DH-Keccak/assets/KremKeccak/displayIntermediateValues.c

   1 /*
   2 The Keccak sponge function, designed by Guido Bertoni, Joan Daemen,
   3 Michaël 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 #include <stdio.h>
  15 #include "displayIntermediateValues.h"
  16 #include "KeccakNISTInterface.h"
  17
  18 FILE *intermediateValueFile = 0;
  19 int displayLevel = 0;
  20
  21 void displaySetIntermediateValueFile(FILE *f)
  22 {
  23     intermediateValueFile = f;
  24 }
  25
  26 void displaySetLevel(int level)
  27 {
  28     displayLevel = level;
  29 }
  30
  31 void displayBytes(int level, const char *text, const unsigned char *bytes, unsigned int size)
  32 {
  33     unsigned int i;
  34
  35     if ((intermediateValueFile) && (level <= displayLevel)) {
  36         fprintf(intermediateValueFile, "%s:\n", text);
  37         for(i=0; i<size; i++)
  38             fprintf(intermediateValueFile, "%02X ", bytes[i]);
  39         fprintf(intermediateValueFile, "\n");
  40         fprintf(intermediateValueFile, "\n");
  41     }
  42 }
  43
  44 void displayBits(int level, const char *text, const unsigned char *data, unsigned int size, int MSBfirst)
  45 {
  46     unsigned int i, iByte, iBit;
  47
  48     if ((intermediateValueFile) && (level <= displayLevel)) {
  49         fprintf(intermediateValueFile, "%s:\n", text);
  50         for(i=0; i<size; i++) {
  51             iByte = i/8;
  52             iBit = i%8;
  53             if (MSBfirst)
  54                 fprintf(intermediateValueFile, "%d ", ((data[iByte] << iBit) & 0x80) != 0);
  55             else
  56                 fprintf(intermediateValueFile, "%d ", ((data[iByte] >> iBit) & 0x01) != 0);
  57         }
  58         fprintf(intermediateValueFile, "\n");
  59         fprintf(intermediateValueFile, "\n");
  60     }
  61 }
  62
  63 void displayStateAsBytes(int level, const char *text, const unsigned char *state)
  64 {
  65     displayBytes(level, text, state, KeccakPermutationSizeInBytes);
  66 }
  67
  68 void displayStateAs32bitWords(int level, const char *text, const unsigned int *state)
  69 {
  70     unsigned int i;
  71
  72     if ((intermediateValueFile) && (level <= displayLevel)) {
  73         fprintf(intermediateValueFile, "%s:\n", text);
  74         for(i=0; i<KeccakPermutationSize/64; i++) {
  75             fprintf(intermediateValueFile, "%08X:%08X", (unsigned int)state[2*i+0], (unsigned int)state[2*i+1]);
  76             if ((i%5) == 4)
  77                 fprintf(intermediateValueFile, "\n");
  78             else
  79                 fprintf(intermediateValueFile, " ");
  80         }
  81     }
  82 }
  83
  84 void displayStateAs64bitWords(int level, const char *text, const unsigned long long int *state)
  85 {
  86     unsigned int i;
  87
  88     if ((intermediateValueFile) && (level <= displayLevel)) {
  89         fprintf(intermediateValueFile, "%s:\n", text);
  90         for(i=0; i<KeccakPermutationSize/64; i++) {
  91             fprintf(intermediateValueFile, "%08X", (unsigned int)(state[i] >> 32));
  92             fprintf(intermediateValueFile, "%08X", (unsigned int)(state[i] & 0xFFFFFFFFULL));
  93             if ((i%5) == 4)
  94                 fprintf(intermediateValueFile, "\n");
  95             else
  96                 fprintf(intermediateValueFile, " ");
  97         }
  98     }
  99 }
 100
 101 void displayRoundNumber(int level, unsigned int i)
 102 {
 103     if ((intermediateValueFile) && (level <= displayLevel)) {
 104         fprintf(intermediateValueFile, "\n");
 105         fprintf(intermediateValueFile, "--- Round %d ---\n", i);
 106         fprintf(intermediateValueFile, "\n");
 107     }
 108 }
 109
 110 void displayText(int level, const char *text)
 111 {
 112     if ((intermediateValueFile) && (level <= displayLevel)) {
 113         fprintf(intermediateValueFile, text);
 114         fprintf(intermediateValueFile, "\n");
 115         fprintf(intermediateValueFile, "\n");
 116     }
 117 }