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-rw-r--r--IOFileClass/FileManIOFile.cpp68
-rw-r--r--IOFileClass/FileManIOFile.hpp69
-rw-r--r--main.cpp5
3 files changed, 91 insertions, 51 deletions
diff --git a/IOFileClass/FileManIOFile.cpp b/IOFileClass/FileManIOFile.cpp
index bee2ebe..ea49201 100644
--- a/IOFileClass/FileManIOFile.cpp
+++ b/IOFileClass/FileManIOFile.cpp
@@ -10,36 +10,38 @@
#include "FileManIOFile.hpp"
-#include <iomanip> // This might be necessary
+//Constructor with filename
FileManIOFile::FileManIOFile(std::string filename){
this->filename=filename;
this->readable=false;
this->data="";
this->key;
}
+
+//Destructor
FileManIOFile::~FileManIOFile(){
}
-bool FileManIOFile::isReadable(){
- return this->readable;
-}
-
+//Read the filename with a key
void FileManIOFile::read(std::string key){
- AESCrypt aes;
- HASHCrypt hash;
-
+ //create file object
std::ifstream file;
+
+ //Clear data
this->data.clear();
+ //Open file
file.open (this->filename, std::ios::in | std::ios::binary);
+ //Get MD5 of decrypted data
byte fileMD5[16];
file.read((char*) fileMD5, sizeof(fileMD5));
+ //Read all data
char car;
file.read(&car, sizeof(car));
@@ -49,20 +51,25 @@ void FileManIOFile::read(std::string key){
}
- this->data=aes.decrypt(key, this->data);
+ //Decrypt data
+ this->data=this->aes.decrypt(key, this->data);
+ //Get current MD5 of decrypted data
byte currentMD5[16];
- hash.getMD5_128(this->data, currentMD5, sizeof(currentMD5));
+ this->hash.getMD5_128(this->data, currentMD5, sizeof(currentMD5));
- if(hash.compareDigest(fileMD5, currentMD5, sizeof(currentMD5))){
+ //Compare the 2 MD5 to find if file is fully decrypted
+ if(this->hash.compareDigest(fileMD5, currentMD5, sizeof(currentMD5))){
+ //Set readable
this->readable=true;
- hash.getSHA_256(key, this->key, 32);
+ //Save the key
+ this->hash.getSHA_256(key, this->key, 32);
}
else{
this->readable=false;
}
-
+ //Close file
file.close();
@@ -70,58 +77,71 @@ void FileManIOFile::read(std::string key){
-
+//Write file with key
void FileManIOFile::write(std::string key,std::string data){
- AESCrypt aes;
std::string dataEncrypted;
- dataEncrypted=aes.encrypt(key, data);
+ dataEncrypted=this->aes.encrypt(key, data);
this->writeRoutine(data, dataEncrypted);
}
+//Write file without key
void FileManIOFile::write(std::string data){
if(not(this->readable)){
std::cout << "Can't write data without key (read it before) !" << std::endl;
std::exit(EXIT_FAILURE);
}
- AESCrypt aes;
+
std::string dataEncrypted;
- dataEncrypted=aes.encrypt(this->key, data);
+ dataEncrypted=this->aes.encrypt(this->key, data);
this->writeRoutine(data, dataEncrypted);
}
+
+//Get readable attribute
+bool FileManIOFile::isReadable(){
+ return this->readable;
+}
+
+
+
+//Write file
void FileManIOFile::writeRoutine(std::string data, std::string dataEncrypted){
- HASHCrypt hash;
+ //Save MD5 of decrypted data
byte digest[16];
- hash.getMD5_128(data, digest, sizeof(digest));
-
+ this->hash.getMD5_128(data, digest, sizeof(digest));
+ //Create file instance
std::ofstream file;
+
+ //Open it
file.open(this->filename, std::ios::out | std::ios::binary);
+ //Write MD5 on 16 first bytes
file.write((char *) digest,sizeof(digest));
-
+ //Write data
file.write(dataEncrypted.c_str(), dataEncrypted.size());
-
-
+ //Close file
file.close();
+ //Save data to attribute
this->data=data;
}
+//Get data
std::string FileManIOFile::getData(){
return this->data;
}
diff --git a/IOFileClass/FileManIOFile.hpp b/IOFileClass/FileManIOFile.hpp
index 7013b27..221cf13 100644
--- a/IOFileClass/FileManIOFile.hpp
+++ b/IOFileClass/FileManIOFile.hpp
@@ -12,40 +12,51 @@
#ifndef __FileManIOFile__
#define __FileManIOFile__
-//--- std -----
+
+//----- std -----
#include <iostream>
#include <string>
#include <fstream>
+
//----- class -----
#include "HASHCrypt.hpp"
#include "AESCrypt.hpp"
+
+
/**
* @class FileManIOFile FileManIOFile.hpp "/CryptClass/FileManIOFile.hpp"
- * @brief Class for quick open and close encrypted file.
+ * @brief Class for quick open and close encrypted files.
* @author manzerbredes
*
* -----File organisation-----
*
- * 16 first bytes : md5 of decrypted file
- * rest of the file : data encrypted (ASE for now)
+ * 16 first bytes : md5 of decrypted data
+ * Rest of the file : data encrypted (ASE for now)
*
+ * \bug Need check if file exist and can be opened
*/
class FileManIOFile {
public:
+
+ //Constructor
FileManIOFile(std::string filename);
+
+ //Destructor
~FileManIOFile();
+
/**
* @brief Read encrypted file.
*
* @param key : key to encrypt data
*
* Read data from "filename" attribute.
- * If file fully decrypted, readable var switch to true.
+ * If file fully decrypted, readable var switch to true,
+ * and key saved in key attribute (before been crypted with SHA-256 algorithm).
*
*/
void read(std::string key);
@@ -57,9 +68,9 @@ class FileManIOFile {
* @param key : key to encrypt data
* @param data : data to write
*
- * Write the file with or without key
+ * Write the file with or without key.
* To write data without key, you need to read it before (to save the key
- * in attribute key;
+ * in attribute key).
*
*/
void write(std::string key, std::string data);
@@ -67,22 +78,10 @@ class FileManIOFile {
/**
- * @brief Write data in encrypted file.
- *
- * @param data : data to write (for MD5)
- * @param dataEncrypted : data to write
- *
- * Write encryptedData to filename
- *
- */
- void writeRoutine(std::string data, std::string dataEncrypted);
-
-
-
-
- /**
* @brief True if file fully decrypted.
*
+ * @return readable attribute
+ *
* Return "readable" attribute.
*
*/
@@ -92,26 +91,42 @@ class FileManIOFile {
/**
* @brief Get data attribute.
*
- * Return "data" attribute.
+ * @return data attribute.
*
* **Warning** if data not fully decrypted (readable!=true),
- * data will be unreadable.
+ * data will be unreadable (unparsable).
+ *
*/
std::string getData();
+
private:
- std::string filename; ///< Filename attribute
+ /**
+ * @brief Write data in encrypted file.
+ *
+ * @param data : data to write (for MD5)
+ * @param dataEncrypted : data to write
+ *
+ * Write encryptedData to filename
+ *
+ */
+ void writeRoutine(std::string data, std::string dataEncrypted);
- std::string data; ///< Data attribute
- bool readable; ///< Readable attribute
+ //Attributes:
- byte key[32]; ///< Key in SHA-256
+ AESCrypt aes; ///< AES instance
+ HASHCrypt hash; ///< HASH instance
+ std::string filename; ///< Filename attribute
+ std::string data; ///< Data attribute
+ bool readable; ///< Readable attribute
+
+ byte key[32]; ///< Key in SHA-256
};
diff --git a/main.cpp b/main.cpp
index 2cbc9ef..08aa05d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -33,7 +33,12 @@
*/
int main(int argc, char *argv[]){
+ /*
+ FileManIOFile fichier("Doxygen/bob.bin");
+ fichier.read("loic");
+
+ std::cout << fichier.getData();*/
std::string xml="<?xml version=\"1.0\" standalone=\"yes\" ?>\n\
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-15 22:31:23 +0000