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diff --git a/rtl/lowlevel/subtractor32_wrapper.v b/rtl/lowlevel/subtractor32_wrapper.v
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+//------------------------------------------------------------------------------
+//
+// subtractor32_wrapper.v
+// -----------------------------------------------------------------------------
+// Wrapper for 32-bit subtractor.
+//
+// Authors: Pavel Shatov
+//
+// Copyright (c) 2016, NORDUnet A/S
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// - Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+//
+// - Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// - Neither the name of the NORDUnet nor the names of its contributors may be
+//   used to endorse or promote products derived from this software without
+//   specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//------------------------------------------------------------------------------
+
+module subtractor32_wrapper
+	(
+		input					clk,
+		input		[31: 0]	a,
+		input		[31: 0]	b,
+		output	[31: 0]	d,
+		input					b_in,
+		output				b_out	
+	);
+
+			//
+		// Include Primitive Selector
+		//
+`include "ecdsa_lowlevel_settings.v"
+
+
+		//
+		// Instantiate Vendor/Generic Primitive
+		//
+	`SUBTRACTOR32_PRIMITIVE subtractor32_inst
+	(
+		.clk(clk),
+		.a(a),
+		.b(b),
+		.d(d),
+		.b_in(b_in),
+		.b_out(b_out)
+	);
+
+endmodule
+
+//------------------------------------------------------------------------------
+// End-of-File
+//------------------------------------------------------------------------------