public void Krabouille_stream_on_file(string pwd, int bufferSize)
{
string original = ThisFilePath();
string krabouilled = $"{original}.{pwd}.krab";
string readBack = krabouilled + ".txt";
// original => krabouilled (.krab)
using (var o = new FileStream(original, FileMode.Open, FileAccess.Read, FileShare.None))
using (var target = new FileStream(krabouilled, FileMode.Create, FileAccess.Write, FileShare.None))
using (var k = new KrabouilleStream(target, KrabouilleMode.Krabouille, pwd))
{
o.CopyTo(k, bufferSize);
}
File.ReadAllBytes(original).Should().NotBeEquivalentTo(File.ReadAllBytes(krabouilled));
// krabouilled => readBack (.txt)
using (var source = new FileStream(krabouilled, FileMode.Open, FileAccess.Read))
using (var target = new FileStream(readBack, FileMode.Create, FileAccess.Write))
using (var uk = new KrabouilleStream(source, KrabouilleMode.Unkrabouille, pwd))
{
uk.CopyTo(target, bufferSize + 1);
}
File.ReadAllBytes(original).Should().BeEquivalentTo(File.ReadAllBytes(readBack));
}
byte[] Write(byte[] data, string password)
{
using (var m = new MemoryStream())
{
using (var k = new KrabouilleStream(m, KrabouilleMode.Krabouille, password))
{
k.Write(data, 0, data.Length);
k.Flush();
}
return(m.ToArray());
}
}
void DoUnkrabouille(string crypted, string restored, string passPhrase)
{
using (var o = new FileStream(crypted, FileMode.Open, FileAccess.Read))
using (var t = new FileStream(restored, FileMode.Create, FileAccess.Write))
using (var uk = new KrabouilleStream(o, passPhrase, KrabouilleMode.Unkrabouille))
{
byte[] buffer = new byte[4096];
int len;
do
{
len = uk.Read(buffer, 0, buffer.Length);
t.Write(buffer, 0, len);
}while (len == buffer.Length);
}
}
void DoKrabouille(string origin, string crypted, string passPhrase)
{
using (var o = new FileStream(origin, FileMode.Open, FileAccess.Read))
using (var t = new FileStream(crypted, FileMode.Create, FileAccess.Write))
using (var k = new KrabouilleStream(t, passPhrase, KrabouilleMode.Krabouille))
{
byte[] buffer = new byte[4096];
int len;
do
{
len = o.Read(buffer, 0, buffer.Length);
k.Write(buffer, 0, len);
}while (len == buffer.Length);
}
}
byte[] Read(byte[] data, string password)
{
List <byte> result = new List <byte>();
using (var m = new MemoryStream(data))
{
byte[] buffer = new byte[128];
using (var uk = new KrabouilleStream(m, KrabouilleMode.Unkrabouille, password))
{
int nbRead;
while ((nbRead = uk.Read(buffer, 0, buffer.Length)) > 0)
{
for (int i = 0; i < nbRead; ++i)
{
result.Add(buffer[i]);
}
}
}
return(result.ToArray());
}
}
