139 lines
3.8 KiB
C#
139 lines
3.8 KiB
C#
#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 BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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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 DerEnumerated
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: Asn1Object
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{
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private readonly byte[] bytes;
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/**
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* return an integer from the passed in object
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*
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* @exception ArgumentException if the object cannot be converted.
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*/
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public static DerEnumerated GetInstance(
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object obj)
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{
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if (obj == null || obj is DerEnumerated)
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{
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return (DerEnumerated)obj;
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}
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throw new ArgumentException("illegal object in GetInstance: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(obj));
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}
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/**
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* return an Enumerated from a tagged object.
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*
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* @param obj the tagged object holding the object we want
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* @param explicitly true if the object is meant to be explicitly
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* tagged false otherwise.
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* @exception ArgumentException if the tagged object cannot
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* be converted.
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*/
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public static DerEnumerated GetInstance(
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Asn1TaggedObject obj,
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bool isExplicit)
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{
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Asn1Object o = obj.GetObject();
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if (isExplicit || o is DerEnumerated)
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{
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return GetInstance(o);
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}
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return FromOctetString(((Asn1OctetString)o).GetOctets());
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}
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public DerEnumerated(
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int val)
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{
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bytes = BigInteger.ValueOf(val).ToByteArray();
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}
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public DerEnumerated(
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BigInteger val)
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{
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bytes = val.ToByteArray();
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}
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public DerEnumerated(
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byte[] bytes)
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{
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if (bytes.Length > 1)
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{
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if ((bytes[0] == 0 && (bytes[1] & 0x80) == 0)
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|| (bytes[0] == (byte)0xff && (bytes[1] & 0x80) != 0))
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{
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if (!DerInteger.AllowUnsafe())
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throw new ArgumentException("malformed enumerated");
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}
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}
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this.bytes = Arrays.Clone(bytes);
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}
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public BigInteger Value
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{
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get { return new BigInteger(bytes); }
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}
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internal override void Encode(
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DerOutputStream derOut)
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{
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derOut.WriteEncoded(Asn1Tags.Enumerated, bytes);
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}
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protected override bool Asn1Equals(
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Asn1Object asn1Object)
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{
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DerEnumerated other = asn1Object as DerEnumerated;
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if (other == null)
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return false;
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return Arrays.AreEqual(this.bytes, other.bytes);
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}
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protected override int Asn1GetHashCode()
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{
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return Arrays.GetHashCode(bytes);
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}
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private static readonly DerEnumerated[] cache = new DerEnumerated[12];
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internal static DerEnumerated FromOctetString(byte[] enc)
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{
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if (enc.Length == 0)
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{
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throw new ArgumentException("ENUMERATED has zero length", "enc");
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}
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if (enc.Length == 1)
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{
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int value = enc[0];
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if (value < cache.Length)
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{
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DerEnumerated cached = cache[value];
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if (cached != null)
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{
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return cached;
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}
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return cache[value] = new DerEnumerated(Arrays.Clone(enc));
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}
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}
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return new DerEnumerated(Arrays.Clone(enc));
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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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