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using System;
namespace Org.BouncyCastle.Asn1
{
public class DerSequence
: Asn1Sequence
{
public static readonly DerSequence Empty = new DerSequence();
public static DerSequence FromVector(Asn1EncodableVector elementVector)
{
return elementVector.Count < 1 ? Empty : new DerSequence(elementVector);
}
/**
* create an empty sequence
*/
public DerSequence()
: base()
{
}
/**
* create a sequence containing one object
*/
public DerSequence(Asn1Encodable element)
: base(element)
{
}
/**
* create a sequence containing two objects
*/
public DerSequence(Asn1Encodable element1, Asn1Encodable element2)
: base(element1, element2)
{
}
public DerSequence(params Asn1Encodable[] elements)
: base(elements)
{
}
/**
* create a sequence containing a vector of objects.
*/
public DerSequence(Asn1EncodableVector elementVector)
: base(elementVector)
{
}
internal DerSequence(Asn1Encodable[] elements, bool clone)
: base(elements, clone)
{
}
internal override IAsn1Encoding GetEncoding(int encoding)
{
return new ConstructedDLEncoding(Asn1Tags.Universal, Asn1Tags.Sequence,
Asn1OutputStream.GetContentsEncodings(Asn1OutputStream.EncodingDer, elements));
}
internal override IAsn1Encoding GetEncodingImplicit(int encoding, int tagClass, int tagNo)
{
return new ConstructedDLEncoding(tagClass, tagNo,
Asn1OutputStream.GetContentsEncodings(Asn1OutputStream.EncodingDer, elements));
}
internal override DerBitString ToAsn1BitString()
{
return new DerBitString(BerBitString.FlattenBitStrings(GetConstructedBitStrings()), false);
}
internal override DerExternal ToAsn1External()
{
return new DerExternal(this);
}
internal override Asn1OctetString ToAsn1OctetString()
{
return new DerOctetString(BerOctetString.FlattenOctetStrings(GetConstructedOctetStrings()));
}
internal override Asn1Set ToAsn1Set()
{
// NOTE: DLSet is intentional, we don't want sorting
return new DLSet(false, elements);
}
internal static int GetEncodingLength(int contentsLength)
{
return Asn1OutputStream.GetLengthOfEncodingDL(Asn1Tags.Sequence, contentsLength);
}
}
}
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