Android How to - Generates a random 160-bit-value and returns it as hex-encoded string

Question

We would like to know how to generates a random 160-bit-value and returns it as hex-encoded string.

Answer

import java.math.BigInteger;
import java.security.SecureRandom;
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public class Main{
  
  /**
   * Generates a random 160-bit-value and returns it as hex-encoded string.
   * @return 160 bit hex encoded random
   */
  public static String generateSalt() {
    SecureRandom random = new SecureRandom();
    byte[] salt =  random.generateSeed(20);
    return String.format("%040x", new BigInteger(1, salt));
  }
}