http://avvoblog.com/2007/06/17/visamastercarddiscover/ Find a Lawyer. Free Legal Advice. Lawyer Ratings. Wed, 08 Feb 2012 03:04:03 +0000 hourly 1 http://wordpress.org/?v= http://avvoblog.com/2007/06/17/visamastercarddiscover/comment-page-1/#comment-116 Justin Mon, 18 Jun 2007 05:05:15 +0000 http://avvoblog.com/2007/06/17/visamastercarddiscover/#comment-116 Just a quick note from the developer.. Avvo is using one-way encryption on the card number. This is also known as irreversible encryption because you can't (mathematically) get the original credit card number back again. For example, if your CC number is 4111 1111 1111 1111 and the encrypted form is ABC123, if we ever see "ABC123" again we know that we have seen the card before, but we don't know what the actual number was. Make sense? Just a quick note from the developer.. Avvo is using one-way encryption on the card number. This is also known as irreversible encryption because you can’t (mathematically) get the original credit card number back again. For example, if your CC number is 4111 1111 1111 1111 and the encrypted form is ABC123, if we ever see “ABC123″ again we know that we have seen the card before, but we don’t know what the actual number was. Make sense?

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