init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/DerUniversalString.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Text;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1;
+
+public class DerUniversalString : DerStringBase
+{
+	private static readonly char[] table = new char[16]
+	{
+		'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+		'A', 'B', 'C', 'D', 'E', 'F'
+	};
+
+	private readonly byte[] str;
+
+	public static DerUniversalString GetInstance(object obj)
+	{
+		if (obj == null || obj is DerUniversalString)
+		{
+			return (DerUniversalString)obj;
+		}
+		throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
+	}
+
+	public static DerUniversalString GetInstance(Asn1TaggedObject obj, bool isExplicit)
+	{
+		Asn1Object asn1Object = obj.GetObject();
+		if (isExplicit || asn1Object is DerUniversalString)
+		{
+			return GetInstance(asn1Object);
+		}
+		return new DerUniversalString(Asn1OctetString.GetInstance(asn1Object).GetOctets());
+	}
+
+	public DerUniversalString(byte[] str)
+	{
+		if (str == null)
+		{
+			throw new ArgumentNullException("str");
+		}
+		this.str = str;
+	}
+
+	public override string GetString()
+	{
+		StringBuilder stringBuilder = new StringBuilder("#");
+		byte[] derEncoded = GetDerEncoded();
+		for (int i = 0; i != derEncoded.Length; i++)
+		{
+			uint num = derEncoded[i];
+			stringBuilder.Append(table[(num >> 4) & 0xF]);
+			stringBuilder.Append(table[derEncoded[i] & 0xF]);
+		}
+		return stringBuilder.ToString();
+	}
+
+	public byte[] GetOctets()
+	{
+		return (byte[])str.Clone();
+	}
+
+	internal override void Encode(DerOutputStream derOut)
+	{
+		derOut.WriteEncoded(28, str);
+	}
+
+	protected override bool Asn1Equals(Asn1Object asn1Object)
+	{
+		if (!(asn1Object is DerUniversalString derUniversalString))
+		{
+			return false;
+		}
+		return Arrays.AreEqual(str, derUniversalString.str);
+	}
+}