139 lines
3.8 KiB
C#
139 lines
3.8 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
|
#pragma warning disable
|
|
using System;
|
|
|
|
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
|
|
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1
|
|
{
|
|
public class DerInteger
|
|
: Asn1Object
|
|
{
|
|
public const string AllowUnsafeProperty = "BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.AllowUnsafeInteger";
|
|
|
|
internal static bool AllowUnsafe()
|
|
{
|
|
string allowUnsafeValue = BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetEnvironmentVariable(AllowUnsafeProperty);
|
|
return allowUnsafeValue != null && BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.EqualsIgnoreCase("true", allowUnsafeValue);
|
|
}
|
|
|
|
private readonly byte[] bytes;
|
|
|
|
/**
|
|
* return an integer from the passed in object
|
|
*
|
|
* @exception ArgumentException if the object cannot be converted.
|
|
*/
|
|
public static DerInteger GetInstance(
|
|
object obj)
|
|
{
|
|
if (obj == null || obj is DerInteger)
|
|
{
|
|
return (DerInteger)obj;
|
|
}
|
|
|
|
throw new ArgumentException("illegal object in GetInstance: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(obj));
|
|
}
|
|
|
|
/**
|
|
* return an Integer from a tagged object.
|
|
*
|
|
* @param obj the tagged object holding the object we want
|
|
* @param isExplicit true if the object is meant to be explicitly
|
|
* tagged false otherwise.
|
|
* @exception ArgumentException if the tagged object cannot
|
|
* be converted.
|
|
*/
|
|
public static DerInteger GetInstance(
|
|
Asn1TaggedObject obj,
|
|
bool isExplicit)
|
|
{
|
|
if (obj == null)
|
|
throw new ArgumentNullException("obj");
|
|
|
|
Asn1Object o = obj.GetObject();
|
|
|
|
if (isExplicit || o is DerInteger)
|
|
{
|
|
return GetInstance(o);
|
|
}
|
|
|
|
return new DerInteger(Asn1OctetString.GetInstance(o).GetOctets());
|
|
}
|
|
|
|
public DerInteger(
|
|
int value)
|
|
{
|
|
bytes = BigInteger.ValueOf(value).ToByteArray();
|
|
}
|
|
|
|
public DerInteger(
|
|
BigInteger value)
|
|
{
|
|
if (value == null)
|
|
throw new ArgumentNullException("value");
|
|
|
|
bytes = value.ToByteArray();
|
|
}
|
|
|
|
public DerInteger(
|
|
byte[] bytes)
|
|
{
|
|
if (bytes.Length > 1)
|
|
{
|
|
if ((bytes[0] == 0 && (bytes[1] & 0x80) == 0)
|
|
|| (bytes[0] == (byte)0xff && (bytes[1] & 0x80) != 0))
|
|
{
|
|
if (!AllowUnsafe())
|
|
throw new ArgumentException("malformed integer");
|
|
}
|
|
}
|
|
this.bytes = Arrays.Clone(bytes);
|
|
}
|
|
|
|
public BigInteger Value
|
|
{
|
|
get { return new BigInteger(bytes); }
|
|
}
|
|
|
|
/**
|
|
* in some cases positive values Get crammed into a space,
|
|
* that's not quite big enough...
|
|
*/
|
|
public BigInteger PositiveValue
|
|
{
|
|
get { return new BigInteger(1, bytes); }
|
|
}
|
|
|
|
internal override void Encode(
|
|
DerOutputStream derOut)
|
|
{
|
|
derOut.WriteEncoded(Asn1Tags.Integer, bytes);
|
|
}
|
|
|
|
protected override int Asn1GetHashCode()
|
|
{
|
|
return Arrays.GetHashCode(bytes);
|
|
}
|
|
|
|
protected override bool Asn1Equals(
|
|
Asn1Object asn1Object)
|
|
{
|
|
DerInteger other = asn1Object as DerInteger;
|
|
|
|
if (other == null)
|
|
return false;
|
|
|
|
return Arrays.AreEqual(this.bytes, other.bytes);
|
|
}
|
|
|
|
public override string ToString()
|
|
{
|
|
return Value.ToString();
|
|
}
|
|
}
|
|
}
|
|
#pragma warning restore
|
|
#endif
|