Using Salt in Spring Security

I am using Spring Security. I want to store salt values for each and every user in the database.

Here is my database

User
-id
-username
-password
-salt

On accessing a particular URL, the default login form will be displayed.

@Override
    protected void configure(HttpSecurity http) throws Exception {

          http.authorizeRequests().antMatchers("/userHomePage").authenticated().and().formLogin()
          .and().exceptionHandling().accessDeniedPage("/Access_Denied");


    }

Here is my Java code.

public class SecurityCheck extends WebSecurityConfigurerAdapter{

@Autowired
private DataSource dataSource;

private String usernameSearch="select username,password,account_status from user where username=?";
private String roleSearch="select username,usertype from user where username=?";

@Autowired
private RequestHandler requestHandler;

@Override
protected void configure(AuthenticationManagerBuilder authenticate)
        throws Exception {

    authenticate.jdbcAuthentication().dataSource(dataSource).usersByUsernameQuery(usernameSearch).
    authoritiesByUsernameQuery(roleSearch);

}

@Override
protected void configure(HttpSecurity http) throws Exception {

      http.authorizeRequests().antMatchers("/userHomePage").authenticated().and().formLogin()
      .and().exceptionHandling().accessDeniedPage("/Access_Denied");


}

}

My question is, what changes should I make for achieving the results ?
How do I first fetch the salt for that particular user and use in the authenticationManagerBuilder?
OR any other way to do it ?

Security vulnerability analysis tool for Python command line application?

I’d like to analyze if my Python command line application suffers from known security vulnerabilities (preferably with a tool written in Python, free Python cross-platform for Ubuntu Linux, Mac OS X, Windows 10). Right now I am using the static analyzer bandit which performs analysis of the abstract syntax tree. I know another static analyzer pyt. However as far as I know it is meant to be run with a web framework specific adapter. Is pyt suitable/adaptable for/to command line applications as well? Does someone know other Python security vulnerability analysis tools?

Display hashed security answers in front end

My web app requires the users to provide secret questions and answers. The users can’t pick a question from predefined ones, but have to write their own questions and (of course) answers.

For security reasons I then hash the answers before storing them in the data base. => this is when my problem occurs. I want to display the information (questions and answers) to the users on their profile pages, but – as the answers are hashed – I am not able to ever display them in plain text.

So the question is: how would you solve this for clarity and good usability?

My current approach is to display the questions and answers in an input field. If a user has already answered one of the questions, the answer input gets disabled and grayed out. The answer input contains no text (as it would only contain the “gibberish” hash string) => A user then has to make a change to the related question first, before he can edit the answer input.

UX problem secret answers

But I am not sure, whether this is good usability design and unambiguous?

Security & Compliance Centre – Rentention start based on column

In the security and compliance centre in Office365 when creating a retention policy I can see the option to apply a retention action x years from Creation date, Modified date and Event.

Is it possible to apply the retention action based on a date in a column within a SharePoint site library. For example I have a date column in a library called “Contract End Date” and I want the retention to be applied x years after this date.

Is this possible?

Contribution to Return – from security to portfolio

I have the Contribution to Return (CTR) of all securities in a portfolio for a number of days. I would like to compute the portfolio and securities total return over this period.

The total return of the portfolio for day $t$ can be computed as $Port_{t} = sum_{i} CTR_{i}$

The portfolio’s total return over a number of days can then be computed as $Port_{t, t+10} = prod_{i} (1+Port_{i})$

How would you compute security $CTR_{i, t, t+10}$ (the total contribution to return of security i) over the period in such a way that $sum_{i} CTR_{i,t,t+10} = Port_{t, t+10}$?