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Commit 7e84159f authored by Doug Zongker's avatar Doug Zongker Committed by Android Git Automerger
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am 36c051c7: am a695cbc9: am 0fe27cf5: make android_id random seed depend on... 

am 36c051c7: am a695cbc9: am 0fe27cf5: make android_id random seed depend on time as well as ro.serialno

Merge commit '36c051c7'

* commit '36c051c7':
  make android_id random seed depend on time as well as ro.serialno
parents 349250f3 36c051c7

packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java

+4 −9
Original line number Diff line number Diff line
@@ -222,16 +222,11 @@ public class SettingsProvider extends ContentProvider { 
            final String value = c.moveToNext() ? c.getString(0) : null;

            if (value == null) {

                final SecureRandom random = SecureRandom.getInstance("SHA1PRNG");

                String serial = SystemProperties.get("ro.serialno");

                if (serial != null) {

                    try {

                        random.setSeed(serial.getBytes("UTF-8"));

                    } catch (UnsupportedEncodingException ignore) {

                        // stick with default seed

                    }

                }

                String serial = SystemProperties.get("ro.serialno", "");

                random.setSeed(

                    (serial + System.nanoTime() + new SecureRandom().nextLong()).getBytes());

                final String newAndroidIdValue = Long.toHexString(random.nextLong());

                Log.d(TAG, "Generated and saved new ANDROID_ID");

                Log.d(TAG, "Generated and saved new ANDROID_ID [" + newAndroidIdValue + "]");

                final ContentValues values = new ContentValues();

                values.put(Settings.NameValueTable.NAME, Settings.Secure.ANDROID_ID);

                values.put(Settings.NameValueTable.VALUE, newAndroidIdValue);