58 lines
1.2 KiB
C#
58 lines
1.2 KiB
C#
using System;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1.X509;
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public class DigestInfo : Asn1Encodable
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{
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private readonly byte[] digest;
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private readonly AlgorithmIdentifier algID;
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public AlgorithmIdentifier AlgorithmID => algID;
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public static DigestInfo GetInstance(Asn1TaggedObject obj, bool explicitly)
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{
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return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
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}
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public static DigestInfo GetInstance(object obj)
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{
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if (obj is DigestInfo)
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{
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return (DigestInfo)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new DigestInfo((Asn1Sequence)obj);
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}
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throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
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}
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public DigestInfo(AlgorithmIdentifier algID, byte[] digest)
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{
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this.digest = digest;
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this.algID = algID;
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}
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private DigestInfo(Asn1Sequence seq)
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{
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if (seq.Count != 2)
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{
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throw new ArgumentException("Wrong number of elements in sequence", "seq");
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}
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algID = AlgorithmIdentifier.GetInstance(seq[0]);
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digest = Asn1OctetString.GetInstance(seq[1]).GetOctets();
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}
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public byte[] GetDigest()
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{
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return digest;
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}
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public override Asn1Object ToAsn1Object()
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{
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return new DerSequence(algID, new DerOctetString(digest));
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}
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}
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