init commit

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

@@ -0,0 +1,10 @@
+namespace Org.BouncyCastle.Crypto;
+
+public interface IRawAgreement
+{
+	int AgreementSize { get; }
+
+	void Init(ICipherParameters parameters);
+
+	void CalculateAgreement(ICipherParameters publicKey, byte[] buf, int off);
+}