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Userid and Password encryption / decryption

Userid and Password strings must be encrypted/decrypted with industry standard crypto functions. The symmetric key (passphrase) - needed to encrypt/decrypt the userid and password - is a string variable set by the caller of encrypt/decrypt methods described below.

I need 4 small components:

1) A simple C# GUI which has input fields for the Userid, the Password, and the Passphrase and a button labeled 'write key file'.

2) A class coded in C#, which takes the 3 input values and writes the encrypted Userid/Password into a key file to disc. The name of the key file is '[url removed, login to view]'

3) A class coded in C#, with a setter method for setting the Passphrase, and getter methods for the clear-text Userid/Password retrieval.

4) Same as 3), but coded in JAVA! Must be compatibel with the key file written by C#.

In order to test components 3) and 4), a simple command-line executable is good enough.

All source code must be handed out to me so that I can recompile and build all components myself.

I am not a security specialist, so if you can't make sense of my description above, maybe you ar not the right person to bid.

This project is very urgent!

Taidot: C# -ohjelmointi, Java

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About the Employer:
( 16 reviews ) Uttwil, Switzerland

Projektin tunnus: #504982

Myönnetty käyttäjälle:

justj2ee

I am interested!

30 $ USD 0 päivässä
(21 arvostelua)
4.9
meucica

Hello, Check the details in private message.

80 $ USD 0 päivässä
(2 arvostelua)
2.4

5 freelanceria on tarjonnut keskimäärin 74 $ tähän työhön

Yurilad

I can help you

100 $ USD 7 päivässä
(4 arvostelua)
3.8
codecontact

Hi, I have good knowledge and work experience in VB.NET,ASP.NET,Ajax,C#,SQL 2005,PHP technologies. We can finish your work ASAP for your valuable price. Provide us your contact details.

100 $ USD 0 päivässä
(0 arvostelua)
0.0
ThunderD

Interested in your project and willing to help.

60 $ USD 2 päivässä
(0 arvostelua)
0.0