Examples with Signature android.content.pm.Signature used on opensource projects

Example 76 with Signature

use of android.content.pm.Signature in project android_frameworks_base by DirtyUnicorns.

the class NetworkPolicyManager method isUidValidForPolicy.

/**
     * Check if given UID can have a {@link #setUidPolicy(int, int)} defined,
     * usually to protect critical system services.
     */
@Deprecated
public static boolean isUidValidForPolicy(Context context, int uid) {
    // first, quick-reject non-applications
    if (!UserHandle.isApp(uid)) {
        return false;
    }
    if (!ALLOW_PLATFORM_APP_POLICY) {
        final PackageManager pm = context.getPackageManager();
        final HashSet<Signature> systemSignature;
        try {
            systemSignature = Sets.newHashSet(pm.getPackageInfo("android", GET_SIGNATURES).signatures);
        } catch (NameNotFoundException e) {
            throw new RuntimeException("problem finding system signature", e);
        }
        try {
            // reject apps signed with platform cert
            for (String packageName : pm.getPackagesForUid(uid)) {
                final HashSet<Signature> packageSignature = Sets.newHashSet(pm.getPackageInfo(packageName, GET_SIGNATURES).signatures);
                if (packageSignature.containsAll(systemSignature)) {
                    return false;
                }
            }
        } catch (NameNotFoundException e) {
        }
    }
    // nothing found above; we can apply policy to UID
    return true;
}

Example 77 with Signature

use of android.content.pm.Signature in project android_frameworks_base by AOSPA.

the class Utils method getCertFingerprintsFromPackageManager.

/**
     * Returns the normalized sha-256 fingerprints of a given package according to the Android
     * package manager.
     */
public static List<String> getCertFingerprintsFromPackageManager(String packageName, Context context) throws NameNotFoundException {
    Signature[] signatures = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES).signatures;
    ArrayList<String> result = new ArrayList<String>(signatures.length);
    for (Signature sig : signatures) {
        result.add(computeNormalizedSha256Fingerprint(sig.toByteArray()));
    }
    return result;
}

Example 78 with Signature

use of android.content.pm.Signature in project android_frameworks_base by AOSPA.

the class ServiceWatcher method getSignatureSets.

public static ArrayList<HashSet<Signature>> getSignatureSets(Context context, List<String> initialPackageNames) {
    PackageManager pm = context.getPackageManager();
    ArrayList<HashSet<Signature>> sigSets = new ArrayList<HashSet<Signature>>();
    for (int i = 0, size = initialPackageNames.size(); i < size; i++) {
        String pkg = initialPackageNames.get(i);
        try {
            HashSet<Signature> set = new HashSet<Signature>();
            Signature[] sigs = pm.getPackageInfo(pkg, PackageManager.MATCH_SYSTEM_ONLY | PackageManager.GET_SIGNATURES).signatures;
            set.addAll(Arrays.asList(sigs));
            sigSets.add(set);
        } catch (NameNotFoundException e) {
            Log.w("ServiceWatcher", pkg + " not found");
        }
    }
    return sigSets;
}

Example 79 with Signature

use of android.content.pm.Signature in project android_frameworks_base by AOSPA.

the class AccountManagerService method calculatePackageSignatureDigest.

private byte[] calculatePackageSignatureDigest(String callerPkg) {
    MessageDigest digester;
    try {
        digester = MessageDigest.getInstance("SHA-256");
        PackageInfo pkgInfo = mPackageManager.getPackageInfo(callerPkg, PackageManager.GET_SIGNATURES);
        for (Signature sig : pkgInfo.signatures) {
            digester.update(sig.toByteArray());
        }
    } catch (NoSuchAlgorithmException x) {
        Log.wtf(TAG, "SHA-256 should be available", x);
        digester = null;
    } catch (NameNotFoundException e) {
        Log.w(TAG, "Could not find packageinfo for: " + callerPkg);
        digester = null;
    }
    return (digester == null) ? null : digester.digest();
}

Example 80 with Signature

use of android.content.pm.Signature in project weiciyuan by qii.

the class Utility method isCertificateFingerprintCorrect.

//if app's certificate md5 is correct, enable Crashlytics crash log platform, you should not modify those md5 values
public static boolean isCertificateFingerprintCorrect(Context context) {
    try {
        PackageManager pm = context.getPackageManager();
        String packageName = context.getPackageName();
        int flags = PackageManager.GET_SIGNATURES;
        PackageInfo packageInfo = pm.getPackageInfo(packageName, flags);
        Signature[] signatures = packageInfo.signatures;
        byte[] cert = signatures[0].toByteArray();
        String strResult = "";
        MessageDigest md;
        md = MessageDigest.getInstance("MD5");
        md.update(cert);
        for (byte b : md.digest()) {
            strResult += Integer.toString(b & 0xff, 16);
        }
        strResult = strResult.toUpperCase();
        //debug
        if ("DE421D82D4BBF9042886E72AA31FE22".toUpperCase().equals(strResult)) {
            return false;
        }
        //relaease
        if ("C96155C3DAD4CA1069808FBAC813A69".toUpperCase().equals(strResult)) {
            return true;
        }
        AppLogger.e(strResult);
    } catch (NoSuchAlgorithmException ex) {
        ex.printStackTrace();
    } catch (PackageManager.NameNotFoundException ex) {
        ex.printStackTrace();
    }
    return false;
}