Generate a random alphanumerical String like a password or token.

RandomToken.java

package de.roamingthings.crypto;

public class RandomToken {
	private static final SecureRandom rand = new SecureRandom();

	public static String generateRandomToken(int bits) {
		return new BigInteger(bits, rand).toString(32);
	}

	public static main(String[] args) {
	  String randomToken = generateRandomToken(130);
		System.out.println(randomToken);
	}
}