package android.telecom;
+import android.os.AsyncTask;
+
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.IllegalFormatException;
public static final boolean WARN = isLoggable(android.util.Log.WARN);
public static final boolean ERROR = isLoggable(android.util.Log.ERROR);
+ private static MessageDigest sMessageDigest;
+
private Log() {}
+ public static void initMd5Sum() {
+ new AsyncTask<Void, Void, Void>() {
+ @Override
+ public Void doInBackground(Void... args) {
+ MessageDigest md;
+ try {
+ md = MessageDigest.getInstance("SHA-1");
+ } catch (NoSuchAlgorithmException e) {
+ md = null;
+ }
+ sMessageDigest = md;
+ return null;
+ }
+ }.execute();
+ }
+
public static boolean isLoggable(int level) {
return FORCE_LOGGING || android.util.Log.isLoggable(TAG, level);
}
}
private static String secureHash(byte[] input) {
- MessageDigest messageDigest;
- try {
- messageDigest = MessageDigest.getInstance("SHA-1");
- } catch (NoSuchAlgorithmException e) {
- return null;
+ if (sMessageDigest != null) {
+ sMessageDigest.reset();
+ sMessageDigest.update(input);
+ byte[] result = sMessageDigest.digest();
+ return encodeHex(result);
+ } else {
+ return "Uninitialized SHA1";
}
- messageDigest.update(input);
- byte[] result = messageDigest.digest();
- return encodeHex(result);
}
private static String encodeHex(byte[] bytes) {