I could do this with a basic timestamp that's unencrypted, but I know
that that would be very easy to crack.
John McGowan wrote:
I need to solve the following problem...
Take a string and Encrypt is using Cold Fusion.
use that encrypted string in a URL link to a Witango server
Witango server decrypts to find the original string.
The original string is just a timestamp, and if the timestamp falls
within an acceptable window relative to the current time, we allow the
user to proceed. allowing for minor differences in time on the two
web servers.
Here are the following assumptions.
1. both the cf server and the Witango server will have the encryption
and decryption password locally hard coded.
2. the window will be something like 1 day so that if someone trys to
bookmark the link containing the encrypted timestamp they won't be
able to use it a day later...forcing them to go back to the cf site to
get a new link.
I looked into the encrypt and decrypt functions available in CF, but
the document doesn't mention what algorithm they use, so I have no
idea if they will be compatible with and of the decryption routines
available in Witango.
Ideas?
/John
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