82 lines
1.8 KiB
C#
82 lines
1.8 KiB
C#
using System;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Math;
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namespace Org.BouncyCastle.Asn1.Pkcs
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{
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public class MacData
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: 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 static MacData GetInstance(
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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: " + obj.GetType().FullName, "obj");
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}
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private MacData(
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Asn1Sequence seq)
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{
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this.digInfo = DigestInfo.GetInstance(seq[0]);
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this.salt = ((Asn1OctetString) seq[1]).GetOctets();
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if (seq.Count == 3)
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{
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this.iterationCount = ((DerInteger) seq[2]).Value;
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}
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else
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{
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this.iterationCount = BigInteger.One;
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}
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}
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public MacData(
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DigestInfo digInfo,
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byte[] salt,
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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 DigestInfo Mac
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{
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get { return digInfo; }
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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 BigInteger IterationCount
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{
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get { return iterationCount; }
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}
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public override Asn1Object ToAsn1Object()
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{
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return new DerSequence(
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digInfo,
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new DerOctetString(salt),
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new DerInteger(iterationCount));
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}
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}
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}
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