code: private static String getSalt(byte[] value) {
  
          byte[] salt = new byte[Generate.SALT_BYTES];
          System.arraycopy(value, 0, salt, 0, salt.length);
          return ByteArray.toBase64(salt);
      }
docs: Retrieves the salt from the given value.
  
  @param value The overall password hash value.
  @return The salt, which is the first {@value Generate#SALT_BYTES} bytes of the