init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/X509/KeyUsage.cs

@@ -0,0 +1,55 @@
+namespace Org.BouncyCastle.Asn1.X509;
+
+public class KeyUsage : DerBitString
+{
+	public const int DigitalSignature = 128;
+
+	public const int NonRepudiation = 64;
+
+	public const int KeyEncipherment = 32;
+
+	public const int DataEncipherment = 16;
+
+	public const int KeyAgreement = 8;
+
+	public const int KeyCertSign = 4;
+
+	public const int CrlSign = 2;
+
+	public const int EncipherOnly = 1;
+
+	public const int DecipherOnly = 32768;
+
+	public new static KeyUsage GetInstance(object obj)
+	{
+		if (obj is KeyUsage)
+		{
+			return (KeyUsage)obj;
+		}
+		if (obj is X509Extension)
+		{
+			return GetInstance(X509Extension.ConvertValueToObject((X509Extension)obj));
+		}
+		return new KeyUsage(DerBitString.GetInstance(obj));
+	}
+
+	public KeyUsage(int usage)
+		: base(usage)
+	{
+	}
+
+	private KeyUsage(DerBitString usage)
+		: base(usage.GetBytes(), usage.PadBits)
+	{
+	}
+
+	public override string ToString()
+	{
+		byte[] bytes = GetBytes();
+		if (bytes.Length == 1)
+		{
+			return "KeyUsage: 0x" + (bytes[0] & 0xFF).ToString("X");
+		}
+		return "KeyUsage: 0x" + (((bytes[1] & 0xFF) << 8) | (bytes[0] & 0xFF)).ToString("X");
+	}
+}