64 encode encrypted EU into given buffer */
rv=GWEN_Base64_Encode((const uint8_t *)GWEN_Buffer_GetStart(ebuf),
GWEN_Buffer_GetUsedBytes(ebuf),
sbuf, 0);
if (rv<0) {
DBG_INFO(AQEBICS_LOGDOMAIN, "here (%d)", rv);
GWEN_Buffer_free(ebuf);
return rv;
}
GWEN_Buffer_free(ebuf);
return 0;
}
int GWEN_Padd_PaddWithAnsiX9_23(GWEN_BUFFER *src) {
return GWEN_Padd_PaddWithAnsiX9_23ToMultipleOf(src, 8);
}
