void decodeCms(Asn1Reader asn)
{
asn.MoveNextAndExpectTags(48, (Byte)Asn1Type.OBJECT_IDENTIFIER);
if (asn.Tag == 48)
{
Status = new TspStatusInfo(asn.GetTagRawData());
if (Status.ResponseStatus != TspResponseStatus.Granted && Status.ResponseStatus != TspResponseStatus.GrantedWithModifications)
{
return;
}
asn.MoveNextCurrentLevelAndExpectTags(48);
}
else
{
asn.MoveToPosition(0);
}
signedCms = new DefaultSignedPkcs7(asn.GetTagRawData());
ResponseType = signedCms.ContentType;
switch (ResponseType.Value)
{
// TimeStamp Token
case "1.2.840.113549.1.9.16.1.4":
decodeTstInfo(new Asn1Reader(signedCms.Content));
break;
// PKCS 7 DATA
case "1.2.840.113549.1.7.1":
break;
}
getSigningTime();
_rawData.AddRange(asn.GetRawData());
validate();
}
void m_decode(Byte[] rawData)
{
var aiaUrls = new List <String>();
var ocspUrls = new List <String>();
var asn = new Asn1Reader(rawData);
if (asn.Tag != 48)
{
throw new Asn1InvalidTagException(asn.Offset);
}
asn.MoveNext();
do
{
Int32 offset = asn.Offset;
if (asn.Tag != 48)
{
throw new Asn1InvalidTagException(asn.Offset);
}
asn.MoveNext();
String oidString = Asn1Utils.DecodeObjectIdentifier(asn.GetTagRawData()).Value;
asn.MoveNextAndExpectTags(0x86);
switch (oidString)
{
case "1.3.6.1.5.5.7.48.2": aiaUrls.Add(Encoding.ASCII.GetString(asn.GetPayload())); break;
case "1.3.6.1.5.5.7.48.1": ocspUrls.Add(Encoding.ASCII.GetString(asn.GetPayload())); break;
}
asn.MoveToPosition(offset);
} while (asn.MoveNextCurrentLevel());
CertificationAuthorityIssuer = aiaUrls.ToArray();
OnlineCertificateStatusProtocol = ocspUrls.ToArray();
}
void m_decode(Byte[] rawData)
{
Asn1Reader asn = new Asn1Reader(rawData);
if (asn.Tag != 48)
{
throw new Asn1InvalidTagException(asn.Offset);
}
asn.MoveNext();
Oid oid = Asn1Utils.DecodeObjectIdentifier(asn.GetTagRawData());
switch (oid.Value)
{
case "1.3.6.1.5.5.7.2.1":
Type = X509PolicyQualifierType.CpsUrl;
asn.MoveNext();
PolicyUrl = new Uri(Asn1Utils.DecodeIA5String(asn.GetTagRawData()).Replace("\0", null));
break;
case "1.3.6.1.5.5.7.2.2":
Type = X509PolicyQualifierType.UserNotice;
if (!asn.MoveNext())
{
return;
}
if (asn.Tag != 48)
{
throw new Asn1InvalidTagException(asn.Offset);
}
asn.MoveNext();
if (asn.Tag == 48)
{
Int32 offset = asn.Offset;
asn.MoveNext();
NoticeReference = Asn1Utils.DecodeAnyString(asn.GetTagRawData(), new[] { Asn1Type.IA5String, Asn1Type.VisibleString, Asn1Type.BMPString, Asn1Type.UTF8String });
asn.MoveNext();
asn.MoveNext();
NoticeNumber = (Int32)Asn1Utils.DecodeInteger(asn.GetTagRawData());
asn.MoveToPosition(offset);
if (asn.MoveNextCurrentLevel())
{
NoticeText = Asn1Utils.DecodeAnyString(asn.GetTagRawData(), new[] { Asn1Type.IA5String, Asn1Type.VisibleString, Asn1Type.BMPString, Asn1Type.UTF8String });
}
}
else
{
NoticeText = Asn1Utils.DecodeAnyString(asn.GetTagRawData(), new[] { Asn1Type.IA5String, Asn1Type.VisibleString, Asn1Type.BMPString, Asn1Type.UTF8String });
}
break;
default: m_reset(); return;
}
}
void decodeSignerInfos(Asn1Reader asn)
{
if (asn.PayloadLength == 0)
{
return;
}
Int32 offset = asn.Offset;
asn.MoveNext();
do
{
_signerInfos.Add(new PkcsSignerInfo(asn.GetTagRawData()));
} while (asn.MoveNextCurrentLevel());
asn.MoveToPosition(offset);
}
void decodeCRLs(Asn1Reader asn)
{
if (asn.PayloadLength == 0)
{
return;
}
Int32 offset = asn.Offset;
asn.MoveNext();
do
{
_crls.Add(new X509CRL2(asn.GetTagRawData()));
} while (asn.MoveNextCurrentLevel());
asn.MoveToPosition(offset);
}
void decodeValidity(Asn1Reader asn)
{
ThisUpdate = Asn1Utils.DecodeDateTime(asn.GetTagRawData());
Int32 offset = asn.Offset;
asn.MoveNext();
if (asn.Tag == (Byte)Asn1Type.UTCTime || asn.Tag == (Byte)Asn1Type.GeneralizedTime)
{
NextUpdate = Asn1Utils.DecodeDateTime(asn.GetTagRawData());
}
else
{
asn.MoveToPosition(offset);
}
//asn.MoveToPosition(offset);
}
static void buildTree(Asn1Reader root, Asn1TreeNode tree)
{
root.MoveNext();
Int32 index = 0;
do
{
tree.AddChild(new Asn1Lite(root, tree, index));
index++;
} while (root.MoveNextCurrentLevel());
root.Reset();
foreach (Asn1TreeNode node in tree.Children.Where(node => node.Value.IsContainer && node.Value.PayloadLength > 0))
{
root.MoveToPosition(node.Value.Offset);
buildTree(root, node);
}
}
void decodeDigestAlgorithms(Asn1Reader asn)
{
// asn tag -> SET (0x31)
Int32 offset = asn.Offset;
if (asn.PayloadLength == 0)
{
return;
}
asn.MoveNext();
do
{
_digestAlgorithms.Add(new AlgorithmIdentifier(asn.GetTagRawData()));
} while (asn.MoveNextCurrentLevel());
asn.MoveToPosition(offset);
}
void decodeCertificates(Asn1Reader asn)
{
if (asn.PayloadLength == 0)
{
return;
}
Int32 offset = asn.Offset;
asn.MoveNext();
do
{
// sometimes we can get thing called ExtendedCertificate. I have no idea what it is.
try {
_certificates.Add(new X509Certificate2(asn.GetTagRawData()));
} catch { }
} while (asn.MoveNextCurrentLevel());
asn.MoveToPosition(offset);
}
Byte[] extractContent(Asn1Reader asn)
{
Int32 offset = asn.Offset;
asn.MoveNext();
Byte[] payload = null;
ContentType = new Asn1ObjectIdentifier(asn.GetTagRawData()).Value;
if (asn.MoveNextCurrentLevel())
{
// content [0] EXPLICIT ANY DEFINED BY contentType
asn.MoveNextAndExpectTags((Byte)Asn1Type.OCTET_STRING, 48); // octet string or sequence
payload = asn.GetPayload();
contentOffset = asn.Offset;
contentSize = asn.TagLength;
}
asn.MoveToPosition(offset);
return(payload);
}