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| static public void Encrypt(string cheminSource, string cheminDestination)
{
byte[] bytes;
using (FileStream stream = File.OpenRead(cheminSource))
{
bytes = new byte[stream.Length];
stream.Read(bytes, 0, (int)stream.Length);
stream.Close();
}
using (FileStream stream = File.OpenWrite(cheminDestination))
{
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] -= 1; // Algorithme tout simple ici
stream.WriteByte(bytes[i]);
}
stream.Close();
}
}
static public void Decrypt(string cheminSource, string cheminDestination)
{
byte[] bytes;
using (FileStream stream = File.OpenRead(cheminSource))
{
bytes = new byte[stream.Length];
stream.Read(bytes, 0, (int)stream.Length);
stream.Close();
}
using (FileStream stream = File.OpenWrite(cheminDestination))
{
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] += 1; // Algorithme tout simple ici
stream.WriteByte(bytes[i]);
}
stream.Close();
}
} |
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