1 /* 2 * Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef PKA_EC_EDW_GLOB_REGS_DEF_H 8 #define PKA_EC_EDW_GLOB_REGS_DEF_H 9 10 /*! Note: Don't change registers ID-s ! */ 11 12 /*! Define global PKA registers ID-s used in EC Edwards operations */ 13 14 /*--------------------------*/ 15 /* Common EC Edw. registers */ 16 /*--------------------------*/ 17 #define EDW_REG_N PKA_REG_N /* EC mod. */ 18 #define EDW_REG_NP PKA_REG_NP /* EC Barr.tag */ 19 #define EDW_REG_T3 2 /* 4 temp regs. */ 20 #define EDW_REG_T4 3 21 #define EDW_REG_T5 4 22 #define EDW_REG_T6 5 23 #define EDW_REG_N_4 6 /* from domain */ 24 #define EDW_REG_D2 7 /* from domain */ 25 26 /*---------------------------------------------*/ 27 /* EC Edw. registers for ScalarMultBase */ 28 /* and Signature functions */ 29 /*---------------------------------------------*/ 30 #define EDW_REG_XS 8 /* out point s */ 31 #define EDW_REG_YS 9 32 #define EDW_REG_ZS 10 33 #define EDW_REG_TS 11 34 #define EDW_REG_SG4 12 /* precalc. point g4 */ 35 #define EDW_REG_DG4 13 36 #define EDW_REG_PG4 14 37 #define EDW_REG_MPG4 15 38 /* for special scal.Mult only */ 39 #define EDW_REG_SG8 16 /* precalc. point g8 */ 40 #define EDW_REG_DG8 17 41 #define EDW_REG_PG8 18 42 #define EDW_REG_MPG8 19 43 #define EDW_REG_SG16 20 /* precalc. point g16 */ 44 #define EDW_REG_DG16 21 45 #define EDW_REG_PG16 22 46 #define EDW_REG_MPG16 23 47 48 /* Registers, used in EC EDW Sign and Verify */ 49 #define EDW_REG_EPH_PRIV EDW_REG_T3 50 #define EDW_REG_INTEGR EDW_REG_T4 51 #define EDW_REG_USER_PRIV EDW_REG_T5 52 #define EDW_REG_SIGN EDW_REG_T6 53 // #define EDW_REG_TMP EDW_REG_N_4 54 55 /*------------------------------*/ 56 /* EC Edw. common registers for */ 57 /* ScalarMultBase functions */ 58 /*------------------------------*/ 59 #define EDW_REG_SG EDW_REG_SG8 /* pont g */ 60 #define EDW_REG_DG EDW_REG_DG8 61 #define EDW_REG_PG EDW_REG_PG8 62 #define EDW_REG_MPG EDW_REG_MPG8 63 #define EDW_REG_SG2 EDW_REG_SG16 /* pont g2 */ 64 #define EDW_REG_DG2 EDW_REG_DG16 65 #define EDW_REG_PG2 EDW_REG_PG16 66 #define EDW_REG_MPG2 EDW_REG_MPG16 67 68 /* for modified points g2, g4: x,y,z=1,t */ 69 #define EDW_REG_XG2 EDW_REG_T3 70 #define EDW_REG_YG2 EDW_REG_T4 71 #define EDW_REG_TG2 EDW_REG_T5 72 #define EDW_REG_XG4 EDW_REG_T6 73 #define EDW_REG_YG4 28 74 #define EDW_REG_TG4 29 75 76 /*-------------------------------------------------*/ 77 /* EC Edw. registers for TwoScalarMultAdd function */ 78 /*-------------------------------------------------*/ 79 /*aff. input point P (xp,yp)*/ 80 #define EDW_REG_XP 8 81 #define EDW_REG_YP 9 82 /*extended point P: sp,dp,pp*/ 83 #define EDW_REG_SP 10 84 #define EDW_REG_DP 11 85 #define EDW_REG_PP 12 86 87 /*extended result point R (xr,yr,zr,tr)*/ 88 #define EDW_REG_XR 13 89 #define EDW_REG_YR 14 90 #define EDW_REG_ZR 15 91 #define EDW_REG_TR 16 92 /*modified form of base point G */ 93 #define EDW_REG_XG 17 94 #define EDW_REG_YG 18 95 #define EDW_REG_ZG 19 96 #define EDW_REG_TG 20 97 /*precalculated form of base point G */ 98 #define EDW_REG_SG1 21 99 #define EDW_REG_DG1 22 100 #define EDW_REG_PG1 23 101 /* modified point PG=P+G*/ 102 #define EDW_REG_XPG 24 /*EDW_REG_ZG */ 103 #define EDW_REG_YPG 25 /*EDW_REG_TG*/ 104 #define EDW_REG_ZPG 26 /*EDW_REG_XG*/ 105 #define EDW_REG_TPG 27 /*EDW_REG_TG*/ 106 107 /*Registers, used in decompression */ 108 #define EDW_REG_T 28 /*temp reg.*/ 109 /* parameters from domain */ 110 #define EDW_REG_Q58 EDW_REG_XPG 111 #define EDW_REG_SQRTM1 EDW_REG_YPG 112 #define EDW_REG_D EDW_REG_ZPG 113 114 115 // #define EC_EDW_PKA_REGS_USED 28 /* besides 2 PKA temp regs. 30,31 */ 116 #endif 117 118 // I n, np, t3, t4, t5, t6, n_4, d2, q58, sqrtm1; // 10 regs 119 //I xg,yg,zg,tg, xg32,yg32,zg32,tg32; // extended coordinates of G and 32G 120 //I sg, dg, pg, mpg; I sg4, dg4, pg4, mpg4; I sg8, dg8, pg8, mpg8; I sg16, dg16, pg16, mpg16; // precalculated coordinates: y+x, y-x, 2xy, -2xy of G, 4G, 8G, 16G 121 //void hwsmulg(I xs, I ys, I k) 122 123
