Public-Mirror/GARbro-mirror
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2024-12-25 12:24:12 +08:00
Code Issues Projects Releases Wiki Activity

(KiriKiri): added another encryption algorithm.

Browse Source
This commit is contained in:
morkt 2016-06-14 18:13:38 +04:00
parent eb61ca6861
commit 5c7170f9c9
1 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
ArcFormats/KiriKiri/CryptAlgorithms.cs
View File

@ -581,11 +581,13 @@ namespace GameRes.Formats.KiriKiri
{ {
public override byte Decrypt (Xp3Entry entry, long offset, byte value) public override byte Decrypt (Xp3Entry entry, long offset, byte value)
{ {
return (byte)(value ^ (entry.Hash >> 12)); return offset < 5 ? value : (byte)(value ^ (entry.Hash >> 12));
} }
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count) public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
{ {
if (offset < 5)
return;
byte key = (byte)(entry.Hash >> 12); byte key = (byte)(entry.Hash >> 12);
for (int i = 0; i < count; ++i) for (int i = 0; i < count; ++i)
{ {
@ -636,4 +638,27 @@ namespace GameRes.Formats.KiriKiri
return Math.Min (entry.Size, 0x100u); return Math.Min (entry.Size, 0x100u);
} }
} }
[Serializable]
public class SourireCrypt : ICrypt
{
public override byte Decrypt (Xp3Entry entry, long offset, byte value)
{
return (byte)(value ^ entry.Hash ^ 0xCD);
}
public override void Decrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
{
byte key = (byte)(entry.Hash ^ 0xCD);
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);
}
}
} }