Robert Rawlins - Think Blue wrote: > Now, I'm looking for a method to ensure that the file has not been modified > on the file system since the user uploaded it, the chances of it being > modified are exceptionally slim, I know, but the consequences of it having > happened are quite serious, so I need to be sure. > > I'm thinking about implementing some form of MD5 check sum on the files, > this sum will be saved to the database when the file is uploaded, and > checked against a newly generated checksum before the file is served back to > the user again. Does that sounds like a fair concept?
How are you going to guarantee the person that changes the file doesn't change the registered hash too? Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Check out the new features and enhancements in the latest product release - download the "What's New PDF" now http://download.macromedia.com/pub/labs/coldfusion/cf8_beta_whatsnew_052907.pdf Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:291077 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
