1 files changed, 80 insertions, 0 deletions
diff --git a/Crypto/src/bcpg/DsaPublicBcpgKey.cs b/Crypto/src/bcpg/DsaPublicBcpgKey.cs
new file mode 100644
index 000000000..61159567c
--- /dev/null
+++ b/Crypto/src/bcpg/DsaPublicBcpgKey.cs
@@ -0,0 +1,80 @@
+using System;
+
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Bcpg
+{
+ /// <remarks>Base class for a DSA public key.</remarks>
+ public class DsaPublicBcpgKey
+ : BcpgObject, IBcpgKey
+ {
+ private readonly MPInteger p, q, g, y;
+
+ /// <param name="bcpgIn">The stream to read the packet from.</param>
+ public DsaPublicBcpgKey(
+ BcpgInputStream bcpgIn)
+ {
+ this.p = new MPInteger(bcpgIn);
+ this.q = new MPInteger(bcpgIn);
+ this.g = new MPInteger(bcpgIn);
+ this.y = new MPInteger(bcpgIn);
+ }
+
+ public DsaPublicBcpgKey(
+ BigInteger p,
+ BigInteger q,
+ BigInteger g,
+ BigInteger y)
+ {
+ this.p = new MPInteger(p);
+ this.q = new MPInteger(q);
+ this.g = new MPInteger(g);
+ this.y = new MPInteger(y);
+ }
+
+ /// <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(p, q, g, y);
+ }
+
+ public BigInteger G
+ {
+ get { return g.Value; }
+ }
+
+ public BigInteger P
+ {
+ get { return p.Value; }
+ }
+
+ public BigInteger Q
+ {
+ get { return q.Value; }
+ }
+
+ public BigInteger Y
+ {
+ get { return y.Value; }
+ }
+ }
+}
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