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(KiriKiri): another encryption scheme.

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This commit is contained in:
morkt 2016-07-23 02:47:07 +04:00
parent d7b4a7d6bb
commit 6cdea59ca4
2 changed files with 31 additions and 0 deletions
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30
ArcFormats/KiriKiri/CryptAlgorithms.cs
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@ -666,4 +666,34 @@ namespace GameRes.Formats.KiriKiri
Decrypt (entry, offset, values, pos, count); Decrypt (entry, offset, values, pos, count);
} }
} }
[Serializable]
public class HibikiCrypt : ICrypt
{
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
{
if (0 != (offset & 4) || offset <= 0x64)
return (byte)(value ^ (entry.Hash >> 5));
else
return (byte)(value ^ (entry.Hash >> 8));
}
public override void Decrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
{
byte key1 = (byte)(entry.Hash >> 5);
byte key2 = (byte)(entry.Hash >> 8);
for (int i = 0; i < count; ++i, ++offset)
{
if (0 != (offset & 4) || offset <= 0x64)
buffer[pos+i] ^= key1;
else
buffer[pos+i] ^= key2;
}
}
public override void Encrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
{
Decrypt (entry, offset, buffer, pos, count);
}
}
} }

1
supported.html
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@ -238,6 +238,7 @@ Imouto Style<br/>
Inaho no Mirai<br/> Inaho no Mirai<br/>
Karakara<br/> Karakara<br/>
Kourin no Machi, Lavender no Shoujo<br/> Kourin no Machi, Lavender no Shoujo<br/>
LOVELY x CATION<br/>
Mayoeru Futari to Sekai no Subete<br/> Mayoeru Futari to Sekai no Subete<br/>
Mahoutsukai no Yoru<br/> Mahoutsukai no Yoru<br/>
Nakadashi Hara Maid series<br/> Nakadashi Hara Maid series<br/>