Christian Heimes | 4a0270d | 2012-10-06 02:23:36 +0200 | [diff] [blame] | 1 | /* |
| 2 | The Keccak sponge function, designed by Guido Bertoni, Joan Daemen, |
| 3 | Michaƫl Peeters and Gilles Van Assche. For more information, feedback or |
| 4 | questions, please refer to our website: http://keccak.noekeon.org/ |
| 5 | |
| 6 | Implementation by the designers, |
| 7 | hereby denoted as "the implementer". |
| 8 | |
| 9 | To the extent possible under law, the implementer has waived all copyright |
| 10 | and related or neighboring rights to the source code in this file. |
| 11 | http://creativecommons.org/publicdomain/zero/1.0/ |
| 12 | */ |
| 13 | |
| 14 | #if (Unrolling == 24) |
| 15 | #define rounds \ |
| 16 | prepareTheta \ |
| 17 | thetaRhoPiChiIotaPrepareTheta( 0, A, E) \ |
| 18 | thetaRhoPiChiIotaPrepareTheta( 1, E, A) \ |
| 19 | thetaRhoPiChiIotaPrepareTheta( 2, A, E) \ |
| 20 | thetaRhoPiChiIotaPrepareTheta( 3, E, A) \ |
| 21 | thetaRhoPiChiIotaPrepareTheta( 4, A, E) \ |
| 22 | thetaRhoPiChiIotaPrepareTheta( 5, E, A) \ |
| 23 | thetaRhoPiChiIotaPrepareTheta( 6, A, E) \ |
| 24 | thetaRhoPiChiIotaPrepareTheta( 7, E, A) \ |
| 25 | thetaRhoPiChiIotaPrepareTheta( 8, A, E) \ |
| 26 | thetaRhoPiChiIotaPrepareTheta( 9, E, A) \ |
| 27 | thetaRhoPiChiIotaPrepareTheta(10, A, E) \ |
| 28 | thetaRhoPiChiIotaPrepareTheta(11, E, A) \ |
| 29 | thetaRhoPiChiIotaPrepareTheta(12, A, E) \ |
| 30 | thetaRhoPiChiIotaPrepareTheta(13, E, A) \ |
| 31 | thetaRhoPiChiIotaPrepareTheta(14, A, E) \ |
| 32 | thetaRhoPiChiIotaPrepareTheta(15, E, A) \ |
| 33 | thetaRhoPiChiIotaPrepareTheta(16, A, E) \ |
| 34 | thetaRhoPiChiIotaPrepareTheta(17, E, A) \ |
| 35 | thetaRhoPiChiIotaPrepareTheta(18, A, E) \ |
| 36 | thetaRhoPiChiIotaPrepareTheta(19, E, A) \ |
| 37 | thetaRhoPiChiIotaPrepareTheta(20, A, E) \ |
| 38 | thetaRhoPiChiIotaPrepareTheta(21, E, A) \ |
| 39 | thetaRhoPiChiIotaPrepareTheta(22, A, E) \ |
| 40 | thetaRhoPiChiIota(23, E, A) \ |
| 41 | copyToState(state, A) |
| 42 | #elif (Unrolling == 12) |
| 43 | #define rounds \ |
| 44 | prepareTheta \ |
| 45 | for(i=0; i<24; i+=12) { \ |
| 46 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 47 | thetaRhoPiChiIotaPrepareTheta(i+ 1, E, A) \ |
| 48 | thetaRhoPiChiIotaPrepareTheta(i+ 2, A, E) \ |
| 49 | thetaRhoPiChiIotaPrepareTheta(i+ 3, E, A) \ |
| 50 | thetaRhoPiChiIotaPrepareTheta(i+ 4, A, E) \ |
| 51 | thetaRhoPiChiIotaPrepareTheta(i+ 5, E, A) \ |
| 52 | thetaRhoPiChiIotaPrepareTheta(i+ 6, A, E) \ |
| 53 | thetaRhoPiChiIotaPrepareTheta(i+ 7, E, A) \ |
| 54 | thetaRhoPiChiIotaPrepareTheta(i+ 8, A, E) \ |
| 55 | thetaRhoPiChiIotaPrepareTheta(i+ 9, E, A) \ |
| 56 | thetaRhoPiChiIotaPrepareTheta(i+10, A, E) \ |
| 57 | thetaRhoPiChiIotaPrepareTheta(i+11, E, A) \ |
| 58 | } \ |
| 59 | copyToState(state, A) |
| 60 | #elif (Unrolling == 8) |
| 61 | #define rounds \ |
| 62 | prepareTheta \ |
| 63 | for(i=0; i<24; i+=8) { \ |
| 64 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 65 | thetaRhoPiChiIotaPrepareTheta(i+1, E, A) \ |
| 66 | thetaRhoPiChiIotaPrepareTheta(i+2, A, E) \ |
| 67 | thetaRhoPiChiIotaPrepareTheta(i+3, E, A) \ |
| 68 | thetaRhoPiChiIotaPrepareTheta(i+4, A, E) \ |
| 69 | thetaRhoPiChiIotaPrepareTheta(i+5, E, A) \ |
| 70 | thetaRhoPiChiIotaPrepareTheta(i+6, A, E) \ |
| 71 | thetaRhoPiChiIotaPrepareTheta(i+7, E, A) \ |
| 72 | } \ |
| 73 | copyToState(state, A) |
| 74 | #elif (Unrolling == 6) |
| 75 | #define rounds \ |
| 76 | prepareTheta \ |
| 77 | for(i=0; i<24; i+=6) { \ |
| 78 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 79 | thetaRhoPiChiIotaPrepareTheta(i+1, E, A) \ |
| 80 | thetaRhoPiChiIotaPrepareTheta(i+2, A, E) \ |
| 81 | thetaRhoPiChiIotaPrepareTheta(i+3, E, A) \ |
| 82 | thetaRhoPiChiIotaPrepareTheta(i+4, A, E) \ |
| 83 | thetaRhoPiChiIotaPrepareTheta(i+5, E, A) \ |
| 84 | } \ |
| 85 | copyToState(state, A) |
| 86 | #elif (Unrolling == 4) |
| 87 | #define rounds \ |
| 88 | prepareTheta \ |
| 89 | for(i=0; i<24; i+=4) { \ |
| 90 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 91 | thetaRhoPiChiIotaPrepareTheta(i+1, E, A) \ |
| 92 | thetaRhoPiChiIotaPrepareTheta(i+2, A, E) \ |
| 93 | thetaRhoPiChiIotaPrepareTheta(i+3, E, A) \ |
| 94 | } \ |
| 95 | copyToState(state, A) |
| 96 | #elif (Unrolling == 3) |
| 97 | #define rounds \ |
| 98 | prepareTheta \ |
| 99 | for(i=0; i<24; i+=3) { \ |
| 100 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 101 | thetaRhoPiChiIotaPrepareTheta(i+1, E, A) \ |
| 102 | thetaRhoPiChiIotaPrepareTheta(i+2, A, E) \ |
| 103 | copyStateVariables(A, E) \ |
| 104 | } \ |
| 105 | copyToState(state, A) |
| 106 | #elif (Unrolling == 2) |
| 107 | #define rounds \ |
| 108 | prepareTheta \ |
| 109 | for(i=0; i<24; i+=2) { \ |
| 110 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 111 | thetaRhoPiChiIotaPrepareTheta(i+1, E, A) \ |
| 112 | } \ |
| 113 | copyToState(state, A) |
| 114 | #elif (Unrolling == 1) |
| 115 | #define rounds \ |
| 116 | prepareTheta \ |
| 117 | for(i=0; i<24; i++) { \ |
| 118 | thetaRhoPiChiIotaPrepareTheta(i , A, E) \ |
| 119 | copyStateVariables(A, E) \ |
| 120 | } \ |
| 121 | copyToState(state, A) |
| 122 | #else |
| 123 | #error "Unrolling is not correctly specified!" |
| 124 | #endif |