Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things

Re: Quantitative Change instead of Boolean

by esskar (Deacon)
on Jun 29, 2006 at 05:55 UTC ( #558223=note: print w/ replies, xml ) Need Help??

in reply to Quantitative Change instead of Boolean

just for me to understand:

you said "Minus a certain amount of fudging to make sure things like revolving web ads don't mess me up."

how do you do this using MD5. i mean, changing one bit in the data will result in a totally different MD5 digest, won't it?

Comment on Re: Quantitative Change instead of Boolean
Replies are listed 'Best First'.
Re^2: Quantitative Change instead of Boolean
by ikegami (Pope) on Jun 29, 2006 at 07:10 UTC
    He always removes the ads before using MD5. If the only difference between the page and its previously downloaded version are the ads, the MD5 digest will match. The pages aren't being compared; the pages without the ads are being compared.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://558223]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others having an uproarious good time at the Monastery: (6)
As of 2015-11-26 01:01 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (695 votes), past polls