init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Crypto/IDerivationFunction.cs

@@ -0,0 +1,10 @@
+namespace Org.BouncyCastle.Crypto;
+
+public interface IDerivationFunction
+{
+	IDigest Digest { get; }
+
+	void Init(IDerivationParameters parameters);
+
+	int GenerateBytes(byte[] output, int outOff, int length);
+}