public void MfKey32_SameNtTwoNonce(uint uid, uint nt, uint nr0, uint nr1, ulong expectedKey)
{
var p64 = Crypto1.PrngSuccessor(nt, 64);
var crypto1 = new Crypto1(expectedKey);
crypto1.Crypto1Word(uid ^ nt);
nr0 ^= crypto1.Crypto1Word(nr0);
var ar0 = p64 ^ crypto1.Crypto1Word();
crypto1 = new Crypto1(expectedKey);
crypto1.Crypto1Word(uid ^ nt);
nr1 ^= crypto1.Crypto1Word(nr1);
var ar1 = p64 ^ crypto1.Crypto1Word();
var key = MfKey.MfKey32(uid, nt, nr0, ar0, nr1, ar1);
Assert.AreEqual(expectedKey, key);
}
private static string KeyWorker(List <MyKey> keys)
{
var results = keys
.GroupBy(k => new { k.UID, k.Sector, k.Block, k.KeyType })
.AsParallel()
.AsOrdered()
.Select(group =>
{
var list = group.Select(k => new Nonce()
{
Nt = k.nt0,
Nr = k.nr0,
Ar = k.ar0
}).ToList();
if (list.Count < 2)
{
return(null);
}
var keyType = (group.Key.KeyType == 0x60) ? "A" : "B";
Debug.WriteLine($"{group.Key.Sector} - {keyType} | {list.Count}");
var key = MfKey.MfKey32(group.Key.UID, list);
if (key != ulong.MaxValue)
{
foreach (var item in group)
{
item.Found = true;
item.key = key;
}
var s = $"[S{group.Key.Sector} / B{group.Key.Block}] Key{keyType} [{key:x12}]";
Debug.WriteLine(s);
return(s);
}
return(null);
})
.Where(r => r != null)
.ToList();
results.Add(string.Empty);
return(string.Join(Environment.NewLine, results));
}
private void selftest()
{
// MOEBIUS test
// <uid> <nt> <nr_0> <ar_0> <nt1> <nr_1> <ar_1>
// 0x12345678 0x1AD8DF2B 0x1D316024 0x620EF048 0x30D6CB07 0xC52077E2 0x837AC61A
// Found Key: [a0a1a2a3a4a5]
var t = new MyKey
{
UID = 0x12345678,
nt0 = 0x1AD8DF2B,
nr0 = 0x1D316024,
ar0 = 0x620EF048,
nt1 = 0x30D6CB07,
nr1 = 0xC52077E2,
ar1 = 0x837AC61A
};
t.key = MfKey.MfKey32(t.UID, t.nt0, t.nr0, t.ar0, t.nt1, t.nr1, t.ar1);
t.Found = t.key != ulong.MaxValue;
if (t.Found && t.key == 0xa0a1a2a3a4a5)
{
var s = $"[S{t.Sector}/B%d] Type {t.KeyType} Key found [{t.key:x12}] {Environment.NewLine} ";
Debug.WriteLine(s);
}
// MFKEY32 standard
//:: < uid > < nt > < nr_0 > < ar_0 > < nr_1 > < ar_1 >
// 0x52B0F519 0x5417D1F8 0x4D545EA7 0xE15AC8C2 0xDAC1A7F4 0x5AE5C37F
//t.UID = 0x52B0F519;
//t.nt0 = 0x5417D1F8; t.nr0 = 0x4D545EA7; t.ar0 = 0xE15AC8C2;
// t.nr1 = 0xDAC1A7F4; t.ar1 = 0x5AE5C37F;
//t.Found = mfkey32(t.UID, t.nt0, t.nr0, t.ar0, t.nr1, t.ar1, out t.key);
//if (t.Found)
//{
// var s = $"[S{t.Sector}/B%d] Type {t.KeyType} Key found [{t.key:x12}] {Environment.NewLine} ";
// Debug.WriteLine(s);
//}
}
public void MfKey32_SameNtManyNonce(uint uid, uint nt, int randomSeed, int nonceCount, ulong expectedKey)
{
var p64 = Crypto1.PrngSuccessor(nt, 64);
var list = new List <Nonce>();
Random rnd = new Random(randomSeed);
for (int i = 0; i < nonceCount; i++)
{
var crypto1 = new Crypto1(expectedKey);
crypto1.Crypto1Word(uid ^ nt);
var nr = (uint)rnd.Next();
list.Add(new Nonce()
{
Nr = crypto1.Crypto1Word(nr) ^ nr,
Ar = p64 ^ crypto1.Crypto1Word()
});
}
var key = MfKey.MfKey32(uid, nt, list);
Assert.AreEqual(expectedKey, key);
}