public X509CertificatePair ReadCertPair(
Stream inStream)
{
if (inStream == null)
throw new ArgumentNullException("inStream");
if (!inStream.CanRead)
throw new ArgumentException("inStream must be read-able", "inStream");
if (currentStream == null)
{
currentStream = inStream;
}
else if (currentStream != inStream) // reset if input stream has changed
{
currentStream = inStream;
}
try
{
PushbackStream pis = new PushbackStream(inStream);
int tag = pis.ReadByte();
if (tag < 0)
return null;
pis.Unread(tag);
return ReadDerCrossCertificatePair(pis);
}
catch (Exception e)
{
throw new CertificateException(e.ToString());
}
}
/**
* Generates a certificate object and initializes it with the data
* read from the input stream inStream.
*/
public IX509AttributeCertificate ReadAttrCert(
Stream inStream)
{
if (inStream == null)
throw new ArgumentNullException("inStream");
if (!inStream.CanRead)
throw new ArgumentException("inStream must be read-able", "inStream");
if (currentStream == null)
{
currentStream = inStream;
sData = null;
sDataObjectCount = 0;
}
else if (currentStream != inStream) // reset if input stream has changed
{
currentStream = inStream;
sData = null;
sDataObjectCount = 0;
}
try
{
if (sData != null)
{
if (sDataObjectCount != sData.Count)
{
return GetCertificate();
}
sData = null;
sDataObjectCount = 0;
return null;
}
PushbackStream pis = new PushbackStream(inStream);
int tag = pis.ReadByte();
if (tag < 0)
return null;
pis.Unread(tag);
if (tag != 0x30) // assume ascii PEM encoded.
{
return ReadPemCertificate(pis);
}
return ReadDerCertificate(new Asn1InputStream(pis));
}
catch (Exception e)
{
throw new CertificateException(e.ToString());
}
}
/**
* Generates a certificate revocation list (CRL) object and initializes
* it with the data read from the input stream inStream.
*/
public X509Crl ReadCrl(
Stream inStream)
{
if (inStream == null)
throw new ArgumentNullException("inStream");
if (!inStream.CanRead)
throw new ArgumentException("inStream must be read-able", "inStream");
if (currentCrlStream == null)
{
currentCrlStream = inStream;
sCrlData = null;
sCrlDataObjectCount = 0;
}
else if (currentCrlStream != inStream) // reset if input stream has changed
{
currentCrlStream = inStream;
sCrlData = null;
sCrlDataObjectCount = 0;
}
try
{
if (sCrlData != null)
{
if (sCrlDataObjectCount != sCrlData.Count)
{
return GetCrl();
}
sCrlData = null;
sCrlDataObjectCount = 0;
return null;
}
PushbackStream pis = new PushbackStream(inStream);
int tag = pis.ReadByte();
if (tag < 0)
return null;
pis.Unread(tag);
if (tag != 0x30) // assume ascii PEM encoded.
{
return ReadPemCrl(pis);
}
Asn1InputStream asn1 = lazyAsn1
? new LazyAsn1InputStream(pis)
: new Asn1InputStream(pis);
return ReadDerCrl(asn1);
}
catch (CrlException e)
{
throw e;
}
catch (Exception e)
{
throw new CrlException(e.ToString());
}
}