init commit

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

@@ -0,0 +1,77 @@
+using System;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1;
+
+public class DerBmpString : DerStringBase
+{
+	private readonly string str;
+
+	public static DerBmpString GetInstance(object obj)
+	{
+		if (obj == null || obj is DerBmpString)
+		{
+			return (DerBmpString)obj;
+		}
+		throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
+	}
+
+	public static DerBmpString GetInstance(Asn1TaggedObject obj, bool isExplicit)
+	{
+		Asn1Object asn1Object = obj.GetObject();
+		if (isExplicit || asn1Object is DerBmpString)
+		{
+			return GetInstance(asn1Object);
+		}
+		return new DerBmpString(Asn1OctetString.GetInstance(asn1Object).GetOctets());
+	}
+
+	public DerBmpString(byte[] str)
+	{
+		if (str == null)
+		{
+			throw new ArgumentNullException("str");
+		}
+		char[] array = new char[str.Length / 2];
+		for (int i = 0; i != array.Length; i++)
+		{
+			array[i] = (char)((str[2 * i] << 8) | (str[2 * i + 1] & 0xFF));
+		}
+		this.str = new string(array);
+	}
+
+	public DerBmpString(string str)
+	{
+		if (str == null)
+		{
+			throw new ArgumentNullException("str");
+		}
+		this.str = str;
+	}
+
+	public override string GetString()
+	{
+		return str;
+	}
+
+	protected override bool Asn1Equals(Asn1Object asn1Object)
+	{
+		if (!(asn1Object is DerBmpString derBmpString))
+		{
+			return false;
+		}
+		return str.Equals(derBmpString.str);
+	}
+
+	internal override void Encode(DerOutputStream derOut)
+	{
+		char[] array = str.ToCharArray();
+		byte[] array2 = new byte[array.Length * 2];
+		for (int i = 0; i != array.Length; i++)
+		{
+			array2[2 * i] = (byte)((int)array[i] >> 8);
+			array2[2 * i + 1] = (byte)array[i];
+		}
+		derOut.WriteEncoded(30, array2);
+	}
+}