1 files changed, 17 insertions, 0 deletions
diff --git a/crypto/src/crypto/IDsaExt.cs b/crypto/src/crypto/IDsaExt.cs
new file mode 100644
index 000000000..15b55787a
--- /dev/null
+++ b/crypto/src/crypto/IDsaExt.cs
@@ -0,0 +1,17 @@
+using System;
+
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Crypto
+{
+ /// <summary>
+ /// An "extended" interface for classes implementing DSA-style algorithms, that provides access
+ /// to the group order.
+ /// </summary>
+ public interface IDsaExt
+ : IDsa
+ {
+ /// <summary>The order of the group that the r, s values in signatures belong to.</summary>
+ BigInteger Order { get; }
+ }
+}
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