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 226