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//------------------------------------------------------------------------------
//
// ecdh_fpga_model.h
// --------------------------------------------
// Base point scalar multiplier model for ECDSA
//
// Authors: Pavel Shatov
//
// Copyright (c) 2017-2018, 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 "test_vectors/ecdh_test_vectors.h"
//------------------------------------------------------------------------------
//
// Curve Selection
//
// USE_CURVE == 1 -> P-256
// USE_CURVE == 2 -> P-384
//
//------------------------------------------------------------------------------
#ifndef USE_CURVE
#define USE_CURVE 1
#endif
//------------------------------------------------------------------------------
// Model Parameters
//------------------------------------------------------------------------------
#if USE_CURVE == 1
#define OPERAND_WIDTH (256) // largest supported operand width in bits
#elif USE_CURVE == 2
#define OPERAND_WIDTH (384) // largest supported operand width in bits
#else
#error USE_CURVE must be either 1 or 2!
#endif
//------------------------------------------------------------------------------
// P-256 Parameters and Test Vectors
//------------------------------------------------------------------------------
/* Field Size */
#define P_256_Q {0xffffffff, 0x00000001, 0x00000000, 0x00000000, 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff}
/* Generic Numbers */
#define P_256_ZERO {0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000}
#define P_256_ONE {0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000001}
/* Division Factor */
#define P_256_DELTA {0x7fffffff, 0x80000000, 0x80000000, 0x00000000, 0x00000000, 0x80000000, 0x00000000, 0x00000000}
/* Base Point */
#define P_256_G_X {0x6b17d1f2, 0xe12c4247, 0xf8bce6e5, 0x63a440f2, 0x77037d81, 0x2deb33a0, 0xf4a13945, 0xd898c296}
#define P_256_G_Y {0x4fe342e2, 0xfe1a7f9b, 0x8ee7eb4a, 0x7c0f9e16, 0x2bce3357, 0x6b315ece, 0xcbb64068, 0x37bf51f5}
/* Base Point Order */
#define P_256_N {0xffffffff, 0x00000000, 0xffffffff, 0xffffffff, 0xbce6faad, 0xa7179e84, 0xf3b9cac2, 0xfc632551}
//------------------------------------------------------------------------------
// P-384 Parameters and Test Vectors
//------------------------------------------------------------------------------
/* Field Size */
#define P_384_Q {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xfffffffe, 0xffffffff, 0x00000000, 0x00000000, 0xffffffff}
/* Generic Numbers */
#define P_384_ZERO {0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000}
#define P_384_ONE {0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000001}
/* Division Factor */
#define P_384_DELTA {0x7fffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0x7fffffff, 0x80000000, 0x00000000, 0x80000000}
/* Base Point */
#define P_384_G_X {0xaa87ca22, 0xbe8b0537, 0x8eb1c71e, 0xf320ad74, 0x6e1d3b62, 0x8ba79b98, 0x59f741e0, 0x82542a38, 0x5502f25d, 0xbf55296c, 0x3a545e38, 0x72760ab7}
#define P_384_G_Y {0x3617de4a, 0x96262c6f, 0x5d9e98bf, 0x9292dc29, 0xf8f41dbd, 0x289a147c, 0xe9da3113, 0xb5f0b8c0, 0x0a60b1ce, 0x1d7e819d, 0x7a431d7c, 0x90ea0e5f}
/* Base Point Order */
#define P_384_N {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xc7634d81, 0xf4372ddf, 0x581a0db2, 0x48b0a77a, 0xecec196a, 0xccc52973}
//------------------------------------------------------------------------------
// Parameter and Test Vector Selection
//------------------------------------------------------------------------------
#if USE_CURVE == 1
#define ECDSA_Q P_256_Q
#define ECDSA_ZERO P_256_ZERO
#define ECDSA_ONE P_256_ONE
#define ECDSA_DELTA P_256_DELTA
#define ECDSA_G_X P_256_G_X
#define ECDSA_G_Y P_256_G_Y
#define ECDH_DA P_256_DA
#define ECDH_DB P_256_DB
#define ECDH_QA_X P_256_QA_X
#define ECDH_QA_Y P_256_QA_Y
#define ECDH_QB_X P_256_QB_X
#define ECDH_QB_Y P_256_QB_Y
#define ECDH_S_X P_256_S_X
#define ECDH_S_Y P_256_S_Y
#define ECDSA_N P_256_N
#elif USE_CURVE == 2
#define ECDSA_Q P_384_Q
#define ECDSA_ZERO P_384_ZERO
#define ECDSA_ONE P_384_ONE
#define ECDSA_DELTA P_384_DELTA
#define ECDSA_G_X P_384_G_X
#define ECDSA_G_Y P_384_G_Y
#define ECDH_DA P_384_DA
#define ECDH_DB P_384_DB
#define ECDH_QA_X P_384_QA_X
#define ECDH_QA_Y P_384_QA_Y
#define ECDH_QB_X P_384_QB_X
#define ECDH_QB_Y P_384_QB_Y
#define ECDH_S_X P_384_S_X
#define ECDH_S_Y P_384_S_Y
#define ECDSA_N P_384_N
#else
#error USE_CURVE must be either 1 or 2!
#endif
//------------------------------------------------------------------------------
// End-of-File
//------------------------------------------------------------------------------
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