From 7dc094b2917544123a3f9582a14c581dec51b809 Mon Sep 17 00:00:00 2001 From: "Pavel V. Shatov (Meister)" Date: Mon, 24 Sep 2018 21:36:19 +0300 Subject: Shared piece of microcode (modular inversion) --- curve25519/curve25519_fpga_microcode.h | 126 +++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 curve25519/curve25519_fpga_microcode.h (limited to 'curve25519/curve25519_fpga_microcode.h') diff --git a/curve25519/curve25519_fpga_microcode.h b/curve25519/curve25519_fpga_microcode.h new file mode 100644 index 0000000..10d29ca --- /dev/null +++ b/curve25519/curve25519_fpga_microcode.h @@ -0,0 +1,126 @@ +//------------------------------------------------------------------------------ +// +// curve25519_fpga_microcode.h +// ------------------------------------- +// Microcode Architecture for Curve25519 +// +// Authors: Pavel Shatov +// +// Copyright (c) 2018 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. +// +//------------------------------------------------------------------------------ + + +//------------------------------------------------------------------------------ +// Headers +//------------------------------------------------------------------------------ +#include + + +//------------------------------------------------------------------------------ +enum UOP_BANK +//------------------------------------------------------------------------------ +{ + BANK_LO, BANK_HI +}; + + +//-------------------------- +enum CURVE25519_UOP_OPERAND +//-------------------------- +{ + CONST_ZERO, + CONST_ONE, + + INVERT_R1, + INVERT_R2, + + INVERT_T_1, + INVERT_T_10, + INVERT_T_1001, + INVERT_T_1011, + + INVERT_T_X5, + INVERT_T_X10, + INVERT_T_X20, + INVERT_T_X40, + INVERT_T_X50, + INVERT_T_X100, + + CURVE25519_UOP_OPERAND_COUNT +}; + + +//------------------------------------------------------------------------------ +enum UOP_MODULUS +//------------------------------------------------------------------------------ +{ + MOD_1P, + MOD_2P +}; + + +//------------------------------------------------------------------------------ +enum UOP_MATH +//------------------------------------------------------------------------------ +{ + ADD, SUB, MUL +}; + + +//------------------------------------------------------------------------------ +// Prototypes (Micro-Operations) +//------------------------------------------------------------------------------ +void uop_move (UOP_BANK src, int s_op1, + UOP_BANK dst, int d_op1, + FPGA_BUFFER *buf_lo, FPGA_BUFFER *buf_hi); + +void uop_move2 (UOP_BANK src, int s_op1, int s_op2, + UOP_BANK dst, int d_op1, int d_op2, + FPGA_BUFFER *buf_lo, FPGA_BUFFER *buf_hi); + +void uop_calc (UOP_MATH math, + UOP_BANK src, int s_op1, int s_op2, + UOP_BANK dst, int d_op, + FPGA_BUFFER *buf_lo, FPGA_BUFFER *buf_hi, + UOP_MODULUS mod); + +void uop_load (const FPGA_BUFFER *mem, UOP_BANK dst, int d_op, FPGA_BUFFER *buf_lo, FPGA_BUFFER *buf_hi); +void uop_stor (const FPGA_BUFFER *buf_lo, const FPGA_BUFFER *buf_hi, UOP_BANK src, int s_op, FPGA_BUFFER *mem); + + +//------------------------------------------------------------------------------ +// Prototype (Macro-Operation) +//------------------------------------------------------------------------------ +void fpga_modular_inv_microcode (FPGA_BUFFER *buf_lo, FPGA_BUFFER *buf_hi); + + +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ -- cgit v1.2.3