Initial Commit

iTechSharp/srcbc/bcpg/RsaPublicBcpgKey.cs

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+using System;
+
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Bcpg
+{
+	/// <remarks>Base class for an RSA public key.</remarks>
+	public class RsaPublicBcpgKey
+		: BcpgObject, IBcpgKey
+	{
+		private readonly MPInteger n, e;
+
+		/// <summary>Construct an RSA public key from the passed in stream.</summary>
+		public RsaPublicBcpgKey(
+			BcpgInputStream bcpgIn)
+		{
+			this.n = new MPInteger(bcpgIn);
+			this.e = new MPInteger(bcpgIn);
+		}
+
+		/// <param name="n">The modulus.</param>
+		/// <param name="e">The public exponent.</param>
+		public RsaPublicBcpgKey(
+			BigInteger	n,
+			BigInteger	e)
+		{
+			this.n = new MPInteger(n);
+			this.e = new MPInteger(e);
+		}
+
+		public BigInteger PublicExponent
+		{
+			get { return e.Value; }
+		}
+
+		public BigInteger Modulus
+		{
+			get { return n.Value; }
+		}
+
+		/// <summary>The format, as a string, always "PGP".</summary>
+		public string Format
+		{
+			get { return "PGP"; }
+		}
+
+		/// <summary>Return the standard PGP encoding of the key.</summary>
+		public override byte[] GetEncoded()
+		{
+			try
+			{
+				return base.GetEncoded();
+			}
+			catch (Exception)
+			{
+				return null;
+			}
+		}
+
+		public override void Encode(
+			BcpgOutputStream bcpgOut)
+		{
+			bcpgOut.WriteObjects(n, e);
+		}
+	}
+}