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92 lines
2.5 KiB
92 lines
2.5 KiB
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR) |
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#pragma warning disable |
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using System; |
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using System.Collections; |
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using System.IO; |
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities; |
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1 |
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{ |
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public class DerSequence |
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: Asn1Sequence |
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{ |
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public static readonly DerSequence Empty = new DerSequence(); |
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public static DerSequence FromVector(Asn1EncodableVector elementVector) |
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{ |
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return elementVector.Count < 1 ? Empty : new DerSequence(elementVector); |
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} |
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/** |
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* create an empty sequence |
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*/ |
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public DerSequence() |
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: base() |
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{ |
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} |
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/** |
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* create a sequence containing one object |
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*/ |
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public DerSequence(Asn1Encodable element) |
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: base(element) |
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{ |
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} |
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public DerSequence(params Asn1Encodable[] elements) |
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: base(elements) |
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{ |
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} |
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/** |
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* create a sequence containing a vector of objects. |
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*/ |
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public DerSequence(Asn1EncodableVector elementVector) |
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: base(elementVector) |
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{ |
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} |
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internal override int EncodedLength(bool withID) |
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{ |
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throw BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.CreateNotImplementedException("DerSequence.EncodedLength"); |
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} |
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/* |
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* A note on the implementation: |
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* <p> |
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* As Der requires the constructed, definite-length model to |
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* be used for structured types, this varies slightly from the |
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* ASN.1 descriptions given. Rather than just outputing Sequence, |
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* we also have to specify Constructed, and the objects length. |
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*/ |
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internal override void Encode(Asn1OutputStream asn1Out, bool withID) |
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{ |
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if (Count < 1) |
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{ |
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asn1Out.WriteEncodingDL(withID, Asn1Tags.Constructed | Asn1Tags.Sequence, Asn1OctetString.EmptyOctets); |
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return; |
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} |
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// TODO Intermediate buffer could be avoided if we could calculate expected length |
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MemoryStream bOut = new MemoryStream(); |
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Asn1OutputStream dOut = Asn1OutputStream.Create(bOut, Der); |
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dOut.WriteElements(elements); |
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dOut.Flush(); |
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#if PORTABLE || NETFX_CORE |
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byte[] bytes = bOut.ToArray(); |
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int length = bytes.Length; |
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#else |
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byte[] bytes = bOut.GetBuffer(); |
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int length = (int)bOut.Position; |
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#endif |
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asn1Out.WriteEncodingDL(withID, Asn1Tags.Constructed | Asn1Tags.Sequence, bytes, 0, length); |
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BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.Dispose(dOut); |
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} |
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} |
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} |
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#pragma warning restore |
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#endif
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