Are you using the latest version of FLL? It allows "to specify padding, key size, block size, and initialization vector (IV) where applicable (these changes allow compatibility with .NET and other encryption systems as well as the ability to adhere specifically to the AES specification as set out in the FIPS 197 Specification)"
http://www.sweetpotatosoftware.com/SPSBlog/2009/08/09/MajorVFPEncryptionUpdate.aspx>I have an VFP written application that using VFPEncryption.fll to do AES128 encryption to my SQL Server data. My problem is that, my .NET application unable to decrypt it back original text. I suspected the vector defined is not correct. Anyone can help?
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>Thank you
--sb--