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Update polybius

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This commit is contained in:
geoffrey 2024-10-01 20:01:09 +02:00
parent 3a2e110ad2
commit e3cde4be54
2 changed files with 15 additions and 12 deletions
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10
src/main.c
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@ -102,6 +102,7 @@ int main(int argc, char *argv[]) {
// Polybius square // Polybius square
else if(strcmp(argv[1], "-s") == 0){ else if(strcmp(argv[1], "-s") == 0){
char key[26]; char key[26];
int res;
printf("Your key: "); printf("Your key: ");
scanf("%s", key); scanf("%s", key);
@ -112,9 +113,12 @@ int main(int argc, char *argv[]) {
} }
if(strcmp(hook, "crypt") == 0) if(strcmp(hook, "crypt") == 0)
cryptPolybius(fileSrc, fileDst, key); res = cryptPolybius(fileSrc, fileDst, key);
else else
decryptPolybius(fileSrc, fileDst, key); res = decryptPolybius(fileSrc, fileDst, key);
if (res != 0)
printf("Failed to crypt/decrypt the file\n");
} }
/* Display error */ /* Display error */
@ -125,7 +129,5 @@ int main(int argc, char *argv[]) {
*/ */
free(fileDst); free(fileDst);
//free(buffer);
//free(data);
return 0; return 0;
} }

17
src/polybius.c
View File

@ -42,8 +42,10 @@ int cryptPolybius(const char *filenameSrc, const char *filenameDst, const char *
} }
} }
} }
if (c == '\n') if (c == '\n' || c == ' '){
fputc('\n', fDst); fputc(c, fDst);
fputc(0, fDst); // For having a couple of number
}
} }
size = 0; size = 0;
@ -62,7 +64,6 @@ int decryptPolybius(const char *filenameSrc, const char *filenameDst, const char
char data[BUFFER_SIZE]; char data[BUFFER_SIZE];
char dataEncrypted[BUFFER_SIZE]; char dataEncrypted[BUFFER_SIZE];
int size = 0, end = 0, i = 0, j = 0; int size = 0, end = 0, i = 0, j = 0;
char c = 0;
generateSquarePolybius(polybius, key); generateSquarePolybius(polybius, key);
@ -85,17 +86,17 @@ int decryptPolybius(const char *filenameSrc, const char *filenameDst, const char
/********* Decryption **********/ /********* Decryption **********/
for (i = 0; i < size; i += 2){ for (i = 0; i < size; i += 2){
if (data[i] >= 0 && data[i] <= POLYBIUS_SIZE) { if (data[i] >= 48 && data[i] <= 53) {
int c1 = data[i] - '0'; int c1 = data[i] - '0';
int c2 = data[i+1] - '0'; int c2 = data[i+1] - '0';
char c = polybius[c1][c2]; char c = polybius[c1][c2];
//printf("%d%d ", c1, c2);
//printf("%d ", c1);
printf("%c", c); printf("%c", c);
//printf("%c", data[i]); fputc(c, fDst);
} }
else else{
printf("%c", data[i]); printf("%c", data[i]);
fputc(data[i], fDst);
}
} }
size = 0; size = 0;