core/src/main/java/com/orientechnologies/orient/core/security/symmetrickey/OSymmetricKey.java
protected static String separateAlgorithm(final String cipherTransform) {
    String[] array = cipherTransform.split("/");

    if (array.length > 1)
      return array[0];

    return null;
  }
protected static String separateAlgorithm(final String cipherTransform) {
    String[] array = cipherTransform.split("/");

    if (array.length > 1)
      return array[0];

    return null;
  }
Returns the secret key algorithm portion of the cipher transformation.