Free Lunch 2010: Why Public Algorithms Beat the Alternative is an article I just wrote for CSO.   The article is online athttp://www.csoonline.com/article/518263/Free_Lunch_2010_Why_Public_Algorithms_Beat_the_Alternative 

In it, I explain why vendors should be dropped when they refuse to reveal their crypto algorithms. 

Organizations that are serious about information security should never utilize the services of a cryptography firms that refuses to share the inner workings of their crypto algorithms.

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