From 1f8d13bf8d2e813f0c5da653c4abffb7a817db9a Mon Sep 17 00:00:00 2001 From: "Pavel V. Shatov (Meister)" Date: Wed, 19 Dec 2018 16:03:08 +0300 Subject: * New hardware architecture * Randomized test vector --- ecdsa_fpga_modular.h | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 ecdsa_fpga_modular.h (limited to 'ecdsa_fpga_modular.h') diff --git a/ecdsa_fpga_modular.h b/ecdsa_fpga_modular.h new file mode 100644 index 0000000..3b75779 --- /dev/null +++ b/ecdsa_fpga_modular.h @@ -0,0 +1,144 @@ +//------------------------------------------------------------------------------ +// +// ecdsa_fpga_modular.h +// ------------------------------------- +// Modular arithmetic routines for ECDSA +// +// Authors: Pavel Shatov +// +// Copyright (c) 2015-2016, 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. +// +//------------------------------------------------------------------------------ + + +//------------------------------------------------------------------------------ +// ECDSA Parameters (P-256) +//------------------------------------------------------------------------------ + +/* Field Size */ +#define ECDSA_P256_Q_INIT \ + {0xffffffff, 0x00000001, 0x00000000, 0x00000000, \ + 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff} + +/* Division Factor */ +#define ECDSA_P256_DELTA_INIT \ + {0x7fffffff, 0x80000000, 0x80000000, 0x00000000, \ + 0x00000000, 0x80000000, 0x00000000, 0x00000000} + + +//------------------------------------------------------------------------------ +// ECDSA Parameters (P-384) +//------------------------------------------------------------------------------ + +/* Field Size */ +#define ECDSA_P384_Q_INIT \ + {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, \ + 0xffffffff, 0xffffffff, 0xffffffff, 0xfffffffe, \ + 0xffffffff, 0x00000000, 0x00000000, 0xffffffff} + +/* Division Factor */ +#define ECDSA_P384_DELTA_INIT \ + {0x7fffffff, 0xffffffff, 0xffffffff, 0xffffffff, \ + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, \ + 0x7fffffff, 0x80000000, 0x00000000, 0x80000000} + + +//------------------------------------------------------------------------------ +// ECDSA Parameters Switch +//------------------------------------------------------------------------------ +#if USE_CURVE == 1 + +#define ECDSA_Q_INIT ECDSA_P256_Q_INIT +#define ECDSA_DELTA_INIT ECDSA_P256_DELTA_INIT + +#elif USE_CURVE == 2 + +#define ECDSA_Q_INIT ECDSA_P384_Q_INIT +#define ECDSA_DELTA_INIT ECDSA_P384_DELTA_INIT + +#else + +BAD_CURVE + +#endif + + +//------------------------------------------------------------------------------ +// Globals +//------------------------------------------------------------------------------ +extern FPGA_BUFFER ECDSA_Q; +extern FPGA_BUFFER ECDSA_DELTA; + + +//------------------------------------------------------------------------------ +// Prototypes +//------------------------------------------------------------------------------ +void fpga_modular_init (); + +void fpga_modular_add (const FPGA_BUFFER *A, const FPGA_BUFFER *B, FPGA_BUFFER *S); +void fpga_modular_sub (const FPGA_BUFFER *A, const FPGA_BUFFER *B, FPGA_BUFFER *D); +void fpga_modular_mul (const FPGA_BUFFER *A, const FPGA_BUFFER *B, FPGA_BUFFER *P); + +void fpga_modular_mul_helper_multiply (const FPGA_BUFFER *a, const FPGA_BUFFER *b, FPGA_WORD_EXTENDED *si); +void fpga_modular_mul_helper_accumulate (const FPGA_WORD_EXTENDED *si, FPGA_WORD *c); +void fpga_modular_mul_helper_reduce_p256 (const FPGA_WORD *c, FPGA_BUFFER *p); +void fpga_modular_mul_helper_reduce_p384 (const FPGA_WORD *c, FPGA_BUFFER *p); + +void fpga_modular_inv23_p256 (const FPGA_BUFFER *A, FPGA_BUFFER *A2, FPGA_BUFFER *A3); +void fpga_modular_inv23_p384 (const FPGA_BUFFER *A, FPGA_BUFFER *A2, FPGA_BUFFER *A3); + +void fpga_modular_inv23_p256_microcode (); +void fpga_modular_inv23_p384_microcode (); + + +//------------------------------------------------------------------------------ +// ECDSA Prototype Switch +//------------------------------------------------------------------------------ +#if USE_CURVE == 1 + +#define fpga_modular_mul_helper_reduce fpga_modular_mul_helper_reduce_p256 +#define fpga_modular_inv23 fpga_modular_inv23_p256 +#define fpga_modular_inv23_microcode fpga_modular_inv23_p256_microcode + +#elif USE_CURVE == 2 + +#define fpga_modular_mul_helper_reduce fpga_modular_mul_helper_reduce_p384 +#define fpga_modular_inv23 fpga_modular_inv23_p384 +#define fpga_modular_inv23_microcode fpga_modular_inv23_p384_microcode + +#else + +BAD_CURVE + +#endif + + +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ -- cgit v1.2.3