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Make --extract-quests use the correct quest name.

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Some refactoring.
This commit is contained in:
codestation 2011-07-24 17:55:20 -04:30
parent 966c01a9c8
commit ca3d1b8a02
6 changed files with 41 additions and 19 deletions
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1
.gitignore vendored
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@ -1,2 +1,3 @@
/index.bin
/.settings
/bcprov-jdk16-146.jar

13
src/base/MHUtils.java
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@ -113,4 +113,17 @@ public abstract class MHUtils {
}
return res;
}
static final String HEXES = "0123456789ABCDEF";
public static String getHex(byte[] raw) {
if (raw == null) {
return null;
}
final StringBuilder hex = new StringBuilder(2 * raw.length);
for (final byte b : raw) {
hex.append(HEXES.charAt((b & 0xF0) >> 4)).append(HEXES.charAt((b & 0x0F))).append(' ');
}
return hex.toString();
}
}

13
src/crypt/DecryptUtils.java
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@ -87,4 +87,17 @@ public abstract class DecryptUtils {
table[i + 2] = base_table[table[i + 2] & 0xFF];
table[i + 3] = base_table[table[i + 3] & 0xFF];
}
static final String HEXES = "0123456789ABCDEF";
public static String getHex(byte[] raw) {
if (raw == null) {
return null;
}
final StringBuilder hex = new StringBuilder(2 * raw.length);
for (final byte b : raw) {
hex.append(HEXES.charAt((b & 0xF0) >> 4)).append(HEXES.charAt((b & 0x0F))).append(' ');
}
return hex.toString();
}
}

21
src/crypt/KirkCypher.java
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@ -21,23 +21,12 @@ import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import base.MHUtils;
import jpcsp.crypto.CryptoEngine;
import keys.GameKeys;
public class KirkCypher implements GameKeys {
static final String HEXES = "0123456789ABCDEF";
private static String getHex(byte[] raw) {
if (raw == null) {
return null;
}
final StringBuilder hex = new StringBuilder(2 * raw.length);
for (final byte b : raw) {
hex.append(HEXES.charAt((b & 0xF0) >> 4)).append(HEXES.charAt((b & 0x0F))).append(' ');
}
return hex.toString();
}
public class KirkCypher extends MHUtils implements GameKeys {
public void decrypt(String file) {
try {
@ -47,11 +36,13 @@ public class KirkCypher implements GameKeys {
fd.seek(0);
System.out.println("Decrypting savedata (KIRK engine): " + byte_bt.length + " bytes");
System.out.println("Gamekey: " + getHex(gamekey));
byte out[] = new CryptoEngine().DecryptSavedata(byte_bt, byte_bt.length, gamekey, 0);
byte hash[] = new byte[0x10];
byte out[] = new CryptoEngine().DecryptSavedata(byte_bt, byte_bt.length, gamekey, 0, hash);
fd.write(out);
fd.setLength(out.length);
fd.close();
System.out.println("Finished (" + out.length + " bytes)");
System.out.println("Hash: " + getHex(hash));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {

9
src/crypt/QuestCypher.java
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@ -30,9 +30,11 @@ import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import base.MHUtils;
import keys.QuestKeys;
public class QuestCypher implements QuestKeys {
public class QuestCypher extends MHUtils implements QuestKeys {
private short key_var_table[] = {0, 0, 0, 0};
@ -114,17 +116,18 @@ public class QuestCypher implements QuestKeys {
in.read(byte_bt);
in.close();
for(int i = 0; i < 100; i++) {
String mib = new String(byte_bt, (i + 1) * QUEST_SIZE - 16, 16);
ByteBuffer bt = ByteBuffer.wrap(byte_bt,i * QUEST_SIZE, QUEST_SIZE);
bt.order(ByteOrder.LITTLE_ENDIAN);
ShortBuffer sb = bt.asShortBuffer();
short short_bt[] = new short[QUEST_SIZE/2];
sb.get(short_bt);
System.out.println("Decrypting quest file # " + i);
int len = decrypt_quest(short_bt);
if(len > 0) {
System.out.println("Decrypted quest # " + i + ": " + mib);
sb.rewind();
sb.put(short_bt);
String outname = String.format("%s/%02d_quest.bin", directory, i);
String outname = String.format("%s/%s", directory, mib);
FileOutputStream out = new FileOutputStream(outname);
out.write(byte_bt, i * QUEST_SIZE, len);
out.close();

3
src/crypt/SavedataCypher.java
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@ -95,7 +95,7 @@ public class SavedataCypher extends DecryptUtils implements SavedataKeys {
byte byte_bt[] = new byte[(int)fd.length()];
fd.read(byte_bt);
fd.seek(0);
System.out.println("Updating sha1 hash");
System.out.print("Updating ");
update_sha1(byte_bt);
System.out.println("Encrypting savedata");
encrypt_buffer(byte_bt);
@ -120,6 +120,7 @@ public class SavedataCypher extends DecryptUtils implements SavedataKeys {
MessageDigest md = MessageDigest.getInstance("sha-1");
byte digest[] = md.digest(buffer);
System.arraycopy(replace, 0, buf, buf.length - 36, 20);
System.out.println("SHA-1: " + getHex(digest));
System.arraycopy(digest, 0, buf, buf.length - 24, digest.length);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();