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(XP3): another encryption.

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This commit is contained in:
morkt 2017-02-05 02:31:15 +04:00
parent b02b95cbf1
commit 87086bb3fe
1 changed files with 21 additions and 0 deletions
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21
ArcFormats/KiriKiri/CryptAlgorithms.cs
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@ -850,6 +850,27 @@ namespace GameRes.Formats.KiriKiri
}
}
// reminder:
// locate virtual table, then find constructor where it's referenced.
[Serializable]
public class YuzuCrypt : ICrypt
{
public override void Decrypt (Xp3Entry entry, long offset, byte[] data, int pos, int count)
{
uint hash = entry.Hash ^ 0x1DDB6E7A;
byte key = (byte)(hash ^ (hash >> 8) ^ (hash >> 16) ^ (hash >> 24));
if (0 == key)
key = 0xD0;
for (int i = 0; i < count; ++i)
data[pos+i] ^= key;
}
public override void Encrypt (Xp3Entry entry, long offset, byte[] data, int pos, int count)
{
Decrypt (entry, offset, data, pos, count);
}
}
[Serializable]
public class HighRunningCrypt : ICrypt
{