Validate given Password Encryption in Database

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We have one application it has in Java .

they have followed to validate user ,For Encryption Password validating like this :

Java

public String digest(String str2Digest)
{
    FixedStringSaltGenerator fixedStringSaltGenerator = new FixedStringSaltGenerator();
    fixedStringSaltGenerator.setSalt(str2Digest+"XXXX-XX");
    StandardStringDigester digester = new StandardStringDigester();
    digester.setAlgorithm("SHA-512");
    digester.setIterations(10024);
    digester.setSaltGenerator(fixedStringSaltGenerator);
    return digester.digest(str2Digest);
}

now i have created a Service in .net ,my service also need same validation in .net.

Can you suggest best way for the above code in .net

[Edit member="Tadit"]
Added pre tags.
[/Edit]

Posted 2-Sep-14 22:18pm

venuchary

Updated 2-Sep-14 22:30pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Rocker-Star 3-Sep-14 4:37am

Personally, i would not be interested in creating a duplicate validate method, if you have an API from the 3rd party vendor you could use that.

ZurdoDev 3-Sep-14 8:24am

Just google SHA-512 c# examples.

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kbrandwijk · Answer 1 · 2014-09-03T02:25:00

Solution 1

Have a look at http://brianreiter.org/2011/05/19/secure-password-hashing-in-c/[^], which does SHA-512 hashing with iterations and salt.

Posted 3-Sep-14 2:25am

kbrandwijk

Comments

venuchary 4-Sep-14 2:32am

Yes If it is Two ends has .Net not a problem but here situation is Encrypting done in java . In .Net I need to do my input pwd is Encrypting or Decrypting the existing pwd in database.

kbrandwijk 4-Sep-14 4:53am

I don't understand your problem. It doesn't matter if the existing password was encrypted in Java. If you use the same algorithm in .NET, the same strength, the same salt, the same number of iterations, then you should also end up with the same password, and you can also decrypt it.

venuchary 10-Sep-14 7:16am

@kbrandwijk :- i too feel it was Simple, but real scenario it generating different password.
used same SHA-512 algorithm , same strength ,same no of iterations .
i followed this link :
http://www.programminginterviews.info/2012/05/how-to-store-user-passwords-using.html

for ex: i have given to "abc " is Pwd it encryption code is
mlzwReJaNT8Y6ep+3x/+iQVc+IhYom3+i6CLM85GjPYD6f127Le8px3rVj/qFiCg9XBZcTSGN0QZ57sMB6tbbg==

So u would try in .Net