mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-24 03:44:13 +08:00
(KiriKiri): encryption algorithms implementations moved to a separate file.
This commit is contained in:
morkt
parent
01874b69ae
commit
9f4459441c
@ -103,6 +103,7 @@
|
||||
<Compile Include="Kaguya\ArcANM.cs" />
|
||||
<Compile Include="Kaguya\ArcLINK.cs" />
|
||||
<Compile Include="Kaguya\ImageAO.cs" />
|
||||
<Compile Include="KiriKiri\CryptAlgorithms.cs" />
|
||||
<Compile Include="Liar\ArcLWG.cs" />
|
||||
<Compile Include="Propeller\ArcMGR.cs" />
|
||||
<Compile Include="Propeller\ArcMPK.cs" />
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
//! \date Wed Jul 16 13:58:17 2014
|
||||
//! \brief KiriKiri engine archive implementation.
|
||||
//
|
||||
// Copyright (C) 2014-2015 by morkt
|
||||
// Copyright (C) 2014-2016 by morkt
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to
|
||||
@ -837,505 +837,4 @@ NextEntry:
|
||||
}
|
||||
#endregion
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public abstract class ICrypt
|
||||
{
|
||||
/// <summary>
|
||||
/// whether Adler32 checksum should be calculated after contents have been encrypted.
|
||||
/// </summary>
|
||||
public virtual bool HashAfterCrypt { get { return false; } }
|
||||
|
||||
/// <summary>
|
||||
/// whether XP3 index is obfuscated:
|
||||
/// - duplicate entries
|
||||
/// - entries have additional dummy segments
|
||||
/// </summary>
|
||||
public virtual bool ObfuscatedIndex { get { return false; } }
|
||||
|
||||
public virtual byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte[] buffer = new byte[1] { value };
|
||||
Decrypt (entry, offset, buffer, 0, 1);
|
||||
return buffer[0];
|
||||
}
|
||||
|
||||
public abstract void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count);
|
||||
|
||||
public virtual void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
throw new NotImplementedException (arcStrings.MsgEncNotImplemented);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class NoCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return value;
|
||||
}
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
return;
|
||||
}
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class FateCrypt : ICrypt
|
||||
{
|
||||
public override bool HashAfterCrypt { get { return true; } }
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte result = (byte)(value ^ 0x36);
|
||||
if (0x13 == offset)
|
||||
result ^= 1;
|
||||
else if (0x2ea29 == offset)
|
||||
result ^= 3;
|
||||
return result;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= 0x36;
|
||||
}
|
||||
if (offset > 0x2ea29)
|
||||
return;
|
||||
if (offset + count > 0x2ea29)
|
||||
values[pos+0x2ea29-offset] ^= 3;
|
||||
if (offset > 0x13)
|
||||
return;
|
||||
if (offset + count > 0x13)
|
||||
values[pos+0x13-offset] ^= 1;
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class HashCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ entry.Hash);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class XorCrypt : ICrypt
|
||||
{
|
||||
private byte m_key;
|
||||
|
||||
public byte Key
|
||||
{
|
||||
get { return m_key; }
|
||||
set { m_key = value; }
|
||||
}
|
||||
|
||||
public XorCrypt (uint key)
|
||||
{
|
||||
m_key = (byte)key;
|
||||
}
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ m_key);
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SwanSongCrypt : ICrypt
|
||||
{
|
||||
static private byte Adjust (uint hash, out int shift)
|
||||
{
|
||||
int cl = (int)(hash & 0xff);
|
||||
if (0 == cl) cl = 0x0f;
|
||||
shift = cl & 7;
|
||||
int ch = (int)((hash >> 8) & 0xff);
|
||||
if (0 == ch) ch = 0xf0;
|
||||
return (byte)ch;
|
||||
}
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
uint data = (uint)(value ^ xor);
|
||||
return (byte)((data >> shift) | (data << (8 - shift)));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint data = (uint)(values[pos+i] ^ xor);
|
||||
values[pos+i] = (byte)((data >> shift) | (data << (8 - shift)));
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint data = values[pos+i];
|
||||
data = (byte)((data << shift) | (data >> (8 - shift)));
|
||||
values[pos+i] = (byte)(data ^ xor);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SeitenCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
int ecx = (int)key & 0x18;
|
||||
value ^= (byte)((key >> ecx) | (key >> (ecx & 8)));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
value += (byte)key;
|
||||
}
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
value -= (byte)(key >> (int)(key & 0x10));
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
int shift;
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
byte v = buffer[pos+i];
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
shift = (int)key & 0x18;
|
||||
uint ebx = key >> shift;
|
||||
shift &= 8;
|
||||
v ^= (byte)(ebx | (key >> shift));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
v += (byte)key;
|
||||
}
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
shift = (int)key & 0x10;
|
||||
v -= (byte)(key >> shift);
|
||||
}
|
||||
buffer[pos+i] = v;
|
||||
++offset;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
values[pos+i] += (byte)(key >> (int)(key & 0x10));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
values[pos+i] -= (byte)key;
|
||||
}
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
int ecx = (int)key & 0x18;
|
||||
values[pos+i] ^= (byte)((key >> ecx) | (key >> (ecx & 8)));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class OkibaCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (offset < 0x65)
|
||||
return (byte)(value ^ (byte)(entry.Hash >> 4));
|
||||
uint key = entry.Hash;
|
||||
// 0,1,2,3 -> 1,0,3,2
|
||||
key = ((key & 0xff0000) << 8) | ((key & 0xff000000) >> 8)
|
||||
| ((key & 0xff00) >> 8) | ((key & 0xff) << 8);
|
||||
key >>= 8 * ((int)(offset - 0x65) & 3);
|
||||
return (byte)(value ^ (byte)key);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int i = 0;
|
||||
if (offset < 0x65)
|
||||
{
|
||||
uint key = entry.Hash >> 4;
|
||||
int limit = Math.Min (count, (int)(0x65 - offset));
|
||||
for (; i < limit; ++i)
|
||||
{
|
||||
values[pos+i] ^= (byte)key;
|
||||
++offset;
|
||||
}
|
||||
}
|
||||
if (i < count)
|
||||
{
|
||||
offset -= 0x65;
|
||||
uint key = entry.Hash;
|
||||
key = ((key & 0xff0000) << 8) | ((key & 0xff000000) >> 8)
|
||||
| ((key & 0xff00) >> 8) | ((key & 0xff) << 8);
|
||||
do
|
||||
{
|
||||
values[pos+i] ^= (byte)(key >> (8 * ((int)offset & 3)));
|
||||
++offset;
|
||||
}
|
||||
while (++i < count);
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SaiminCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
if (offset < 0x7B)
|
||||
value ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
value += (byte)(-32 * key);
|
||||
else if (offset < 0x171)
|
||||
value ^= (byte)(43 * key);
|
||||
else if (offset <= 0xffffffffL)
|
||||
value += (byte)(-54 * key);
|
||||
return value;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count && offset <= 0xffffffffL; ++i, ++offset)
|
||||
{
|
||||
if (offset < 0x7B)
|
||||
values[pos+i] ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
values[pos+i] += (byte)(-32 * key);
|
||||
else if (offset >= 0x171)
|
||||
values[pos+i] += (byte)(-54 * key);
|
||||
else
|
||||
values[pos+i] ^= (byte)(43 * key);
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count && offset <= 0xffffffffL; ++i, ++offset)
|
||||
{
|
||||
if (offset < 0x7B)
|
||||
values[pos+i] ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
values[pos+i] -= (byte)(-32 * key);
|
||||
else if (offset >= 0x171)
|
||||
values[pos+i] -= (byte)(-54 * key);
|
||||
else
|
||||
values[pos+i] ^= (byte)(43 * key);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class DameganeCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
return (byte)(value ^ entry.Hash);
|
||||
else
|
||||
return (byte)(value ^ offset);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i, ++offset)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
values[pos+i] ^= (byte)entry.Hash;
|
||||
else
|
||||
values[pos+i] ^= (byte)offset;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class GakuenButouCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
return (byte)(value ^ offset);
|
||||
else
|
||||
return (byte)(value ^ entry.Hash);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i, ++offset)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
values[pos+i] ^= (byte)offset;
|
||||
else
|
||||
values[pos+i] ^= (byte)entry.Hash;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class AlteredPinkCrypt : ICrypt
|
||||
{
|
||||
static readonly byte[] KeyTable = {
|
||||
0x43, 0xF8, 0xAD, 0x08, 0xDF, 0xB7, 0x26, 0x44, 0xF0, 0xD9, 0xE9, 0x24, 0x1A, 0xC1, 0xEE, 0xB4,
|
||||
0x11, 0x4B, 0xE4, 0xAF, 0x01, 0x5B, 0xF0, 0xAB, 0x6A, 0x70, 0x78, 0x84, 0xB0, 0x78, 0x4F, 0xED,
|
||||
0x39, 0x52, 0x69, 0xAF, 0xC4, 0x92, 0x2A, 0x21, 0xDE, 0xDC, 0x6E, 0x63, 0x9D, 0x9B, 0x63, 0xE1,
|
||||
0xB1, 0x94, 0x40, 0x6E, 0x3A, 0x52, 0x5A, 0x28, 0x08, 0x4D, 0xFB, 0x22, 0x18, 0xEB, 0xBA, 0x98,
|
||||
0x49, 0x77, 0xBF, 0xAA, 0x43, 0x75, 0xF5, 0xD3, 0x83, 0x71, 0x58, 0xA4, 0xAF, 0x1B, 0x53, 0x99,
|
||||
0x8A, 0x27, 0x5B, 0xC2, 0x7F, 0x7A, 0xCD, 0x8D, 0x33, 0x59, 0xEB, 0xA6, 0xFA, 0x7C, 0x00, 0x19,
|
||||
0xC4, 0xAA, 0x24, 0xF8, 0x84, 0xCD, 0xF7, 0x20, 0x4B, 0xAB, 0xF1, 0xD5, 0x01, 0x6F, 0x7C, 0x91,
|
||||
0x08, 0x7D, 0x8D, 0x89, 0x7C, 0x71, 0x65, 0x99, 0x9B, 0x6F, 0x3A, 0x1C, 0x49, 0xE3, 0xAF, 0x1F,
|
||||
0xC6, 0xA5, 0x79, 0xFE, 0xAE, 0xA1, 0xCA, 0x59, 0x3C, 0xEE, 0xC1, 0x02, 0xBD, 0x2B, 0x8E, 0xC5,
|
||||
0x7D, 0x38, 0x80, 0x8F, 0x72, 0xF3, 0x86, 0x5D, 0xF4, 0x20, 0x0A, 0x5B, 0xA0, 0xE3, 0x85, 0xB5,
|
||||
0x67, 0x43, 0x96, 0xBB, 0x75, 0x86, 0x8D, 0x7E, 0x7E, 0xE6, 0xAA, 0x18, 0x57, 0xC4, 0xAA, 0x87,
|
||||
0xDC, 0x74, 0x05, 0xAA, 0xBD, 0x5E, 0x4F, 0xA9, 0xB5, 0x5E, 0xC5, 0xE8, 0x11, 0x6D, 0x68, 0x89,
|
||||
0x17, 0x7C, 0x10, 0x05, 0xA2, 0xBA, 0x43, 0x01, 0xD6, 0xFD, 0x26, 0x19, 0x57, 0xFA, 0x4D, 0x01,
|
||||
0xB0, 0xED, 0x3A, 0x55, 0xEB, 0x65, 0x8E, 0xD1, 0x58, 0x27, 0xAD, 0xA1, 0x5E, 0x57, 0x3F, 0xA0,
|
||||
0xEF, 0x59, 0x3E, 0xA4, 0xEB, 0x12, 0x15, 0x60, 0xBE, 0x95, 0x61, 0x0B, 0x98, 0xF5, 0xF4, 0x12,
|
||||
0x1C, 0xD8, 0x62, 0x3F, 0xFD, 0xCF, 0x01, 0x3A, 0xE7, 0xC2, 0x19, 0x38, 0x6C, 0xC3, 0x90, 0x3E,
|
||||
};
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ KeyTable[offset & 0xFF]);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= KeyTable[(offset+i) & 0xFF];
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class NatsupochiCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ (entry.Hash >> 3));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)(entry.Hash >> 3);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class IncubusCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)~(value ^ (entry.Hash + 1));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)~(entry.Hash + 1);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
530
ArcFormats/KiriKiri/CryptAlgorithms.cs
Normal file
530
ArcFormats/KiriKiri/CryptAlgorithms.cs
Normal file
@ -0,0 +1,530 @@
|
||||
//! \file CryptAlgorithms.cs
|
||||
//! \date Thu Feb 04 12:08:40 2016
|
||||
//! \brief KiriKiri engine encryption algorithms.
|
||||
//
|
||||
// Copyright (C) 2016 by morkt
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to
|
||||
// deal in the Software without restriction, including without limitation the
|
||||
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
// sell copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in
|
||||
// all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||
// IN THE SOFTWARE.
|
||||
//
|
||||
|
||||
using System;
|
||||
|
||||
namespace GameRes.Formats.KiriKiri
|
||||
{
|
||||
[Serializable]
|
||||
public abstract class ICrypt
|
||||
{
|
||||
/// <summary>
|
||||
/// whether Adler32 checksum should be calculated after contents have been encrypted.
|
||||
/// </summary>
|
||||
public virtual bool HashAfterCrypt { get { return false; } }
|
||||
|
||||
/// <summary>
|
||||
/// whether XP3 index is obfuscated:
|
||||
/// - duplicate entries
|
||||
/// - entries have additional dummy segments
|
||||
/// </summary>
|
||||
public virtual bool ObfuscatedIndex { get { return false; } }
|
||||
|
||||
public virtual byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte[] buffer = new byte[1] { value };
|
||||
Decrypt (entry, offset, buffer, 0, 1);
|
||||
return buffer[0];
|
||||
}
|
||||
|
||||
public abstract void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count);
|
||||
|
||||
public virtual void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
throw new NotImplementedException (Strings.arcStrings.MsgEncNotImplemented);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class NoCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return value;
|
||||
}
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
return;
|
||||
}
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class FateCrypt : ICrypt
|
||||
{
|
||||
public override bool HashAfterCrypt { get { return true; } }
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte result = (byte)(value ^ 0x36);
|
||||
if (0x13 == offset)
|
||||
result ^= 1;
|
||||
else if (0x2ea29 == offset)
|
||||
result ^= 3;
|
||||
return result;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= 0x36;
|
||||
}
|
||||
if (offset > 0x2ea29)
|
||||
return;
|
||||
if (offset + count > 0x2ea29)
|
||||
values[pos+0x2ea29-offset] ^= 3;
|
||||
if (offset > 0x13)
|
||||
return;
|
||||
if (offset + count > 0x13)
|
||||
values[pos+0x13-offset] ^= 1;
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class HashCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ entry.Hash);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class XorCrypt : ICrypt
|
||||
{
|
||||
private byte m_key;
|
||||
|
||||
public byte Key
|
||||
{
|
||||
get { return m_key; }
|
||||
set { m_key = value; }
|
||||
}
|
||||
|
||||
public XorCrypt (uint key)
|
||||
{
|
||||
m_key = (byte)key;
|
||||
}
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ m_key);
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SwanSongCrypt : ICrypt
|
||||
{
|
||||
static private byte Adjust (uint hash, out int shift)
|
||||
{
|
||||
int cl = (int)(hash & 0xff);
|
||||
if (0 == cl) cl = 0x0f;
|
||||
shift = cl & 7;
|
||||
int ch = (int)((hash >> 8) & 0xff);
|
||||
if (0 == ch) ch = 0xf0;
|
||||
return (byte)ch;
|
||||
}
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
uint data = (uint)(value ^ xor);
|
||||
return (byte)((data >> shift) | (data << (8 - shift)));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint data = (uint)(values[pos+i] ^ xor);
|
||||
values[pos+i] = (byte)((data >> shift) | (data << (8 - shift)));
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int shift;
|
||||
byte xor = Adjust (entry.Hash, out shift);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint data = values[pos+i];
|
||||
data = (byte)((data << shift) | (data >> (8 - shift)));
|
||||
values[pos+i] = (byte)(data ^ xor);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SeitenCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
int ecx = (int)key & 0x18;
|
||||
value ^= (byte)((key >> ecx) | (key >> (ecx & 8)));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
value += (byte)key;
|
||||
}
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
value -= (byte)(key >> (int)(key & 0x10));
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
int shift;
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
byte v = buffer[pos+i];
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
shift = (int)key & 0x18;
|
||||
uint ebx = key >> shift;
|
||||
shift &= 8;
|
||||
v ^= (byte)(ebx | (key >> shift));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
v += (byte)key;
|
||||
}
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
shift = (int)key & 0x10;
|
||||
v -= (byte)(key >> shift);
|
||||
}
|
||||
buffer[pos+i] = v;
|
||||
++offset;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint key = entry.Hash ^ (uint)offset;
|
||||
if (0 != (key & 8))
|
||||
{
|
||||
values[pos+i] += (byte)(key >> (int)(key & 0x10));
|
||||
}
|
||||
if (0 != (key & 4))
|
||||
{
|
||||
values[pos+i] -= (byte)key;
|
||||
}
|
||||
if (0 != (key & 2))
|
||||
{
|
||||
int ecx = (int)key & 0x18;
|
||||
values[pos+i] ^= (byte)((key >> ecx) | (key >> (ecx & 8)));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class OkibaCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (offset < 0x65)
|
||||
return (byte)(value ^ (byte)(entry.Hash >> 4));
|
||||
uint key = entry.Hash;
|
||||
// 0,1,2,3 -> 1,0,3,2
|
||||
key = ((key & 0xff0000) << 8) | ((key & 0xff000000) >> 8)
|
||||
| ((key & 0xff00) >> 8) | ((key & 0xff) << 8);
|
||||
key >>= 8 * ((int)(offset - 0x65) & 3);
|
||||
return (byte)(value ^ (byte)key);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
int i = 0;
|
||||
if (offset < 0x65)
|
||||
{
|
||||
uint key = entry.Hash >> 4;
|
||||
int limit = Math.Min (count, (int)(0x65 - offset));
|
||||
for (; i < limit; ++i)
|
||||
{
|
||||
values[pos+i] ^= (byte)key;
|
||||
++offset;
|
||||
}
|
||||
}
|
||||
if (i < count)
|
||||
{
|
||||
offset -= 0x65;
|
||||
uint key = entry.Hash;
|
||||
key = ((key & 0xff0000) << 8) | ((key & 0xff000000) >> 8)
|
||||
| ((key & 0xff00) >> 8) | ((key & 0xff) << 8);
|
||||
do
|
||||
{
|
||||
values[pos+i] ^= (byte)(key >> (8 * ((int)offset & 3)));
|
||||
++offset;
|
||||
}
|
||||
while (++i < count);
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class SaiminCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
if (offset < 0x7B)
|
||||
value ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
value += (byte)(-32 * key);
|
||||
else if (offset < 0x171)
|
||||
value ^= (byte)(43 * key);
|
||||
else if (offset <= 0xffffffffL)
|
||||
value += (byte)(-54 * key);
|
||||
return value;
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count && offset <= 0xffffffffL; ++i, ++offset)
|
||||
{
|
||||
if (offset < 0x7B)
|
||||
values[pos+i] ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
values[pos+i] += (byte)(-32 * key);
|
||||
else if (offset >= 0x171)
|
||||
values[pos+i] += (byte)(-54 * key);
|
||||
else
|
||||
values[pos+i] ^= (byte)(43 * key);
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)entry.Hash;
|
||||
for (int i = 0; i < count && offset <= 0xffffffffL; ++i, ++offset)
|
||||
{
|
||||
if (offset < 0x7B)
|
||||
values[pos+i] ^= (byte)(21 * key);
|
||||
else if (offset < 0xF6)
|
||||
values[pos+i] -= (byte)(-32 * key);
|
||||
else if (offset >= 0x171)
|
||||
values[pos+i] -= (byte)(-54 * key);
|
||||
else
|
||||
values[pos+i] ^= (byte)(43 * key);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class DameganeCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
return (byte)(value ^ entry.Hash);
|
||||
else
|
||||
return (byte)(value ^ offset);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i, ++offset)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
values[pos+i] ^= (byte)entry.Hash;
|
||||
else
|
||||
values[pos+i] ^= (byte)offset;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class GakuenButouCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
return (byte)(value ^ offset);
|
||||
else
|
||||
return (byte)(value ^ entry.Hash);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i, ++offset)
|
||||
{
|
||||
if (0 != (offset & 1))
|
||||
values[pos+i] ^= (byte)offset;
|
||||
else
|
||||
values[pos+i] ^= (byte)entry.Hash;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class AlteredPinkCrypt : ICrypt
|
||||
{
|
||||
static readonly byte[] KeyTable = {
|
||||
0x43, 0xF8, 0xAD, 0x08, 0xDF, 0xB7, 0x26, 0x44, 0xF0, 0xD9, 0xE9, 0x24, 0x1A, 0xC1, 0xEE, 0xB4,
|
||||
0x11, 0x4B, 0xE4, 0xAF, 0x01, 0x5B, 0xF0, 0xAB, 0x6A, 0x70, 0x78, 0x84, 0xB0, 0x78, 0x4F, 0xED,
|
||||
0x39, 0x52, 0x69, 0xAF, 0xC4, 0x92, 0x2A, 0x21, 0xDE, 0xDC, 0x6E, 0x63, 0x9D, 0x9B, 0x63, 0xE1,
|
||||
0xB1, 0x94, 0x40, 0x6E, 0x3A, 0x52, 0x5A, 0x28, 0x08, 0x4D, 0xFB, 0x22, 0x18, 0xEB, 0xBA, 0x98,
|
||||
0x49, 0x77, 0xBF, 0xAA, 0x43, 0x75, 0xF5, 0xD3, 0x83, 0x71, 0x58, 0xA4, 0xAF, 0x1B, 0x53, 0x99,
|
||||
0x8A, 0x27, 0x5B, 0xC2, 0x7F, 0x7A, 0xCD, 0x8D, 0x33, 0x59, 0xEB, 0xA6, 0xFA, 0x7C, 0x00, 0x19,
|
||||
0xC4, 0xAA, 0x24, 0xF8, 0x84, 0xCD, 0xF7, 0x20, 0x4B, 0xAB, 0xF1, 0xD5, 0x01, 0x6F, 0x7C, 0x91,
|
||||
0x08, 0x7D, 0x8D, 0x89, 0x7C, 0x71, 0x65, 0x99, 0x9B, 0x6F, 0x3A, 0x1C, 0x49, 0xE3, 0xAF, 0x1F,
|
||||
0xC6, 0xA5, 0x79, 0xFE, 0xAE, 0xA1, 0xCA, 0x59, 0x3C, 0xEE, 0xC1, 0x02, 0xBD, 0x2B, 0x8E, 0xC5,
|
||||
0x7D, 0x38, 0x80, 0x8F, 0x72, 0xF3, 0x86, 0x5D, 0xF4, 0x20, 0x0A, 0x5B, 0xA0, 0xE3, 0x85, 0xB5,
|
||||
0x67, 0x43, 0x96, 0xBB, 0x75, 0x86, 0x8D, 0x7E, 0x7E, 0xE6, 0xAA, 0x18, 0x57, 0xC4, 0xAA, 0x87,
|
||||
0xDC, 0x74, 0x05, 0xAA, 0xBD, 0x5E, 0x4F, 0xA9, 0xB5, 0x5E, 0xC5, 0xE8, 0x11, 0x6D, 0x68, 0x89,
|
||||
0x17, 0x7C, 0x10, 0x05, 0xA2, 0xBA, 0x43, 0x01, 0xD6, 0xFD, 0x26, 0x19, 0x57, 0xFA, 0x4D, 0x01,
|
||||
0xB0, 0xED, 0x3A, 0x55, 0xEB, 0x65, 0x8E, 0xD1, 0x58, 0x27, 0xAD, 0xA1, 0x5E, 0x57, 0x3F, 0xA0,
|
||||
0xEF, 0x59, 0x3E, 0xA4, 0xEB, 0x12, 0x15, 0x60, 0xBE, 0x95, 0x61, 0x0B, 0x98, 0xF5, 0xF4, 0x12,
|
||||
0x1C, 0xD8, 0x62, 0x3F, 0xFD, 0xCF, 0x01, 0x3A, 0xE7, 0xC2, 0x19, 0x38, 0x6C, 0xC3, 0x90, 0x3E,
|
||||
};
|
||||
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ KeyTable[offset & 0xFF]);
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= KeyTable[(offset+i) & 0xFF];
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class NatsupochiCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)(value ^ (entry.Hash >> 3));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)(entry.Hash >> 3);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
|
||||
[Serializable]
|
||||
public class IncubusCrypt : ICrypt
|
||||
{
|
||||
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
|
||||
{
|
||||
return (byte)~(value ^ (entry.Hash + 1));
|
||||
}
|
||||
|
||||
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
byte key = (byte)~(entry.Hash + 1);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
values[pos+i] ^= key;
|
||||
}
|
||||
}
|
||||
|
||||
public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
|
||||
{
|
||||
Decrypt (entry, offset, values, pos, count);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user