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flattens the serial number

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This commit is contained in:
John Safranek
2012-05-08 19:02:25 -07:00
parent 4feeeeda55
commit ea2585963f
3 changed files with 46 additions and 35 deletions
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75
ctaocrypt/src/asn.c
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@@ -4113,48 +4113,57 @@ int OcspResponseDecode(OcspResponse* resp)
}
static int SetInt(const byte* input, word32 inputSz, byte* output)
static int SetSerialNumber(const byte* sn, word32 snSz, byte* output)
{
return 0;
int result = 0;
if (snSz <= EXTERNAL_SERIAL_SIZE) {
output[0] = ASN_INTEGER;
output[1] = snSz;
output[2] = 0;
XMEMCPY(&output[3], sn, snSz);
result = snSz + 3;
}
return result;
}
#define MAX_INT_SZ 32
int EncodeOcspRequest(DecodedCert* cert, byte* output, word32 outputSz)
{
byte seqArray[5][MAX_SEQ_SZ];
/* The ASN.1 of the OCSP Request is an onion of sequences */
byte algoArray[MAX_ALGO_SZ];
byte issuerArray[MAX_ENCODED_DIG_SZ];
byte issuerKeyArray[MAX_ENCODED_DIG_SZ];
byte snArray[MAX_INT_SZ];
byte seqArray[5][MAX_SEQ_SZ];
/* The ASN.1 of the OCSP Request is an onion of sequences */
byte algoArray[MAX_ALGO_SZ];
byte issuerArray[MAX_ENCODED_DIG_SZ];
byte issuerKeyArray[MAX_ENCODED_DIG_SZ];
byte snArray[MAX_SN_SZ];
word32 seqSz[5], algoSz, issuerSz, issuerKeySz, snSz, totalSz;
int i;
word32 seqSz[5], algoSz, issuerSz, issuerKeySz, snSz, totalSz;
int i;
algoSz = SetAlgoID(SHAh, algoArray, hashType);
issuerSz = SetDigest(cert->issuerHash, SHA_SIZE, issuerArray);
issuerKeySz = SetDigest(cert->issuerKeyHash, SHA_SIZE, issuerKeyArray);
snSz = SetInt(cert->serial, cert->serialSz, snArray);
algoSz = SetAlgoID(SHAh, algoArray, hashType);
issuerSz = SetDigest(cert->issuerHash, SHA_SIZE, issuerArray);
issuerKeySz = SetDigest(cert->issuerKeyHash, SHA_SIZE, issuerKeyArray);
snSz = SetSerialNumber(cert->serial, cert->serialSz, snArray);
totalSz = algoSz + issuerSz + issuerKeySz + snSz;
totalSz = algoSz + issuerSz + issuerKeySz + snSz;
for (i = 4; i >= 0; i--) {
seqSz[i] = SetSequence(totalSz, seqArray[i]);
totalSz += seqSz[i];
}
totalSz = 0;
for (i = 0; i < 5; i++) {
XMEMCPY(output + totalSz, seqArray[i], seqSz[i]);
totalSz += seqSz[i];
}
XMEMCPY(output + totalSz, algoArray, algoSz);
totalSz += algoSz;
XMEMCPY(output + totalSz, issuerArray, issuerSz);
totalSz += issuerSz;
XMEMCPY(output + totalSz, issuerKeyArray, issuerKeySz);
totalSz += issuerKeySz;
XMEMCPY(output + totalSz, snArray, snSz);
totalSz += snSz;
for (i = 4; i >= 0; i--) {
seqSz[i] = SetSequence(totalSz, seqArray[i]);
totalSz += seqSz[i];
}
totalSz = 0;
for (i = 0; i < 5; i++) {
XMEMCPY(output + totalSz, seqArray[i], seqSz[i]);
totalSz += seqSz[i];
}
XMEMCPY(output + totalSz, algoArray, algoSz);
totalSz += algoSz;
XMEMCPY(output + totalSz, issuerArray, issuerSz);
totalSz += issuerSz;
XMEMCPY(output + totalSz, issuerKeyArray, issuerKeySz);
totalSz += issuerKeySz;
XMEMCPY(output + totalSz, snArray, snSz);
totalSz += snSz;
return totalSz;
}