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PFS0Encrypted logic intermediate results
This commit is contained in:
Dmitry Isaenko 2019-05-25 18:11:56 +03:00
parent da423152fc
commit 56ffca7b92
9 changed files with 300 additions and 62 deletions
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79
src/main/java/konogonka/Tools/NCA/NCAContentPFS0.java
View file

@ -1,12 +1,10 @@
package konogonka.Tools.NCA;
import konogonka.LoperConverter;
import konogonka.RainbowHexDump;
import konogonka.Tools.NCA.NCASectionTableBlock.NCASectionBlock;
import konogonka.Tools.PFS0.IPFS0Provider;
import konogonka.Tools.PFS0.PFS0EncryptedProvider;
import konogonka.Tools.PFS0.PFS0Provider;
import konogonka.ctraes.AesCtr;
import konogonka.ctraes.AesCtrDecryptSimple;
import java.io.*;
import java.util.LinkedList;
@ -94,7 +92,7 @@ public class NCAContentPFS0 {
long abosluteOffsetPosition = offsetPosition + (mediaStartOffset * 0x200);
raf.seek(abosluteOffsetPosition);
AesCtrDecryptor decryptor = new AesCtrDecryptor(decryptedKey, ncaSectionBlock.getSectionCTR(), mediaStartOffset * 0x200);
AesCtrDecryptSimple decryptor = new AesCtrDecryptSimple(decryptedKey, ncaSectionBlock.getSectionCTR(), mediaStartOffset * 0x200);
byte[] encryptedBlock;
byte[] dectyptedBlock;
@ -106,7 +104,6 @@ public class NCAContentPFS0 {
Thread pThread = new Thread(new ParseThread(
streamInp,
ncaSectionBlock.getSuperBlockPFS0().getPfs0offset(),
ncaSectionBlock.getSuperBlockPFS0().getPfs0size(),
ncaSectionBlock.getSuperBlockPFS0().getHashTableOffset(),
ncaSectionBlock.getSuperBlockPFS0().getHashTableSize()
));
@ -129,39 +126,46 @@ public class NCAContentPFS0 {
pThread.join();
streamOut.close();
raf.close();
}
/*
* Simplify decryption of the CTR
* */
private class AesCtrDecryptor{
private long realMediaOffset;
byte[] IVarray;
private AesCtr aesCtr;
AesCtrDecryptor(byte[] decryptedKey, byte[] sectionCTR, long realMediaOffset) throws Exception{
this.realMediaOffset = realMediaOffset;
aesCtr = new AesCtr(decryptedKey);
// IV for CTR == 16 bytes
IVarray = new byte[0x10];
// Populate first 8 bytes taken from Header's section Block CTR
System.arraycopy(LoperConverter.flip(sectionCTR), 0x0, IVarray, 0x0, 0x8);
// TODO: re-write
if (pfs0 != null){
PFS0EncryptedProvider pfs0enc = (PFS0EncryptedProvider)pfs0;
pfs0enc.setMeta(
offsetPosition,
file,
decryptedKey,
ncaSectionBlock.getSectionCTR(),
mediaStartOffset,
mediaEndOffset
);
}
//****************************************___DEBUG___*******************************************************
//*
File contentFile = new File("/tmp/decryptedNCA0block.pfs0");
BufferedOutputStream extractedFileOS = new BufferedOutputStream(new FileOutputStream(contentFile));
public byte[] dectyptNext(byte[] enctyptedBlock) throws Exception{
updateIV(realMediaOffset);
byte[] decryptedBlock = aesCtr.decrypt(enctyptedBlock, IVarray);
realMediaOffset += 0x200;
return decryptedBlock;
}
// Populate last 8 bytes calculated. Thanks hactool project!
private void updateIV(long offset){
offset >>= 4;
for (int i = 0; i < 0x8; i++){
IVarray[0x10-i-1] = (byte)(offset & 0xff); // Note: issues could be here
offset >>= 8;
raf = new RandomAccessFile(file, "r");
raf.seek(abosluteOffsetPosition);
decryptor = new AesCtrDecryptSimple(decryptedKey, ncaSectionBlock.getSectionCTR(), mediaStartOffset * 0x200);
for (int i = 0; i < mediaBlockSize; i++){
encryptedBlock = new byte[0x200];
if (raf.read(encryptedBlock) != -1){
//dectyptedBlock = aesCtr.decrypt(encryptedBlock);
dectyptedBlock = decryptor.dectyptNext(encryptedBlock);
// Writing decrypted data to pipe
try {
extractedFileOS.write(dectyptedBlock);
}
catch (IOException e){
System.out.println("Exception @extract");
break;
}
}
}
extractedFileOS.close();
raf.close();
System.out.println("@extract done");
//*//******************************************************************************************************/
}
/*
* Since we representing decrypted data as stream (it's easier to look on it this way),
@ -175,15 +179,14 @@ public class NCAContentPFS0 {
long hashTableSize;
long hashTableRecordsCount;
long pfs0offset;
long pfs0size;
ParseThread(PipedInputStream pipedInputStream, long pfs0offset, long pfs0size, long hashTableOffset, long hashTableSize){
ParseThread(PipedInputStream pipedInputStream, long pfs0offset, long hashTableOffset, long hashTableSize){
this.pipedInputStream = pipedInputStream;
this.hashTableOffset = hashTableOffset;
this.hashTableSize = hashTableSize;
this.hashTableRecordsCount = hashTableSize / 0x20;
this.pfs0offset = pfs0offset;
this.pfs0size = pfs0size;
}
@Override
@ -220,7 +223,7 @@ public class NCAContentPFS0 {
counter += toSkip;
}
//---------------------------------------------------------
pfs0 = new PFS0EncryptedProvider(pipedInputStream);
pfs0 = new PFS0EncryptedProvider(pipedInputStream, counter);
pipedInputStream.close();
}
catch (Exception e){

1
src/main/java/konogonka/Tools/PFS0/IPFS0Provider.java
View file

@ -1,6 +1,7 @@
package konogonka.Tools.PFS0;
public interface IPFS0Provider {
boolean isEncrypted();
String getMagic();
int getFilesCount();
int getStringTableSize();

168
src/main/java/konogonka/Tools/PFS0/PFS0EncryptedProvider.java
View file

@ -1,14 +1,15 @@
package konogonka.Tools.PFS0;
import java.io.PipedInputStream;
import konogonka.ctraes.AesCtrDecryptSimple;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import static konogonka.LoperConverter.getLEint;
import static konogonka.LoperConverter.getLElong;
import static konogonka.LoperConverter.*;
public class PFS0EncryptedProvider implements IPFS0Provider{
private long rawFileDataStart; // If -1 then this PFS0 located @ encrypted region
private long rawFileDataStart; // For this class is pointing to data start position relative to media block start
private String magic;
private int filesCount;
@ -17,15 +18,145 @@ public class PFS0EncryptedProvider implements IPFS0Provider{
private PFS0subFile[] pfs0subFiles;
//---------------------------------------
/*
absOffsetPosOfMediaBlock
Counter - PFS0 Position
mediaBlockSize - PFS0 Subsustem Size
* */
private long rawBlockDataStart;
private PFS0DecryptedStreamProvider pfs0DecryptedStreamProvider;
// Let's do some fuck
private class PFS0DecryptedStreamProvider{
private long mediaStartOffset; // * 0x200
private long mediaEndOffset;
private RandomAccessFile raf;
private PipedOutputStream streamOut;
private PipedInputStream streamInp;
private AesCtrDecryptSimple aesCtrDecryptSimple; // if null, then exception happened.
public PipedInputStream getPipedInputStream(){ return streamInp; }
public void getStarted(PFS0subFile subFile) throws Exception{
System.out.println("rawBlockDataStart: "+rawBlockDataStart);
System.out.println("Skip blocks: "+rawBlockDataStart/0x200); // aesCtrDecryptSimple.skip(THIS)
System.out.println("Skip bytes: "+ (rawBlockDataStart-(rawBlockDataStart/0x200)*0x200)); // write to stream after skiping THIS
// DBG START
File contentFile = new File("/tmp/pfs0-NCA0block.pfs0");
BufferedOutputStream extractedFileOS = new BufferedOutputStream(new FileOutputStream(contentFile));
// DBG END
long mediaBlockSize = mediaEndOffset - mediaStartOffset;
byte[] encryptedBlock;
byte[] dectyptedBlock;
// Skip full-size blocks of 512 bytes that we don't need and start decryption from required one
long startFromBlock = rawBlockDataStart/0x200;
if (startFromBlock > 0) {
aesCtrDecryptSimple.skipNext(startFromBlock);
raf.seek(raf.getFilePointer() + (startFromBlock*0x200));
}
// Since our data could be located in position with some offset from the decrypted block, let's skip bytes left
int skipBytes = (int)(rawBlockDataStart-(rawBlockDataStart/0x200)*0x200);
if (skipBytes > 0){
encryptedBlock = new byte[0x200];
if (raf.read(encryptedBlock) != -1){
dectyptedBlock = aesCtrDecryptSimple.dectyptNext(encryptedBlock);
try {
// DBG START
extractedFileOS.write(dectyptedBlock, skipBytes, 0x200-skipBytes);
// DBG END
//streamOut.write(dectyptedBlock, skipBytes, 0x200);
}
catch (IOException e){
System.out.println("Exception @extract 1st bock");
}
}
startFromBlock++;
}
for (long i = startFromBlock; i < mediaBlockSize; i++){
encryptedBlock = new byte[0x200];
if (raf.read(encryptedBlock) != -1){
//dectyptedBlock = aesCtr.decrypt(encryptedBlock);
dectyptedBlock = aesCtrDecryptSimple.dectyptNext(encryptedBlock);
// Writing decrypted data to pipe
try {
// DBG START
extractedFileOS.write(dectyptedBlock);
// DBG END
//streamOut.write(dectyptedBlock);
}
catch (IOException e){
System.out.println("Exception @extract");
break;
}
}
}
// DBG START
extractedFileOS.close();
// DBG END
}
PFS0DecryptedStreamProvider(File file,
long rawBlockDataStart,
long offsetPositionInFile,
byte[] key,
byte[] sectionCTR,
long mediaStartOffset,
long mediaEndOffset
){
this.mediaStartOffset = mediaStartOffset;
this.mediaEndOffset = mediaEndOffset;
try {
this.raf = new RandomAccessFile(file, "r");
this.raf.seek(offsetPositionInFile + (mediaStartOffset * 0x200));
this.aesCtrDecryptSimple = new AesCtrDecryptSimple(key, sectionCTR, mediaStartOffset * 0x200);
this.streamOut = new PipedOutputStream();
this.streamInp = new PipedInputStream(streamOut);
}
catch (Exception e) {
e.printStackTrace();
}
}
}
// TODO: simplify
public void setMeta(
long offsetPositionInFile,
File fileWithEncPFS0,
byte[] key,
byte[] sectionCTR,
long mediaStartOffset,
long mediaEndOffset
){
this.pfs0DecryptedStreamProvider = new PFS0DecryptedStreamProvider(
fileWithEncPFS0,
rawBlockDataStart,
offsetPositionInFile,
key,
sectionCTR,
mediaStartOffset,
mediaEndOffset
);
try{
pfs0DecryptedStreamProvider.getStarted(pfs0subFiles[0]);
}
catch (Exception e){
e.printStackTrace();
}
}
//---------------------------------------
public PFS0EncryptedProvider(PipedInputStream pipedInputStream,
long pfs0offsetPosition
) throws Exception{
// pfs0offsetPosition is a position relative to Media block. Lets add pfs0 'header's' bytes count and get raw data start position in media block
rawFileDataStart = -1; // Set -1 for PFS0EncryptedProvider
// Detect raw data start position using next var
rawBlockDataStart = pfs0offsetPosition;
public PFS0EncryptedProvider(PipedInputStream pipedInputStream) throws Exception{
byte[] fileStartingBytes = new byte[0x10];
// Read PFS0Provider, files count, header, padding (4 zero bytes)
@ -36,6 +167,8 @@ public class PFS0EncryptedProvider implements IPFS0Provider{
}
fileStartingBytes[i] = (byte)currentByte;
}
// Update position
rawBlockDataStart += 0x10;
// Check PFS0Provider
magic = new String(fileStartingBytes, 0x0, 0x4, StandardCharsets.US_ASCII);
if (! magic.equals("PFS0")){
@ -73,6 +206,8 @@ public class PFS0EncryptedProvider implements IPFS0Provider{
sizesSubFiles[i] = getLElong(fileEntryTable, 0x8);
strTableOffsets[i] = getLEint(fileEntryTable, 0x10);
zeroBytes[i] = Arrays.copyOfRange(fileEntryTable, 0x14, 0x18);
// Update position
rawBlockDataStart += 0x18;
}
//**********************************************************************************************************
// In here pointer in front of String table
@ -86,6 +221,8 @@ public class PFS0EncryptedProvider implements IPFS0Provider{
}
stringTbl[i] = (byte)currentByte;
}
// Update position
rawBlockDataStart += stringTableSize;
for (int i=0; i < filesCount; i++){
int j = 0;
@ -101,14 +238,21 @@ public class PFS0EncryptedProvider implements IPFS0Provider{
zeroBytes[i]
);
}
rawFileDataStart = -1;
}
@Override
public boolean isEncrypted() { return true; }
@Override
public String getMagic() { return magic; }
@Override
public int getFilesCount() { return filesCount; }
@Override
public int getStringTableSize() { return stringTableSize; }
@Override
public byte[] getPadding() { return padding; }
@Override
public long getRawFileDataStart() { return rawFileDataStart; }
@Override
public PFS0subFile[] getPfs0subFiles() { return pfs0subFiles; }
}

9
src/main/java/konogonka/Tools/PFS0/PFS0Provider.java
View file

@ -93,11 +93,18 @@ public class PFS0Provider implements IPFS0Provider{
raf.close();
}
@Override
public boolean isEncrypted() { return false; }
@Override
public String getMagic() { return magic; }
@Override
public int getFilesCount() { return filesCount; }
@Override
public int getStringTableSize() { return stringTableSize; }
@Override
public byte[] getPadding() { return padding; }
@Override
public long getRawFileDataStart() { return rawFileDataStart; }
@Override
public PFS0subFile[] getPfs0subFiles() { return pfs0subFiles; }
}

45
src/main/java/konogonka/ctraes/AesCtrDecryptSimple.java Normal file
View file

@ -0,0 +1,45 @@
package konogonka.ctraes;
import konogonka.LoperConverter;
/**
* Simplify decryption of the CTR
*/
public class AesCtrDecryptSimple {
private long realMediaOffset;
private byte[] IVarray;
private AesCtr aesCtr;
public AesCtrDecryptSimple(byte[] key, byte[] sectionCTR, long realMediaOffset) throws Exception{
this.realMediaOffset = realMediaOffset;
aesCtr = new AesCtr(key);
// IV for CTR == 16 bytes
IVarray = new byte[0x10];
// Populate first 8 bytes taken from Header's section Block CTR
System.arraycopy(LoperConverter.flip(sectionCTR), 0x0, IVarray, 0x0, 0x8);
}
public void skipNext(){
realMediaOffset += 0x200;
}
public void skipNext(long blocksNum){
if (blocksNum > 0)
realMediaOffset += blocksNum * 0x200;
}
public byte[] dectyptNext(byte[] enctyptedBlock) throws Exception{
updateIV(realMediaOffset);
byte[] decryptedBlock = aesCtr.decrypt(enctyptedBlock, IVarray);
realMediaOffset += 0x200;
return decryptedBlock;
}
// Populate last 8 bytes calculated. Thanks hactool project!
private void updateIV(long offset){
offset >>= 4;
for (int i = 0; i < 0x8; i++){
IVarray[0x10-i-1] = (byte)(offset & 0xff); // Note: issues could be here
offset >>= 8;
}
}
}

2
src/main/resources/FXML/NCA/NCATab.fxml
View file

@ -407,7 +407,7 @@
</AnchorPane>
<AnchorPane styleClass="customGrid" GridPane.columnIndex="2" GridPane.rowIndex="12">
<children>
<Label text="Rights ID (Ticket)" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<Label text="Rights ID (title.keys key-name to decrypt)" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<padding>
<Insets left="5.0" right="5.0" />
</padding>

6
src/main/resources/FXML/Settings/ListSelectorLayout.fxml
View file

@ -15,9 +15,9 @@
<ListView fx:id="listView" onKeyPressed="#listKeyPressed" HBox.hgrow="ALWAYS" />
<VBox spacing="5.0">
<children>
<Button mnemonicParsing="false" onAction="#removeRecord">
<Button mnemonicParsing="false" onAction="#removeRecord" styleClass="buttonRed">
<graphic>
<SVGPath content="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z" fill="#cc0101" />
<SVGPath content="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z" />
</graphic>
</Button>
</children>
@ -31,7 +31,7 @@
<TextField fx:id="newRecordValue" HBox.hgrow="ALWAYS" />
<Button mnemonicParsing="false" onAction="#addNewRecord">
<graphic>
<SVGPath content="M19,13H13V19H11V13H5V11H11V5H13V11H19V13Z" fill="#007f08" />
<SVGPath content="M19,13H13V19H11V13H5V11H11V5H13V11H19V13Z" />
</graphic>
</Button>
</children>

2
src/main/resources/FXML/Settings/SettingsLayout.fxml
View file

@ -112,7 +112,7 @@
<ButtonBar>
<buttons>
<Button fx:id="okBtn" mnemonicParsing="false" text="Ok" />
<Button fx:id="cancelBtn" mnemonicParsing="false" text="Cancel" />
<Button fx:id="cancelBtn" mnemonicParsing="false" styleClass="buttonRed" text="Cancel" />
</buttons>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />

50
src/main/resources/res/app_light.css
View file

@ -16,7 +16,7 @@
-fx-background-color: #ffffff;
-fx-border-color: #0d98ba;
-fx-background-radius: 5;
-fx-border-radius: 2;
-fx-border-radius: 5;
-fx-border-width: 2;
-fx-text-fill: #2c2c2c;
}
@ -59,13 +59,51 @@
-fx-border-width: 2;
-fx-text-fill: #ffffff;
}
// -========================+ Button RED =====================-
.buttonRed SVGPath{
-fx-fill: #e34234;
}
.buttonRed{
-fx-background-color: #ffffff;
-fx-border-color: #e34234;
-fx-background-radius: 5;
-fx-border-radius: 5;
-fx-border-width: 2;
-fx-text-fill: #2c2c2c;
}
.buttonRed:hover, .buttonRed:focused:hover{
-fx-background-color: #e34234;
-fx-border-color: #e34234;
-fx-background-radius: 5;
-fx-border-radius: 5;
-fx-border-width: 2;
-fx-text-fill: #ffffff;
}
.buttonRed:focused{
-fx-background-color: #d0d0d0;
-fx-border-color: #cc0605;
-fx-background-radius: 5;
-fx-border-radius: 5;
-fx-border-width: 2;
-fx-text-fill: #2c2c2c;
}
.buttonRed:pressed, .buttonRed:pressed:hover{
-fx-background-color: #cc0605;
-fx-border-color: #cc0605;
-fx-background-radius: 5;
-fx-border-radius: 5;
-fx-border-width: 2;
-fx-text-fill: #ffffff;
}
// -========================+ TextArea =====================-
.text-area{
-fx-background-color: transparent;
-fx-control-inner-background: #fefefe;
-fx-font-family: "Noto Mono";
-fx-background-radius: 3;
-fx-border-color: #ffdab9;
-fx-border-color: #0d98ba;
-fx-border-radius: 3;
-fx-border-width: 2;
-fx-text-fill: #2c2c2c;
@ -185,8 +223,8 @@
.tab-pane .tab SVGPath{
-fx-fill: #2c2c2c; // OK
}
.tab-pane .tab:selected SVGPath{
-fx-fill: #1dacd6; // OK
.tab-pane .tab:selected SVGPath, .tab-pane .tab:hover SVGPath{
-fx-fill: #ffffff;
}
.tab-pane .tab .label{
@ -237,7 +275,7 @@
-fx-background-position: center;
-fx-background-repeat: no-repeat;
-fx-background-radius: 3;
-fx-border-color: #ffdab9;
-fx-border-color: #0d98ba;
-fx-border-radius: 3;
-fx-border-width: 2;
}
@ -329,7 +367,7 @@
.titled-pane > .title
{
-fx-background-color: #fff8e7;
-fx-background-color: #efebe6;
-fx-background-insets: 0, 1, 2;
-fx-background-radius: 5 5 0 0, 4 4 0 0, 3 3 0 0;
-fx-padding: 3 11 5 11;