Skip to content

Fixed v3 verification #137

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Fixed v3 verification #137

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
40 changes: 40 additions & 0 deletions app/src/main/java/toolkit/coderstory/CorePatchForT.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,12 @@
import android.content.pm.Signature;

import java.io.PrintWriter;
import java.io.RandomAccessFile;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;

import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XC_MethodReplacement;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.callbacks.XC_LoadPackage;
Expand Down Expand Up @@ -90,6 +93,43 @@ protected void afterHookedMethod(MethodHookParam param) {
if (utils != null) {
deoptimizeMethod(utils, "canJoinSharedUserId");
}

if (prefs.getBoolean("digestCreak", true)) {
XposedBridge.log("I/" + MainHook.TAG + " Digest Creak enabled");
var apkSigningBlockClass = findClass("android.util.apk.ApkSigningBlockUtils", loadPackageParam.classLoader);
var signatureInfoClass = findClass("android.util.apk.SignatureInfo", loadPackageParam.classLoader);
findAndHookMethod(
apkSigningBlockClass,
"parseVerityDigestAndVerifySourceLength",
byte[].class,
long.class,
signatureInfoClass,
new XC_MethodReplacement() {
@Override
protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
XposedBridge.log("I/" + MainHook.TAG + " Digest Creak: parseVerityDigestAndVerifySourceLength called");
byte[] data = (byte[]) param.args[0];
int kRootHashSize = 32;
return Arrays.copyOfRange(data, 0, kRootHashSize);
}
}
);

findAndHookMethod(
apkSigningBlockClass,
"verifyIntegrityForVerityBasedAlgorithm",
byte[].class,
RandomAccessFile.class,
signatureInfoClass,
new XC_MethodReplacement() {
@Override
protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
XposedBridge.log("I/" + MainHook.TAG + " Digest Creak: verifyIntegrityForVerityBasedAlgorithm called");
return null;
}
}
);
}
}

Class<?> getParsedPackage(ClassLoader classLoader) {
Expand Down