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Diffstat (limited to 'fpga_curve.h')
| -rw-r--r-- | fpga_curve.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/fpga_curve.h b/fpga_curve.h new file mode 100644 index 0000000..db71e95 --- /dev/null +++ b/fpga_curve.h @@ -0,0 +1,64 @@ +//------------------------------------------------------------------------------ +// +// fpga_curve.h +// ------------------------------------ +// Elliptic curve arithmetic procedures +// +// Authors: Pavel Shatov +// +// Copyright (c) 2015-2018 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. +// +//------------------------------------------------------------------------------ + + +//------------------------------------------------------------------------------ +// Globals +//------------------------------------------------------------------------------ +extern FPGA_BUFFER ecdsa_n; // order of the base point +extern FPGA_BUFFER ecdsa_g_x, ecdsa_g_y; // the base point +extern FPGA_BUFFER ecdh_d_x, ecdh_d_y; // double of the multiplicand +extern FPGA_BUFFER ecdh_da, ecdh_db; // private keys +extern FPGA_BUFFER ecdh_qa_x, ecdh_qa_y; // Alice's public key +extern FPGA_BUFFER ecdh_qb_x, ecdh_qb_y; // Bob's public key +extern FPGA_BUFFER ecdh_s_x, ecdh_s_y; // shared secret + + +//------------------------------------------------------------------------------ +// Prototypes +//------------------------------------------------------------------------------ +void fpga_curve_init (); +void fpga_curve_scalar_multiply (FPGA_BUFFER *px, FPGA_BUFFER *py, FPGA_BUFFER *k, FPGA_BUFFER *qx, FPGA_BUFFER *qy); +void fpga_curve_add_jacobian (FPGA_BUFFER *px, FPGA_BUFFER *py, FPGA_BUFFER *pz, FPGA_BUFFER *qx, FPGA_BUFFER *qy, FPGA_BUFFER *rx, FPGA_BUFFER *ry, FPGA_BUFFER *rz); +void fpga_curve_double_jacobian (FPGA_BUFFER *px, FPGA_BUFFER *py, FPGA_BUFFER *pz, FPGA_BUFFER *rx, FPGA_BUFFER *ry, FPGA_BUFFER *rz); +void fpga_curve_point_to_affine (FPGA_BUFFER *px, FPGA_BUFFER *py, FPGA_BUFFER *pz, FPGA_BUFFER *qx, FPGA_BUFFER *qy); + + +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ |