crypto/ecrdsa_defs.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Definitions of EC-RDSA Curve Parameters
   4  *
   5  * Copyright (c) 2019 Vitaly Chikunov <vt@altlinux.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  */
  12
  13 #ifndef _CRYTO_ECRDSA_DEFS_H
  14 #define _CRYTO_ECRDSA_DEFS_H
  15
  16 #include "ecc.h"
  17
  18 #define ECRDSA_MAX_SIG_SIZE (2 * 512 / 8)
  19 #define ECRDSA_MAX_DIGITS (512 / 64)
  20
  21 /*
  22  * EC-RDSA uses its own set of curves.
  23  *
  24  * cp256{a,b,c} curves first defined for GOST R 34.10-2001 in RFC 4357 (as
  25  * 256-bit {A,B,C}-ParamSet), but inherited for GOST R 34.10-2012 and
  26  * proposed for use in R 50.1.114-2016 and RFC 7836 as the 256-bit curves.
  27  */
  28 /* OID_gostCPSignA 1.2.643.2.2.35.1 */
  29 static u64 cp256a_g_x[] = {
  30         0x0000000000000001ull, 0x0000000000000000ull,
  31         0x0000000000000000ull, 0x0000000000000000ull, };
  32 static u64 cp256a_g_y[] = {
  33         0x22ACC99C9E9F1E14ull, 0x35294F2DDF23E3B1ull,
  34         0x27DF505A453F2B76ull, 0x8D91E471E0989CDAull, };
  35 static u64 cp256a_p[] = { /* p = 2^256 - 617 */
  36         0xFFFFFFFFFFFFFD97ull, 0xFFFFFFFFFFFFFFFFull,
  37         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
  38 static u64 cp256a_n[] = {
  39         0x45841B09B761B893ull, 0x6C611070995AD100ull,
  40         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
  41 static u64 cp256a_a[] = { /* a = p - 3 */
  42         0xFFFFFFFFFFFFFD94ull, 0xFFFFFFFFFFFFFFFFull,
  43         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
  44 static u64 cp256a_b[] = {
  45         0x00000000000000a6ull, 0x0000000000000000ull,
  46         0x0000000000000000ull, 0x0000000000000000ull };
  47
  48 static struct ecc_curve gost_cp256a = {
  49         .name = "cp256a",
  50         .g = {
  51                 .x = cp256a_g_x,
  52                 .y = cp256a_g_y,
  53                 .ndigits = 256 / 64,
  54         },
  55         .p = cp256a_p,
  56         .n = cp256a_n,
  57         .a = cp256a_a,
  58         .b = cp256a_b
  59 };
  60
  61 /* OID_gostCPSignB 1.2.643.2.2.35.2 */
  62 static u64 cp256b_g_x[] = {
  63         0x0000000000000001ull, 0x0000000000000000ull,
  64         0x0000000000000000ull, 0x0000000000000000ull, };
  65 static u64 cp256b_g_y[] = {
  66         0x744BF8D717717EFCull, 0xC545C9858D03ECFBull,
  67         0xB83D1C3EB2C070E5ull, 0x3FA8124359F96680ull, };
  68 static u64 cp256b_p[] = { /* p = 2^255 + 3225 */
  69         0x0000000000000C99ull, 0x0000000000000000ull,
  70         0x0000000000000000ull, 0x8000000000000000ull, };
  71 static u64 cp256b_n[] = {
  72         0xE497161BCC8A198Full, 0x5F700CFFF1A624E5ull,
  73         0x0000000000000001ull, 0x8000000000000000ull, };
  74 static u64 cp256b_a[] = { /* a = p - 3 */
  75         0x0000000000000C96ull, 0x0000000000000000ull,
  76         0x0000000000000000ull, 0x8000000000000000ull, };
  77 static u64 cp256b_b[] = {
  78         0x2F49D4CE7E1BBC8Bull, 0xE979259373FF2B18ull,
  79         0x66A7D3C25C3DF80Aull, 0x3E1AF419A269A5F8ull, };
  80
  81 static struct ecc_curve gost_cp256b = {
  82         .name = "cp256b",
  83         .g = {
  84                 .x = cp256b_g_x,
  85                 .y = cp256b_g_y,
  86                 .ndigits = 256 / 64,
  87         },
  88         .p = cp256b_p,
  89         .n = cp256b_n,
  90         .a = cp256b_a,
  91         .b = cp256b_b
  92 };
  93
  94 /* OID_gostCPSignC 1.2.643.2.2.35.3 */
  95 static u64 cp256c_g_x[] = {
  96         0x0000000000000000ull, 0x0000000000000000ull,
  97         0x0000000000000000ull, 0x0000000000000000ull, };
  98 static u64 cp256c_g_y[] = {
  99         0x366E550DFDB3BB67ull, 0x4D4DC440D4641A8Full,
 100         0x3CBF3783CD08C0EEull, 0x41ECE55743711A8Cull, };
 101 static u64 cp256c_p[] = {
 102         0x7998F7B9022D759Bull, 0xCF846E86789051D3ull,
 103         0xAB1EC85E6B41C8AAull, 0x9B9F605F5A858107ull,
 104         /* pre-computed value for Barrett's reduction */
 105         0xedc283cdd217b5a2ull, 0xbac48fc06398ae59ull,
 106         0x405384d55f9f3b73ull, 0xa51f176161f1d734ull,
 107         0x0000000000000001ull, };
 108 static u64 cp256c_n[] = {
 109         0xF02F3A6598980BB9ull, 0x582CA3511EDDFB74ull,
 110         0xAB1EC85E6B41C8AAull, 0x9B9F605F5A858107ull, };
 111 static u64 cp256c_a[] = { /* a = p - 3 */
 112         0x7998F7B9022D7598ull, 0xCF846E86789051D3ull,
 113         0xAB1EC85E6B41C8AAull, 0x9B9F605F5A858107ull, };
 114 static u64 cp256c_b[] = {
 115         0x000000000000805aull, 0x0000000000000000ull,
 116         0x0000000000000000ull, 0x0000000000000000ull, };
 117
 118 static struct ecc_curve gost_cp256c = {
 119         .name = "cp256c",
 120         .g = {
 121                 .x = cp256c_g_x,
 122                 .y = cp256c_g_y,
 123                 .ndigits = 256 / 64,
 124         },
 125         .p = cp256c_p,
 126         .n = cp256c_n,
 127         .a = cp256c_a,
 128         .b = cp256c_b
 129 };
 130
 131 /* tc512{a,b} curves first recommended in 2013 and then standardized in
 132  * R 50.1.114-2016 and RFC 7836 for use with GOST R 34.10-2012 (as TC26
 133  * 512-bit ParamSet{A,B}).
 134  */
 135 /* OID_gostTC26Sign512A 1.2.643.7.1.2.1.2.1 */
 136 static u64 tc512a_g_x[] = {
 137         0x0000000000000003ull, 0x0000000000000000ull,
 138         0x0000000000000000ull, 0x0000000000000000ull,
 139         0x0000000000000000ull, 0x0000000000000000ull,
 140         0x0000000000000000ull, 0x0000000000000000ull, };
 141 static u64 tc512a_g_y[] = {
 142         0x89A589CB5215F2A4ull, 0x8028FE5FC235F5B8ull,
 143         0x3D75E6A50E3A41E9ull, 0xDF1626BE4FD036E9ull,
 144         0x778064FDCBEFA921ull, 0xCE5E1C93ACF1ABC1ull,
 145         0xA61B8816E25450E6ull, 0x7503CFE87A836AE3ull, };
 146 static u64 tc512a_p[] = { /* p = 2^512 - 569 */
 147         0xFFFFFFFFFFFFFDC7ull, 0xFFFFFFFFFFFFFFFFull,
 148         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
 149         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
 150         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, };
 151 static u64 tc512a_n[] = {
 152         0xCACDB1411F10B275ull, 0x9B4B38ABFAD2B85Dull,
 153         0x6FF22B8D4E056060ull, 0x27E69532F48D8911ull,
 154         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
 155         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, };
 156 static u64 tc512a_a[] = { /* a = p - 3 */
 157         0xFFFFFFFFFFFFFDC4ull, 0xFFFFFFFFFFFFFFFFull,
 158         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
 159         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
 160         0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, };
 161 static u64 tc512a_b[] = {
 162         0x503190785A71C760ull, 0x862EF9D4EBEE4761ull,
 163         0x4CB4574010DA90DDull, 0xEE3CB090F30D2761ull,
 164         0x79BD081CFD0B6265ull, 0x34B82574761CB0E8ull,
 165         0xC1BD0B2B6667F1DAull, 0xE8C2505DEDFC86DDull, };
 166
 167 static struct ecc_curve gost_tc512a = {
 168         .name = "tc512a",
 169         .g = {
 170                 .x = tc512a_g_x,
 171                 .y = tc512a_g_y,
 172                 .ndigits = 512 / 64,
 173         },
 174         .p = tc512a_p,
 175         .n = tc512a_n,
 176         .a = tc512a_a,
 177         .b = tc512a_b
 178 };
 179
 180 /* OID_gostTC26Sign512B 1.2.643.7.1.2.1.2.2 */
 181 static u64 tc512b_g_x[] = {
 182         0x0000000000000002ull, 0x0000000000000000ull,
 183         0x0000000000000000ull, 0x0000000000000000ull,
 184         0x0000000000000000ull, 0x0000000000000000ull,
 185         0x0000000000000000ull, 0x0000000000000000ull, };
 186 static u64 tc512b_g_y[] = {
 187         0x7E21340780FE41BDull, 0x28041055F94CEEECull,
 188         0x152CBCAAF8C03988ull, 0xDCB228FD1EDF4A39ull,
 189         0xBE6DD9E6C8EC7335ull, 0x3C123B697578C213ull,
 190         0x2C071E3647A8940Full, 0x1A8F7EDA389B094Cull, };
 191 static u64 tc512b_p[] = { /* p = 2^511 + 111 */
 192         0x000000000000006Full, 0x0000000000000000ull,
 193         0x0000000000000000ull, 0x0000000000000000ull,
 194         0x0000000000000000ull, 0x0000000000000000ull,
 195         0x0000000000000000ull, 0x8000000000000000ull, };
 196 static u64 tc512b_n[] = {
 197         0xC6346C54374F25BDull, 0x8B996712101BEA0Eull,
 198         0xACFDB77BD9D40CFAull, 0x49A1EC142565A545ull,
 199         0x0000000000000001ull, 0x0000000000000000ull,
 200         0x0000000000000000ull, 0x8000000000000000ull, };
 201 static u64 tc512b_a[] = { /* a = p - 3 */
 202         0x000000000000006Cull, 0x0000000000000000ull,
 203         0x0000000000000000ull, 0x0000000000000000ull,
 204         0x0000000000000000ull, 0x0000000000000000ull,
 205         0x0000000000000000ull, 0x8000000000000000ull, };
 206 static u64 tc512b_b[] = {
 207         0xFB8CCBC7C5140116ull, 0x50F78BEE1FA3106Eull,
 208         0x7F8B276FAD1AB69Cull, 0x3E965D2DB1416D21ull,
 209         0xBF85DC806C4B289Full, 0xB97C7D614AF138BCull,
 210         0x7E3E06CF6F5E2517ull, 0x687D1B459DC84145ull, };
 211
 212 static struct ecc_curve gost_tc512b = {
 213         .name = "tc512b",
 214         .g = {
 215                 .x = tc512b_g_x,
 216                 .y = tc512b_g_y,
 217                 .ndigits = 512 / 64,
 218         },
 219         .p = tc512b_p,
 220         .n = tc512b_n,
 221         .a = tc512b_a,
 222         .b = tc512b_b
 223 };
 224
 225 #endif