Project Description:
I am looking for someone who can program for me a small function for electronic wallet of smart card using java. The program is very simple. I would like the terminal to authenticate the smart card by requesting a challenge, the smart card would respond with a challenge which can be a random value. Then, using the challenge from the smart card, a debit command can be issued to a different smart card (perhaps a bank; basically a different instance of the same constructor), the debit command is executed and responded with a cryptogram. the cryptogram is calculated using the amount to be debited as well as the 8-byte challenge; a MAC of triple des and padding. finally, the credit command which is to add money to the wallet is ONLY executed if the cryptogram is correct. I have the base program of the electronic wallet. I just need the two functions for calculating the challenge and the calculation of the cryptogram. Budget $30. Deadline 13/3
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State Date: Wed, 10 Mar 2010 18:29:12 -0500
Posted By: BinGhanem
Budget: $30 - $250
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