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add error check in the crypto stream

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merlokk 2021-06-24 17:39:23 +03:00
commit aa880239a1
1 changed files with 5 additions and 0 deletions
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5
client/src/cipurse/cipursecrypto.c
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@ -506,6 +506,11 @@ void CipurseCAPDURespDecode(CipurseContext *ctx, uint8_t *srcdata, size_t srcdat
CipurseCChannelDecrypt(ctx, srcdata, srcdatalen, buf, &buflen);
//PrintAndLogEx(INFO, "data plain[%d]: %s", buflen, sprint_hex(buf, buflen));
if (buflen == 0) {
PrintAndLogEx(ERR, "APDU can't decode crypto stream");
break;
}
micdatalen = buflen - 2 - CIPURSE_MIC_LENGTH;
memcpy(micdata, buf, buflen);
memcpy(&micdata[micdatalen], &buf[buflen - 2], 2);