private byte[] extractSalt(String encPass) {
String encPassNoLabel = encPass.substring(6);
byte[] hashAndSalt = Base64.decode(encPassNoLabel.getBytes());
int saltLength = hashAndSalt.length - SHA_LENGTH;
byte[] salt = new byte[saltLength];
System.arraycopy(hashAndSalt, SHA_LENGTH, salt, 0, saltLength);
return salt;
}
