public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var len = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
OidValue = OidValue.FromArray(buffer.DecodeRelOidContents(len));
buffer.TypeCode = RelativeOidTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
EncryptionParamSet = new Gost2814789ParamSet();
EncryptionParamSet.Decode(buffer, true, parsedLen.Value);
if (context.MatchElemTag(0, 0, OctetStringTypeCode, parsedLen, false))
{
Ukm = new Asn1OctetString();
Ukm.Decode(buffer, true, parsedLen.Value);
if (Ukm.Length != 8)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1ConsVioException, "Ukm.Length", Ukm.Length);
}
}
}
public Asn1BerDecodeContext(Asn1BerDecodeBuffer decodeBuffer, int elemLength)
{
_decodeBuffer = decodeBuffer;
_decBufByteCount = decodeBuffer.ByteCount;
_elemLength = elemLength;
_tagHolder = new Asn1Tag();
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, 6, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
Algorithm = new Asn1ObjectIdentifier();
Algorithm.Decode(buffer, true, parsedLen.Value);
if (!context.Expired())
{
Parameters = new Asn1OpenType();
Parameters.Decode(buffer, true, 0);
}
CheckTc(true);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
Value = (int)Asn1RunTime.DecodeIntValue(buffer, length, true);
buffer.TypeCode = EnumeratedTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0x20, 0x10, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
Algorithm = new AlgorithmIdentifier();
Algorithm.Decode(buffer, true, parsedLen.Value);
if (!context.MatchElemTag(0, 0, 3, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
SubjectPublicKey = new Asn1BitString();
SubjectPublicKey.Decode(buffer, true, parsedLen.Value);
}
public virtual void DecodeComponent(Asn1BerDecodeBuffer buffer)
{
var type = new Asn1OpenType();
type.Decode(buffer, false, 0);
Value.Add(type);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var llen = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var idx = new IntHolder(0);
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
ReadSegment(buffer, llen, idx);
}
else
{
var context = new Asn1BerDecodeContext(buffer, llen);
while (!context.Expired())
{
var num2 = MatchTag(buffer, Asn1OctetString.Tag);
if (num2 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
ReadSegment(buffer, num2, idx);
}
if (llen == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
buffer.TypeCode = UniversalStringTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
_value = DecodeValue(buffer, length);
buffer.TypeCode = 2;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, 6, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
_publicKeyParamSet = new Asn1ObjectIdentifier();
_publicKeyParamSet.Decode(buffer, true, parsedLen.Value);
if (!context.MatchElemTag(0, 0, 6, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
_digestParamSet = new Asn1ObjectIdentifier();
_digestParamSet.Decode(buffer, true, parsedLen.Value);
if (context.MatchElemTag(0, 0, 6, parsedLen, false))
{
_encryptionParamSet = new Gost2814789ParamSet();
_encryptionParamSet.Decode(buffer, true, parsedLen.Value);
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var llen = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var idx = new IntHolder(0);
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
ReadSegment(buffer, llen, idx);
}
else
{
var context = new Asn1BerDecodeContext(buffer, llen);
while (!context.Expired())
{
var num2 = MatchTag(buffer, Asn1OctetString.Tag);
if (num2 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
ReadSegment(buffer, num2, idx);
}
if (llen == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
buffer.TypeCode = UniversalStringTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var tag = new Asn1Tag();
buffer.Mark();
var num = buffer.DecodeTagAndLength(tag);
if (tag.Equals(0, 0, NullTypeCode))
{
buffer.Reset();
var element = new NullParams();
SetElement(Null, element);
Element.Decode(buffer, true, num);
}
else
{
if (!tag.Equals(0, 0x20, SequenceTypeCode))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidChoiceOptionTagException, tag, buffer.ByteCount);
}
buffer.Reset();
var parameters = new GostR34102001PublicKeyParameters();
SetElement(Params, parameters);
Element.Decode(buffer, true, num);
}
}
public Asn1BerDecodeContext(Asn1BerDecodeBuffer decodeBuffer, int elemLength)
{
_decodeBuffer = decodeBuffer;
_decBufByteCount = decodeBuffer.ByteCount;
_elemLength = elemLength;
_tagHolder = new Asn1Tag();
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0x20, SequenceTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
EncryptedKey = new Gost2814789EncryptedKey();
EncryptedKey.Decode(buffer, true, parsedLen.Value);
if (!context.MatchElemTag(0, 0x20, SequenceTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
EncryptedParameters = new Gost2814789KeyWrapParameters();
EncryptedParameters.Decode(buffer, true, parsedLen.Value);
}
protected virtual int MatchTag(Asn1BerDecodeBuffer buffer, short tagClass, short tagForm, int tagIdCode)
{
if (!buffer.MatchTag(tagClass, tagForm, tagIdCode, _parsedTag, _parsedLen))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1TagMatchFailedException, new Asn1Tag(tagClass, tagForm, tagIdCode), _parsedTag, buffer.ByteCount);
}
return(_parsedLen.Value);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
if (explicitTagging)
{
MatchTag(buffer, Tag);
}
buffer.TypeCode = NullTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
if (explicitTagging)
{
MatchTag(buffer, Tag);
}
buffer.TypeCode = NullTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
base.Decode(buffer, explicitTagging, implicitLength);
if (Length != 32)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1ConsVioException, "Length", Length);
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
if (elemLength < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
Value = new byte[elemLength];
if (elemLength != 0)
{
buffer.Read(Value);
}
}
else
{
var nbytes = 0;
var offset = 0;
var context = new Asn1BerDecodeContext(buffer, elemLength);
while (!context.Expired())
{
var num2 = MatchTag(buffer, Tag);
if (num2 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
nbytes += num2;
if (offset == 0)
{
Value = new byte[nbytes];
}
else
{
ReAllocByteArray(nbytes);
}
buffer.Read(Value, offset, num2);
offset = nbytes;
}
if (elemLength == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
buffer.TypeCode = OctetStringTypeCode;
}
public virtual void DecodeEventComponent(Asn1BerDecodeBuffer buffer)
{
buffer.InvokeStartElement("...", -1);
var type = new Asn1OpenType();
type.Decode(buffer, false, 0);
Value.Add(type);
buffer.InvokeCharacters(type.ToString());
buffer.InvokeEndElement("...", -1);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var len = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
if (len <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
OidValue = OidValue.FromArray(buffer.DecodeOidContents(len));
buffer.TypeCode = ObjectIdentifierTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var num = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var str = new Asn1OctetString();
str.Decode(buffer, false, num);
Value = Encoding.UTF8.GetString(str.Value, 0, str.Value.Length);
if (explicitTagging && (num == Asn1Status.IndefiniteLength))
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
public virtual void DecodeEventComponent(Asn1BerDecodeBuffer buffer)
{
buffer.InvokeStartElement("...", -1);
var type = new Asn1OpenType();
type.Decode(buffer, false, 0);
Value.Add(type);
buffer.InvokeCharacters(type.ToString());
buffer.InvokeEndElement("...", -1);
}
public static int CalcIndefLen(byte[] data, int offset, int len)
{
Asn1BerDecodeBuffer buffer;
if ((offset == 0) && (len == data.Length))
{
buffer = new Asn1BerDecodeBuffer(data);
}
else
{
var destinationArray = new byte[len];
Array.Copy(data, offset, destinationArray, 0, len);
buffer = new Asn1BerDecodeBuffer(destinationArray);
}
var tag = new Asn1Tag();
var num = buffer.DecodeTagAndLength(tag);
if (num == Asn1Status.IndefiniteLength)
{
var num2 = 1;
num = 0;
while (num2 > 0)
{
var byteCount = buffer.ByteCount;
var num4 = buffer.DecodeTagAndLength(tag);
num += buffer.ByteCount - byteCount;
if (num4 > 0)
{
buffer.Skip(num4);
num += num4;
}
else
{
if (num4 == Asn1Status.IndefiniteLength)
{
num2++;
continue;
}
if (tag.IsEoc() && (num4 == 0))
{
num2--;
}
}
}
}
return num;
}
public static int CalcIndefLen(byte[] data, int offset, int len)
{
Asn1BerDecodeBuffer buffer;
if ((offset == 0) && (len == data.Length))
{
buffer = new Asn1BerDecodeBuffer(data);
}
else
{
var destinationArray = new byte[len];
Array.Copy(data, offset, destinationArray, 0, len);
buffer = new Asn1BerDecodeBuffer(destinationArray);
}
var tag = new Asn1Tag();
var num = buffer.DecodeTagAndLength(tag);
if (num == Asn1Status.IndefiniteLength)
{
var num2 = 1;
num = 0;
while (num2 > 0)
{
var byteCount = buffer.ByteCount;
var num4 = buffer.DecodeTagAndLength(tag);
num += buffer.ByteCount - byteCount;
if (num4 > 0)
{
buffer.Skip(num4);
num += num4;
}
else
{
if (num4 == Asn1Status.IndefiniteLength)
{
num2++;
continue;
}
if (tag.IsEoc() && (num4 == 0))
{
num2--;
}
}
}
}
return(num);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var num = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var str = new Asn1OctetString();
str.Decode(buffer, false, num);
Value = Encoding.UTF8.GetString(str.Value, 0, str.Value.Length);
if (explicitTagging && (num == Asn1Status.IndefiniteLength))
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
public override void BinDump(StreamWriter outs, string varName)
{
var buffer = new Asn1BerDecodeBuffer(ByteArrayInputStream);
try
{
buffer.Parse(new Asn1BerMessageDumpHandler(outs));
}
catch (Exception exception)
{
Console.Out.WriteLine(exception.Message);
Console.Error.Write(exception.StackTrace);
Console.Error.Flush();
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
if (explicitTagging)
{
MatchTag(buffer, Tag);
}
var num = buffer.Read();
if (num < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
buffer.TypeCode = BooleanTypeCode;
Value = num != 0;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
if (explicitTagging)
{
MatchTag(buffer, Tag);
}
var num = buffer.Read();
if (num < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
buffer.TypeCode = BooleanTypeCode;
Value = num != 0;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var len = elemLength;
var sb = new StringBuilder();
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
sb.EnsureCapacity(elemLength / 2);
ReadSegment(buffer, sb, len);
}
else
{
var capacity = 0;
var context = new Asn1BerDecodeContext(buffer, elemLength);
while (!context.Expired())
{
var num3 = MatchTag(buffer, Asn1OctetString.Tag);
if (num3 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
capacity += num3;
sb.EnsureCapacity(capacity);
ReadSegment(buffer, sb, num3);
}
if (elemLength == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
Value = sb.ToString();
buffer.TypeCode = BmpStringTypeCode;
}
private void ReadSegment(Asn1BerDecodeBuffer buffer, int llen, IntHolder idx)
{
if ((llen < 0) || ((llen % 4) != 0))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
var num4 = llen / 4;
if (_value.Length == 0)
{
_value = new int[num4];
}
else if ((idx.Value + num4) >= _value.Length)
{
ReallocIntArray(idx.Value + num4);
}
var value = idx.Value;
while (value < (idx.Value + num4))
{
_value[value] = 0;
for (var i = 0; i < 4; i++)
{
var num = buffer.Read();
if (num == -1)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
_value[value] = (_value[value] * 0x100) + num;
}
value++;
}
idx.Value = value;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var len = elemLength;
var sb = new StringBuilder();
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
sb.EnsureCapacity(elemLength / 2);
ReadSegment(buffer, sb, len);
}
else
{
var capacity = 0;
var context = new Asn1BerDecodeContext(buffer, elemLength);
while (!context.Expired())
{
var num3 = MatchTag(buffer, Asn1OctetString.Tag);
if (num3 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
capacity += num3;
sb.EnsureCapacity(capacity);
ReadSegment(buffer, sb, num3);
}
if (elemLength == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
Value = sb.ToString();
buffer.TypeCode = BmpStringTypeCode;
}
public void Decode(byte[] data)
{
if (data == null)
{
throw ExceptionUtility.ArgumentNull("data");
}
try
{
var asnDecoder = new Asn1BerDecodeBuffer(data);
var keyTransport = new GostR3410KeyTransport();
keyTransport.Decode(asnDecoder);
SessionEncryptedKey = DecodeSessionKey(keyTransport);
TransportParameters = DecodePublicKey(keyTransport);
}
catch (Exception exception)
{
throw ExceptionUtility.CryptographicException(exception, Resources.Asn1DecodeError, typeof(GostR3410KeyTransport).FullName);
}
}
public void DecodeParameters(byte[] data)
{
if (data == null)
{
throw ExceptionUtility.ArgumentNull("data");
}
try
{
var asnDecoder = new Asn1BerDecodeBuffer(data);
var publicKeyParameters = new GostR34102001PublicKeyParameters();
publicKeyParameters.Decode(asnDecoder);
DigestParamSet = Asn1ObjectIdentifier.ToOidString(publicKeyParameters.DigestParamSet);
PublicKeyParamSet = Asn1ObjectIdentifier.ToOidString(publicKeyParameters.PublicKeyParamSet);
EncryptionParamSet = Asn1ObjectIdentifier.ToOidString(publicKeyParameters.EncryptionParamSet);
}
catch (Exception exception)
{
throw ExceptionUtility.CryptographicException(exception, Resources.Asn1DecodeError, typeof(GostR34102001PublicKeyParameters).FullName);
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
EncryptionParamSet = new Gost2814789ParamSet();
EncryptionParamSet.Decode(buffer, true, parsedLen.Value);
if (!context.Expired())
{
if (buffer.PeekTag().Equals(0, 0, ObjectIdentifierTypeCode))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException);
}
_extElem1 = new Asn1OpenExt();
while (!context.Expired())
{
_extElem1.DecodeComponent(buffer);
}
}
else
{
_extElem1 = null;
}
}
public static string DecodeEncryptionParamSet(byte[] data)
{
if (data == null)
{
throw ExceptionUtility.ArgumentNull("data");
}
string encryptionParamSet;
try
{
var asnDecoder = new Asn1BerDecodeBuffer(data);
var parameters = new Gost2814789BlobParameters();
parameters.Decode(asnDecoder);
encryptionParamSet = Asn1ObjectIdentifier.ToOidString(parameters.EncryptionParamSet);
}
catch (Exception exception)
{
throw ExceptionUtility.CryptographicException(exception, Resources.Asn1DecodeError, typeof(Gost2814789BlobParameters).FullName);
}
return encryptionParamSet;
}
public virtual void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
}
protected virtual int MatchTag(Asn1BerDecodeBuffer buffer, Asn1Tag tag)
{
return(MatchTag(buffer, tag.Class, tag.Form, tag.IdCode));
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
Value = buffer.DecodeOpenType();
buffer.TypeCode = OpenTypeTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
Decode(buffer, explicitTagging, implicitLength, Tag);
}
protected virtual int MatchTag(Asn1BerDecodeBuffer buffer, Asn1Tag tag)
{
return MatchTag(buffer, tag.Class, tag.Form, tag.IdCode);
}
public virtual void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
if (elemLength < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
if (elemLength != 0)
{
var num8 = elemLength - 1;
var num7 = buffer.Read();
if (num7 < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
if ((num7 < 0) || (num7 > 7))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfBitString, num7);
}
if ((num8 == 0) && (num7 != 0))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
NumBits = (num8 * 8) - num7;
Value = new byte[num8];
buffer.Read(Value);
}
else
{
NumBits = 0;
Value = null;
}
}
else
{
var num3 = 0;
var offset = 0;
var index = -1;
var num6 = 0;
var context = new Asn1BerDecodeContext(buffer, elemLength);
while (!context.Expired())
{
var nbytes = MatchTag(buffer, Tag);
if (nbytes <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
num3 += nbytes;
if (offset == 0)
{
AllocBitArray(num3 * 8);
}
else
{
ReallocBitArray(num3 * 8);
}
index = offset;
buffer.Read(Value, offset, nbytes);
offset = num3;
}
if (index >= 0)
{
num6 = Value[index];
if (((offset - index) - 1) > 0)
{
Array.Copy(Value, index + 1, Value, index, (offset - index) - 1);
}
num3--;
}
if ((num6 < 0) || (num6 > 7))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfBitString, num6);
}
ReallocBitArray((num3 * 8) - num6);
if (elemLength == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
buffer.TypeCode = 3;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var llen = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
Value = buffer.DecodeRelOidContents(llen);
buffer.TypeCode = RelativeOidTypeCode;
}
public virtual void DecodeComponent(Asn1BerDecodeBuffer buffer)
{
var type = new Asn1OpenType();
type.Decode(buffer, false, 0);
Value.Add(type);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
DecodeComponent(buffer);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
base.Decode(buffer, false, 0);
}
public virtual void Decode(Asn1BerDecodeBuffer buffer)
{
Decode(buffer, true, 0);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
Decode(buffer, explicitTagging, implicitLength, Tag);
}
protected override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength, Asn1Tag tag)
{
Parsed = false;
base.Decode(buffer, explicitTagging, implicitLength, tag);
DerRules = buffer is Asn1DerDecodeBuffer;
}
public virtual void Decode(Asn1BerDecodeBuffer buffer)
{
Decode(buffer, true, 0);
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
Value = buffer.DecodeOpenType();
buffer.TypeCode = OpenTypeTypeCode;
}
protected virtual int MatchTag(Asn1BerDecodeBuffer buffer, short tagClass, short tagForm, int tagIdCode)
{
if (!buffer.MatchTag(tagClass, tagForm, tagIdCode, _parsedTag, _parsedLen))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1TagMatchFailedException, new Asn1Tag(tagClass, tagForm, tagIdCode), _parsedTag, buffer.ByteCount);
}
return _parsedLen.Value;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
Value = Asn1RunTime.DecodeIntValue(buffer, length, true);
buffer.TypeCode = BigIntegerTypeCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
if (length == 0)
{
Value = 0.0;
}
else
{
var num2 = buffer.ReadByte();
if (length == 1)
{
switch (num2)
{
case PlusInfinity:
Value = double.PositiveInfinity;
return;
case MinusInfinity:
Value = double.NegativeInfinity;
return;
}
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
length--;
if ((num2 & RealBinary) == 0)
{
var num8 = length;
var num9 = 0;
var builder = new StringBuilder { Length = num8 };
while (num8 > 0)
{
var num7 = buffer.Read();
if (num7 == -1)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
builder[num9++] = (char)num7;
num8--;
}
var num10 = num2 & RealIso6093Mask;
var num11 = 0;
for (var i = 0; i < builder.Length; i++)
{
var ch = builder[i];
if ((num10 >= 2) && (ch == ','))
{
builder[i] = '.';
num11++;
}
else if (((num10 >= 1) && (((ch >= '0') && (ch <= '9')) || ((ch == '+') || (ch == '-')))) || (((num10 >= 2) && (ch == '.')) || ((num10 == 3) && ((ch == 'E') || (ch == 'e')))))
{
num11++;
}
else if ((num11 != 0) || (ch != ' '))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
}
try
{
Value = double.Parse(builder.ToString());
}
catch (FormatException)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
}
else
{
int num6;
int num3;
switch ((num2 & RealExplenMask))
{
case RealExplen1:
num3 = 1;
break;
case RealExplen2:
num3 = 2;
break;
case RealExplen3:
num3 = 3;
break;
default:
num3 = buffer.ReadByte();
length--;
break;
}
var num4 = (int)Asn1RunTime.DecodeIntValue(buffer, num3, true);
length -= num3;
var num5 = Asn1RunTime.DecodeIntValue(buffer, length, false) * (1L << ((num2 & RealFactorMask) >> 2));
switch ((num2 & RealBaseMask))
{
case RealBase2:
num6 = 2;
break;
case RealBase8:
num6 = 8;
break;
case RealBase16:
num6 = 16;
break;
default:
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
Value = num5 * Math.Pow(num6, num4);
if ((num2 & PlusInfinity) != 0)
{
Value = -Value;
}
}
buffer.TypeCode = RealTypeCode;
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
DecodeComponent(buffer);
}
protected virtual void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength, Asn1Tag tag)
{
int num2;
var elemLength = explicitTagging ? MatchTag(buffer, tag) : implicitLength;
var num3 = elemLength;
var num4 = 0;
if (StringBuffer == null)
{
StringBuffer = new StringBuilder();
}
var lastTag = buffer.LastTag;
if ((lastTag == null) || !lastTag.Constructed)
{
if (num3 < 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidLengthException);
}
StringBuffer.Length = num3;
while (num3 > 0)
{
num2 = buffer.Read();
if (num2 == -1)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
StringBuffer[num4++] = (char)num2;
num3--;
}
}
else
{
var capacity = 0;
var context = new Asn1BerDecodeContext(buffer, elemLength);
while (!context.Expired())
{
var num5 = MatchTag(buffer, Asn1OctetString.Tag);
if (num5 <= 0)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
capacity += num5;
StringBuffer.EnsureCapacity(capacity);
while (num5 > 0)
{
num2 = buffer.Read();
if (num2 == -1)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
StringBuffer.Append((char)num2);
num5--;
}
}
if (elemLength == Asn1Status.IndefiniteLength)
{
MatchTag(buffer, Asn1Tag.Eoc);
}
}
Value = StringBuffer.ToString();
buffer.TypeCode = (short)tag.IdCode;
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
if (length == 0)
{
Value = 0.0;
}
else
{
var num2 = buffer.ReadByte();
if (length == 1)
{
switch (num2)
{
case PlusInfinity:
Value = double.PositiveInfinity;
return;
case MinusInfinity:
Value = double.NegativeInfinity;
return;
}
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
length--;
if ((num2 & RealBinary) == 0)
{
var num8 = length;
var num9 = 0;
var builder = new StringBuilder {
Length = num8
};
while (num8 > 0)
{
var num7 = buffer.Read();
if (num7 == -1)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
}
builder[num9++] = (char)num7;
num8--;
}
var num10 = num2 & RealIso6093Mask;
var num11 = 0;
for (var i = 0; i < builder.Length; i++)
{
var ch = builder[i];
if ((num10 >= 2) && (ch == ','))
{
builder[i] = '.';
num11++;
}
else if (((num10 >= 1) && (((ch >= '0') && (ch <= '9')) || ((ch == '+') || (ch == '-')))) || (((num10 >= 2) && (ch == '.')) || ((num10 == 3) && ((ch == 'E') || (ch == 'e')))))
{
num11++;
}
else if ((num11 != 0) || (ch != ' '))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
}
try
{
Value = double.Parse(builder.ToString());
}
catch (FormatException)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
}
else
{
int num6;
int num3;
switch ((num2 & RealExplenMask))
{
case RealExplen1:
num3 = 1;
break;
case RealExplen2:
num3 = 2;
break;
case RealExplen3:
num3 = 3;
break;
default:
num3 = buffer.ReadByte();
length--;
break;
}
var num4 = (int)Asn1RunTime.DecodeIntValue(buffer, num3, true);
length -= num3;
var num5 = Asn1RunTime.DecodeIntValue(buffer, length, false) * (1L << ((num2 & RealFactorMask) >> 2));
switch ((num2 & RealBaseMask))
{
case RealBase2:
num6 = 2;
break;
case RealBase8:
num6 = 8;
break;
case RealBase16:
num6 = 16;
break;
default:
throw ExceptionUtility.CryptographicException(Resources.Asn1InvalidFormatOfConstructedValue, buffer.ByteCount);
}
Value = num5 * Math.Pow(num6, num4);
if ((num2 & PlusInfinity) != 0)
{
Value = -Value;
}
}
buffer.TypeCode = RealTypeCode;
}
}