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加筆: 吉里吉里 復号アルゴリズムの追加 #208

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Merged
crskycode merged 1 commit into from
Jul 12, 2026
Merged

加筆: 吉里吉里 復号アルゴリズムの追加 #208

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19 changes: 19 additions & 0 deletions ArcFormats/KiriKiri/CryptAlgorithms.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1671,4 +1671,23 @@ private byte[] InitKey(uint hash)
}
}

[Serializable]
public class HoneyCombCrypt : ICrypt
{
public override void Decrypt(Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
{
uint seed = entry.Hash ^ 0xABCD9876;
byte key = (byte)((seed >> 24) ^ (seed >> 16) ^ (seed >> 8) ^ seed);
if (key == 0)
key = 0xA5;
for (int i = 0; i < count; ++i)
buffer[pos + i] ^= key;
}

public override void Encrypt(Xp3Entry entry, long offset, byte[] values, int pos, int count)
{
Decrypt(entry, offset, values, pos, count);
}
}

}
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