public bool encryptSym(string source, string destination)
{
AesEncryptie symEncryptor = new AesEncryptie();
inputHasher = new hasher();
outputHasher = new hasher();
FileInfo info = new FileInfo(source);
input = new FileIO(source);
output = new FileIO(destination);
try {
writeBegin(info.Name, program_encryptor.run_encrypt(symEncryptor.KEY), program_encryptor.run_encrypt(symEncryptor.IV));
}
catch (FileNotFoundException ex)
{
throw new Exceptions("File not found:" + ex.FileName, "Encryptie");
}
catch (FileLoadException ex)
{
throw new Exceptions("Geen toegangsrechten:" + ex.FileName, "Encryptie");
}
int count;
byte[] hulp;
input.OpenRead();
while ((count = input.Read_part()) > 0)
{
inputHasher.Add_part(input.buffer);
hulp = symEncryptor.encrypt(input.buffer);
outputHasher.Add_part(hulp);
output.Write_line(hulp);
}
symEncryptor.end_encryption();
input.close_file();
writeEnd();
output.Writer_close();
return(true);
}
public bool decryptSym(string source, string destination)
{
AesEncryptie symEncryptor;
inputHasher = new hasher();
outputHasher = new hasher();
string filename = "";
byte[] key = new byte[0];
byte[] IV = new byte[0];
input = new FileIO(source);
try
{
ReadBegin(ref filename, ref key, ref IV);
}
catch (Exceptions ex)
{
throw new Exceptions("Wegschrijven lukte niet:" + ex.Message, "Decryptie");
}
try
{
FileInfo info = new FileInfo(filename);
FileInfo infoDestination = new FileInfo(destination);
if (!infoDestination.Extension.Equals(info.Extension))
{
output = new FileIO(destination, info.Extension);
}
else
{
output = new FileIO(destination);
}
symEncryptor = new AesEncryptie(program_encryptor.run_decrypt(IV), program_encryptor.run_decrypt(key));
byte[] hulp;
output.OpenWrite();
while (input.readCode() > 0)
{
inputHasher.Add_part(input.buffer);
hulp = symEncryptor.encrypt(input.buffer);
outputHasher.Add_part(hulp);
output.Write_part(hulp);
}
symEncryptor.end_encryption();
Check_Hashes();
}
catch (Exceptions ex)
{
throw new Exceptions("Er is geknoeit met de input files:" + ex.Message, "Decryptie");
}
output.close_file();
return(true);
}