Encryption Problem

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Hi
Problem. Generate valuable 'plain' data on Mach A. Need to write encrypted
version to CD which gets inputed to database on mach B.
Want the data to be encrypted in the table so it cannot be eyeballed to see
data.
'Plain' data gets inputted by application to Mach B, if valid match Mach B
takes action.
So...
Problem is that RijndaelManaged is too smart for the job seeing that gives a
unique encryption for the same plain data each time it is invoked.
ie I can't encrypt the plain text input on Machine B and compare it to the
database string that was originally generated on Mach A because they are two
different strings.
Obviously sequentially decrypting each item in the database table for a
match check is out of the question.
I realise I am asking for a weakened algorithm here but it is only the
viewing of the data by personnel of low end skills that I am trying to
protect against.

TIA
Bob


.

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