.gitignore

@@ -1,5 +0,0 @@
-**.txt.crypt
-**.txt.decrypt
-**.txt.**
-**.txt
-main

cesar.c

@@ -1,4 +1,4 @@
-#include "caesar.h"
+#include "cesar.h"
 
 /*
 	s -> path source
@@ -6,18 +6,17 @@
 	key -> key of encryption
 	This function encrypt data
 */
-int cryptCaesar(const char *s, const int key, const int countCharact, char *bufferDst) {
+int cryptCesar(const char *s, const int key, const int countCharact, char *bufferDst) {
 	char *buffer;
 	int i;
 	int error = countCharact;
-	char c = 0;
 
 	if(error == -1) return error;
 
 	/* Allocation dynamique */
 	buffer = malloc(countCharact + 1); /* + 1 for '\0' */
 
-	/* Copy the data of file into the buffer[] */
+	/* Copy the data of file in the buffer[] */
 	error = copyFile(s, buffer);
 	if(error != 0) return error;
 
@@ -26,13 +25,17 @@ int cryptCaesar(const char *s, const int key, const int countCharact, char *buff
 		int val = 0;
 		/* For characters of A to Z */
 		if(buffer[i] >= 'A' && buffer[i] <= 'Z') {
-			c = buffer[i] - 'A';
-			val = ((c + key) % 26) + 'A';
+			if(buffer[i] + key > 'Z')
+				val = ((buffer[i] - 'A')-26) + key + 'A';
+			else
+				val = (buffer[i] - 'A') + key + 'A';
 		}
 		/* For characters of 'a' to 'z' */
 		else if(buffer[i] >= 'a' && buffer[i] <= 'z') {
-			c = buffer[i] - 'a';
-				val = ((c + key) % 26) + 'A';
+			if(buffer[i] + key > 'z')
+				val = ((buffer[i] - 'a')- 26) + key + 'A';
+			else
+				val = (buffer[i] - 'a') + key + 'A';
 		}
 		/* For others characters */
 		else val = buffer[i];
@@ -53,7 +56,7 @@ int cryptCaesar(const char *s, const int key, const int countCharact, char *buff
 	key -> key of decryption
 	This function decryption by Cesar
 */
-int decryptCaesar(const char *s, const int key, const int countCharact, char *bufferDst) {
+int decryptCesar(const char *s, const int key, const int countCharact, char *bufferDst) {
 	int error = countCharact;
 	char *buffer;
 	int i;
@@ -64,7 +67,7 @@ int decryptCaesar(const char *s, const int key, const int countCharact, char *bu
 	/* Allocation dynamique */
 	buffer = malloc(countCharact + 1); /* +1 for '\0' */
 
-	/* Copy the data from file into buffer */
+	/* Copy the data from file to buffer */
 	error = copyFile(s, buffer);
 	if(error != 0) return error;
 

cesar.h

@@ -0,0 +1,13 @@
+#ifndef H_INFLATE
+#define H_INFLATE
+
+#define SIZE_MAX_FILE 8192
+
+#include "functions.h"
+
+/* Functions */
+void inflate();
+int cryptCesar(const char *s, const int key, const int countCharact, char *bufferDst);
+int decryptCesar(const char *s, const int key, const int countCharact, char *bufferDst);
+
+#endif

exec.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-gcc -W src/main.c src/functions.c src/caesar.c src/vigenere.c -o output/main && ./output/main $1 $2 $3 $4
+gcc -W main.c functions.c cesar.c vigenere.c -o main && ./main $1 $2 $3 $4

functions.c

@@ -3,9 +3,9 @@
 void usage() {
 	printf("Usage: [options] [crypt|decrypt] [file]\n");
 	printf("Options:\n");
-	printf("\t-c: Caesar cipher\n");
-	printf("\t-v: Vigenere cipher\n");
-	printf("\t-t: Transposition cipher\n");
+	printf("\t-c: chiffrement de Cesar\n");
+	printf("\t-v: chiffrement de Vigenere\n");
+	printf("\t-t: chiffrement par transposition\n");
 }
 int fileExist(const char *path) {
 	FILE *f=NULL;

main.c

@@ -1,5 +1,5 @@
 #include "functions.h"
-#include "caesar.h"
+#include "cesar.h"
 #include "vigenere.h"
 
 int main(int argc, char *argv[]) {
@@ -71,30 +71,28 @@ int main(int argc, char *argv[]) {
 	buffer = malloc(sizeof(int) * numberCharacters);
 	memset(buffer, 0, sizeof(int) * numberCharacters);
 
-  // Caesar cipher
 	if(strcmp(argv[1], "-c") == 0){
 		// Get key
 		int key;
 
 		do{
-			printf("Your key (between 1 and 26): ");
+			printf("Votre cle de chiffrement (entre 1 et 26): ");
 			scanf("%d",&key);
 		}while(key < 1 || key > 26);
 
 		if(strcmp(hook, "crypt") == 0)
-			error = cryptCaesar(fileSrc, key, numberCharacters, buffer);
+			error = cryptCesar(argv[3], key, numberCharacters, buffer);
 		if(strcmp(hook, "decrypt") == 0)
-			error = decryptCaesar(fileSrc, key, numberCharacters, buffer);
+			error = decryptCesar(argv[3], key, numberCharacters, buffer);
+
 	}
 	else if(strcmp(argv[1], "-v") == 0){
 		// Get key
 		char *key = malloc(8);
-		printf("Your key: ");
-		scanf("%s", key);
 
 		
 		if(strcmp(hook, "crypt") == 0)
-			error = cryptVigenere(key, fileSrc, numberCharacters, buffer);
+			error = cryptVigenere(key, argv[3], buffer);
 
 		free(key);
 	}

src/caesar.h

@@ -1,12 +0,0 @@
-#ifndef H_INFLATE
-#define H_INFLATE
-
-#define SIZE_MAX_FILE 8192
-
-#include "functions.h"
-
-/* Functions */
-int cryptCaesar(const char *s, const int key, const int countCharact, char *bufferDst);
-int decryptCaesar(const char *s, const int key, const int countCharact, char *bufferDst);
-
-#endif

src/vigenere.c

@@ -1,77 +0,0 @@
-#include "vigenere.h"
-
-int cryptVigenere(const char *key, const char *fileSrc, const int numberCharacters, char *bufferDst) {
-	int error = 0;
-	char matrice[SIZE_MATRICE_VIGENERE][SIZE_MATRICE_VIGENERE];
-	char *data = malloc(sizeof(char) * numberCharacters);
-	char *dataVigenere = NULL;
-	char c = 0;
-	int pos = 0;
-	size_t i, j = 0;
-	size_t keyLength = strlen(key);
-
-	// Init the Vigenere matrice
-	matriceVigenere(matrice);
-
-	if (data == NULL) return -1;
-	memset(data, 0, numberCharacters);
-
-	error = copyFile(fileSrc, data);
-	
-	dataVigenere = malloc(strlen(data));
-	if (dataVigenere == NULL) return -1;
-
-	memset(dataVigenere, 0, numberCharacters);
-
-	// Fill the dataVigenere with the key
-	for (i = 0; i < strlen(data); i++){
-		if (data[i] == '\n' || data[i] == ' ')
-			dataVigenere[i] = data[i];
-		else
-			dataVigenere[i] = key[j++];
-
-		if (j == keyLength)
-			j = 0;
-	}
-	dataVigenere[pos - 1] = '\0';
-
-	printf("%s\n", data);
-	printf("%s\n", dataVigenere);
-	/*do {
-		c = data[pos++];
-		printf("%c", c);
-		if (c == '\n') {}
-	}while (c != '\0');*/
-
-	/* Encrypt the data */
-	/*for (i = 0; i < strlen(data); i++) {
-		printf("%c", matrice[data[i]][dataVigenere[i]]);	
-	}*/
-
-	free(dataVigenere);
-	free(data);
-	return error;
-}
-void matriceVigenere(char matrice[][SIZE_MATRICE_VIGENERE]) {
-	int i, j = 0;
-	char pos, pos2 = 'A';
-
-	//for (i = 0; i < SIZE_MATRICE_VIGENERE; i++)
-	//	matrice[0][i] = 'A' + i;
-
-	for (i = 0; i < SIZE_MATRICE_VIGENERE; i++) {
-		for (j = 0; j < SIZE_MATRICE_VIGENERE; j++) {
-			if (pos > 'Z')
-				matrice[i][j] = pos2++;
-			else
-				matrice[i][j] = pos++;
-		}
-		pos = 'B' + i;
-		pos2 = 'A';
-	}
-	for (i = 0; i < SIZE_MATRICE_VIGENERE; i++) {
-		for (j = 0; j < SIZE_MATRICE_VIGENERE; j++) 
-			printf("%c ", matrice[i][j]);
-		printf("f\n");
-	}
-}

src/vigenere.h

@@ -1,10 +0,0 @@
-#ifndef H_VIGENERE
-#define H_VIGENERE
-
-#include "functions.h"
-#define SIZE_MATRICE_VIGENERE 26
-
-int cryptVigenere(const char *key, const char *fileSrc, const int numberCharacters, char *bufferDst);
-void matriceVigenere(char matrice[][SIZE_MATRICE_VIGENERE]);
-
-#endif

test.txt

@@ -0,0 +1,2 @@
+Hello world!
+Je suis un message en clair !!

test.txt.crypt.decrypt

@@ -0,0 +1,2 @@
+HELLO WORLD!
+JE SUIS UN MESSAGE EN CLAIR !!

vigenere.c

@@ -0,0 +1,9 @@
+#include "vigenere.h"
+
+int cryptVigenere(const char *key, const char *data, char *bufferDst) {
+	int error = 0;
+
+	printf("Vigenere\n");
+
+	return error;
+}

vigenere.h

@@ -0,0 +1,8 @@
+#ifndef H_VIGENERE
+#define H_VIGENERE
+
+#include "functions.h"
+
+int cryptVigenere(const char *key, const char *data, char *bufferDst);
+
+#endif