init commit

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

@@ -0,0 +1,28 @@
+namespace Org.BouncyCastle.Crypto;
+
+internal class Check
+{
+	internal static void DataLength(bool condition, string msg)
+	{
+		if (condition)
+		{
+			throw new DataLengthException(msg);
+		}
+	}
+
+	internal static void DataLength(byte[] buf, int off, int len, string msg)
+	{
+		if (off + len > buf.Length)
+		{
+			throw new DataLengthException(msg);
+		}
+	}
+
+	internal static void OutputLength(byte[] buf, int off, int len, string msg)
+	{
+		if (off + len > buf.Length)
+		{
+			throw new OutputLengthException(msg);
+		}
+	}
+}