diff options
Diffstat (limited to 'stm32_driver')
| -rw-r--r-- | stm32_driver/ecdsa256_driver_sample.c | 63 | ||||
| -rw-r--r-- | stm32_driver/ecdsa_model.h | 204 |
2 files changed, 52 insertions, 215 deletions
diff --git a/stm32_driver/ecdsa256_driver_sample.c b/stm32_driver/ecdsa256_driver_sample.c index 8047e98..fcfd3ae 100644 --- a/stm32_driver/ecdsa256_driver_sample.c +++ b/stm32_driver/ecdsa256_driver_sample.c @@ -1,5 +1,5 @@ // -// simple driver to test "ecdsa384" core in hardware +// simple driver to test "ecdsa256" core in hardware // // @@ -31,7 +31,7 @@ // curve selection #define USE_CURVE 1 -#include "ecdsa_model.h" +#include "../../../user/shatov/ecdsa_fpga_model/ecdsa_model.h" #define BUF_NUM_WORDS (OPERAND_WIDTH / (sizeof(uint32_t) << 3)) // 8 @@ -50,9 +50,16 @@ static const uint32_t p256_i[BUF_NUM_WORDS] = ECDSA_ONE; static const uint32_t p256_gx[BUF_NUM_WORDS] = ECDSA_G_X; static const uint32_t p256_gy[BUF_NUM_WORDS] = ECDSA_G_Y; +static const uint32_t p256_hx[BUF_NUM_WORDS] = ECDSA_H_X; +static const uint32_t p256_hy[BUF_NUM_WORDS] = ECDSA_H_Y; + static const uint32_t p256_z[BUF_NUM_WORDS] = ECDSA_ZERO; static const uint32_t p256_n[BUF_NUM_WORDS] = ECDSA_N; +static uint32_t p256_2[BUF_NUM_WORDS]; // 2 +static uint32_t p256_n1[BUF_NUM_WORDS]; // n + 1 +static uint32_t p256_n2[BUF_NUM_WORDS]; // n + 2 + // // prototypes // @@ -88,20 +95,54 @@ int main() while (1); } + // prepare more numbers + size_t w; + for (w=0; w<BUF_NUM_WORDS; w++) + { p256_2[w] = p256_z[w]; // p256_2 = p256_z = 0 + p256_n1[w] = p256_n[w]; // p256_n1 = p256_n = N + p256_n2[w] = p256_n[w]; // p256_n2 = p256_n = N + } + + p256_2[BUF_NUM_WORDS-1] += 2; // p256_2 = 2 + p256_n1[BUF_NUM_WORDS-1] += 1; // p256_n1 = N + 1 + p256_n2[BUF_NUM_WORDS-1] += 2; // p256_n2 = N + 2 + + + // repeat forever while (1) { ok = 1; - ok = ok && test_p256_multiplier(p256_d, p256_qx, p256_qy); - ok = ok && test_p256_multiplier(p256_k, p256_rx, p256_ry); - ok = ok && test_p256_multiplier(p256_z, p256_z, p256_z); - ok = ok && test_p256_multiplier(p256_i, p256_gx, p256_gy); - ok = ok && test_p256_multiplier(p256_n, p256_z, p256_z); - + + ok = ok && test_p256_multiplier(p256_d, p256_qx, p256_qy); /* Q = d * G */ + ok = ok && test_p256_multiplier(p256_k, p256_rx, p256_ry); /* R = k * G */ + + ok = ok && test_p256_multiplier(p256_z, p256_z, p256_z); /* O = 0 * G */ + ok = ok && test_p256_multiplier(p256_i, p256_gx, p256_gy); /* G = 1 * G */ + + ok = ok && test_p256_multiplier(p256_n, p256_z, p256_z); /* O = n * G */ + + ok = ok && test_p256_multiplier(p256_n1, p256_gx, p256_gy); /* G = (n + 1) * G */ + + // + // The following two vectors test the virtually never taken path in the curve point + // addition routine when both input points are the same. During the first test (2 * G) + // the double of the base point is computed at the second doubling step of the multiplication + // algorithm, which does not require any special handling. During the second test the + // precomputed double of the base point (stored in internal read-only memory) is returned, + // because after doubling of G * ((n + 1) / 2) we get G * (n + 1) = G. The adder then has to + // compute G + G for which the formulae don't work, and special handling is required. The two + // test vectors verify that the hardcoded double of the base point matches the one computed + // on the fly. Note that in practice one should never be multiplying by anything larger than (n-1), + // because both the secret key and the per-message (random) number must be from [1, n-1]. + // + ok = ok && test_p256_multiplier(p256_2, p256_hx, p256_hy); /* H = 2 * G */ + ok = ok && test_p256_multiplier(p256_n2, p256_hx, p256_hy); /* H = (n + 2) * G */ + if (!ok) { - led_off(LED_GREEN); - led_on(LED_RED); - } + led_off(LED_GREEN); + led_on(LED_RED); + } toggle_yellow_led(); } diff --git a/stm32_driver/ecdsa_model.h b/stm32_driver/ecdsa_model.h deleted file mode 100644 index 620c56e..0000000 --- a/stm32_driver/ecdsa_model.h +++ /dev/null @@ -1,204 +0,0 @@ -//------------------------------------------------------------------------------ -// -// ecdsa_model.h -// -------------------------------------------- -// Base point scalar multiplier model for ECDSA -// -// Authors: Pavel Shatov -// -// Copyright (c) 2015-2016, 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. -// -//------------------------------------------------------------------------------ - - -//------------------------------------------------------------------------------ -// -// Curve Selection -// -// USE_CURVE == 1 -> P-256 -// USE_CURVE == 2 -> P-384 -// -//------------------------------------------------------------------------------ - - -//------------------------------------------------------------------------------ -// 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} - -/* Doubled Base Point */ -#define P_256_H_X {0x29d05c19, 0x3da77b71, 0x0e863235, 0x38b77e1b, 0x11f904fe, 0xa42998be, 0x16bd8d74, 0x4ece7ad0} -#define P_256_H_Y {0xb01cbd1c, 0x01e58065, 0x711814b5, 0x83f061e9, 0xd431cca9, 0x94cea131, 0x3449bf97, 0xc840ae07} - -/* Base Point Order */ -#define P_256_N {0xffffffff, 0x00000000, 0xffffffff, 0xffffffff, 0xbce6faad, 0xa7179e84, 0xf3b9cac2, 0xfc632551} - -/* Private Key */ -#define P_256_D {0x70a12c2d, 0xb16845ed, 0x56ff68cf, 0xc21a472b, 0x3f04d7d6, 0x851bf634, 0x9f2d7d5b, 0x3452b38a} - -/* Per-message Random Number */ -#define P_256_K {0x580ec00d, 0x85643433, 0x4cef3f71, 0xecaed496, 0x5b12ae37, 0xfa47055b, 0x1965c7b1, 0x34ee45d0} - -/* Public Key */ -#define P_256_Q_X {0x8101ece4, 0x7464a6ea, 0xd70cf69a, 0x6e2bd3d8, 0x8691a326, 0x2d22cba4, 0xf7635eaf, 0xf26680a8} -#define P_256_Q_Y {0xd8a12ba6, 0x1d599235, 0xf67d9cb4, 0xd58f1783, 0xd3ca43e7, 0x8f0a5aba, 0xa6240799, 0x36c0c3a9} - -/* Part of Signature */ -#define P_256_R_X {0x7214bc96, 0x47160bbd, 0x39ff2f80, 0x533f5dc6, 0xddd70ddf, 0x86bb8156, 0x61e805d5, 0xd4e6f27c} -#define P_256_R_Y {0x8b81e3e9, 0x77597110, 0xc7cf2633, 0x435b2294, 0xb7264298, 0x7defd3d4, 0x007e1cfc, 0x5df84541} - - -//------------------------------------------------------------------------------ -// 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, 0x0000000, 0x080000000} - -/* 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} - -/* Doubled Base Point */ -#define P_384_H_X {0xaaf06bba, 0x82e9f590, 0xe29c71c2, 0x19bea517, 0x23c5893a, 0xe8b0c8cf, 0x4c117c3e, 0xfb57ab8d, 0x55fa1b42, 0x8155ad27, 0x8b574391, 0x1b13ea8a} -#define P_384_H_Y {0xc9e821b5, 0x69d9d390, 0xa2616740, 0x6d6d23d6, 0x070be242, 0xd765eb83, 0x1625ceec, 0x4a0f473e, 0xf59f4e30, 0xe2817e62, 0x85bce284, 0x6f15f19d} - -/* Base Point Order */ -#define P_384_N {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xc7634d81, 0xf4372ddf, 0x581a0db2, 0x48b0a77a, 0xecec196a, 0xccc52973} - -/* Private Key */ -#define P_384_D {0xc838b852, 0x53ef8dc7, 0x394fa580, 0x8a518398, 0x1c7deef5, 0xa69ba8f4, 0xf2117ffe, 0xa39cfcd9, 0x0e95f6cb, 0xc854abac, 0xab701d50, 0xc1f3cf24} - -/* Per-message Random Number */ -#define P_384_K {0xdc6b4403, 0x6989a196, 0xe39d1cda, 0xc000812f, 0x4bdd8b2d, 0xb41bb33a, 0xf5137258, 0x5ebd1db6, 0x3f0ce827, 0x5aa1fd45, 0xe2d2a735, 0xf8749359} - -/* Public Key */ -#define P_384_Q_X {0x1fbac8ee, 0xbd0cbf35, 0x640b39ef, 0xe0808dd7, 0x74debff2, 0x0a2a329e, 0x91713baf, 0x7d7f3c3e, 0x81546d88, 0x3730bee7, 0xe48678f8, 0x57b02ca0} -#define P_384_Q_Y {0xeb213103, 0xbd68ce34, 0x3365a8a4, 0xc3d4555f, 0xa385f533, 0x0203bdd7, 0x6ffad1f3, 0xaffb9575, 0x1c132007, 0xe1b24035, 0x3cb0a4cf, 0x1693bdf9} - -/* Part of Signature */ -#define P_384_R_X {0xa0c27ec8, 0x93092dea, 0x1e1bd2cc, 0xfed3cf94, 0x5c8134ed, 0x0c9f8131, 0x1a0f4a05, 0x942db8db, 0xed8dd59f, 0x267471d5, 0x462aa14f, 0xe72de856} -#define P_384_R_Y {0x85564940, 0x9815bb91, 0x424eaca5, 0xfd76c973, 0x75d575d1, 0x422ec53d, 0x343bd33b, 0x847fdf0c, 0x11569685, 0xb528ab25, 0x49301542, 0x8d7cf72b} - - -//------------------------------------------------------------------------------ -// 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 ECDSA_H_X P_256_H_X -#define ECDSA_H_Y P_256_H_Y - -#define ECDSA_N P_256_N -#define ECDSA_D P_256_D -#define ECDSA_K P_256_K - -#define ECDSA_Q_X P_256_Q_X -#define ECDSA_Q_Y P_256_Q_Y - -#define ECDSA_R_X P_256_R_X -#define ECDSA_R_Y P_256_R_Y - -#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 ECDSA_H_X P_384_H_X -#define ECDSA_H_Y P_384_H_Y - -#define ECDSA_N P_384_N -#define ECDSA_D P_384_D -#define ECDSA_K P_384_K - -#define ECDSA_Q_X P_384_Q_X -#define ECDSA_Q_Y P_384_Q_Y - -#define ECDSA_R_X P_384_R_X -#define ECDSA_R_Y P_384_R_Y - -#else - -#error USE_CURVE must be either 1 or 2! - -#endif - - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ |