Tagged Questions

1
vote
2answers
289 views

What is the safest way to store a password in a single file?

I've been reading about it. This article helped me a lot. But the more I read the more complicated it seems. For example: Is it better to use bcrypt, or PBKDF2, sha2 or something else for the salt? ...
4
votes
1answer
158 views

Saved passwords (use case)

I have a program in which a user enters a password, and the user data is stored encrypted using AES-128. The data and passwords must be stored together. Both the data and the password are encrypted ...
5
votes
1answer
354 views

Practices for storing username/password in Web applications

I have read the following question: Storing password in Java application but I don't find the answers useful for my case. So here is my question somehow related to that. I have a Java Web application ...
-1
votes
1answer
167 views

Number of time steps in TOTP [closed]

I am implementing TOTP in JAVA.Formula for number of time steps is T = (Current Unix time - T0) รท X.I have taken Current Unix time:long unixTime = System.currentTimeMillis()/1000L(1335246034) and T0 ...
4
votes
3answers
1k views

Reverse-engineering one-time passwords for two-factor authentication systems

Given a one-time password generator that is time-based (such as Google Authenticator), how many instances of (time, PIN) pairs would one need to significantly weaken the algorithm to a point where one ...
3
votes
1answer
348 views

Best security algorith for storing passwords [duplicate]

Possible Duplicate: Which password hashing method should I use? I want the best cryptography algorithm for storing passwords in database, which one should I use and how can I implement ...
17
votes
3answers
4k views

Deleting a Java Object securely

I know that in order to delete a Java object I should use character array instead of String, since I can safely erase (rewrite the character array with other data) its content. This seems not to be ...
4
votes
3answers
3k views

What password-based encryption to use with standard Java 6?

Which password-based encryption method should I use in Java 6? It should be as strong as possible, but work with the default security policy file (not the export restricted one which you have to ...
4
votes
2answers
1k views

Reference implementation of C# password hashing and verification

Does anyone have a reference implementation (ideally 3rd party certified, or government approved) way one-way hash a password for C# and or Java? Ideally,I'd like to see something that includes a ...
3
votes
2answers
474 views

BlackBerry client authenticating to Java Web Service

I already asked this question at StackOverflow here: http://stackoverflow.com/questions/4970681/blackberry-app-security and was directed to this site, can anyone pitch in as to how I can solve this ...