Many 3-D documents are available for download by accepting a license agreement. The CAVV algorithm is documented in Appendix D of 3-D Secure(TM) Functional Requirements, Access Control Server, 70002-01.
 
Today the following link will display a page from which 3-D Secure documents can be downloaded:
 
http://international.visa.com/fb/paytech/secure/main.jsp
 
If you're reading an archived version of this message and the above link does not work, try going to http://corporate.visa.com and click on "Vendors & Merchants". From the resulting page, you should find a link that takes you to documentation for 3-D Secure.
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Tony Lewis ([EMAIL PROTECTED])
Chief Systems Architect, Application Architecture & Standards
Visa International Service Association
 

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