69 lines
1.5 KiB
C#
69 lines
1.5 KiB
C#
using System;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Math;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1.Pkcs;
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public class MacData : Asn1Encodable
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{
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internal DigestInfo digInfo;
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internal byte[] salt;
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internal BigInteger iterationCount;
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public DigestInfo Mac => digInfo;
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public BigInteger IterationCount => iterationCount;
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public static MacData GetInstance(object obj)
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{
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if (obj is MacData)
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{
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return (MacData)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new MacData((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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private MacData(Asn1Sequence seq)
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{
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digInfo = DigestInfo.GetInstance(seq[0]);
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salt = ((Asn1OctetString)seq[1]).GetOctets();
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if (seq.Count == 3)
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{
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iterationCount = ((DerInteger)seq[2]).Value;
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}
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else
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{
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iterationCount = BigInteger.One;
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}
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}
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public MacData(DigestInfo digInfo, byte[] salt, int iterationCount)
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{
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this.digInfo = digInfo;
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this.salt = (byte[])salt.Clone();
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this.iterationCount = BigInteger.ValueOf(iterationCount);
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}
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public byte[] GetSalt()
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{
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return (byte[])salt.Clone();
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}
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public override Asn1Object ToAsn1Object()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(digInfo, new DerOctetString(salt));
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if (!iterationCount.Equals(BigInteger.One))
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{
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asn1EncodableVector.Add(new DerInteger(iterationCount));
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}
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return new DerSequence(asn1EncodableVector);
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}
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}
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