kdeconnect-android/src/org/kde/kdeconnect/Helpers/RandomHelper.java

package org.kde.kdeconnect.Helpers;


import java.security.SecureRandom;

public class RandomHelper {
    public static SecureRandom secureRandom = new SecureRandom();

    private static final char[] symbols = ("ABCDEFGHIJKLMNOPQRSTUVWXYZ"+
                                           "abcdefghijklmnopqrstuvwxyz"+
                                           "1234567890").toCharArray();


    public static String randomString(int length) {
        char[] buffer= new char[length];
        for (int idx = 0; idx < length; ++idx) {
            buffer[idx] = symbols[secureRandom.nextInt(symbols.length)];
        }
        return new String(buffer);
    }

}