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(KiriKiri): another encryption scheme.

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This commit is contained in:
morkt
2016-09-10 15:10:32 +04:00
parent d05bcef548
commit 9fe37e18ca
2 changed files with 37 additions and 0 deletions
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34
ArcFormats/KiriKiri/CryptAlgorithms.cs
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@@ -765,4 +765,38 @@ namespace GameRes.Formats.KiriKiri
Decrypt (entry, offset, values, pos, count);
}
}
[Serializable]
public class StripeCrypt : ICrypt
{
readonly byte m_key;
public StripeCrypt (byte key)
{
m_key = key;
}
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
{
return (byte)((value ^ m_key) + 1);
}
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
{
for (int i = 0; i < count; ++i)
{
values[pos+i] ^= m_key;
values[pos+i] ++;
}
}
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
{
for (int i = 0; i < count; ++i)
{
values[pos+i] --;
values[pos+i] ^= m_key;
}
}
}
}