This kinda smells of homework and you didn't show your efforts so far... so no code examples for now :)

Concatenate the three "bits of data" in some way (e.g. join), calculate some hash function over it (e.g. MD5 using Digest::MD5) and extract an integer from this hash (e.g. unpack). Calculate the rest modulo 10000 (perlop, look for %) and use sprintf to get a 4-digits zero-padded representation -- you're done.

Note that this does not guarantee that the combinations from 0000 to 9999 are covered fairly. Well, I actually don't know... I'm just not able/willing to demonstrate it.

Flavio
perl -ple'$_=reverse' <<<ti.xittelop@oivalf

Io ho capito... ma tu che hai detto?

In reply to Re: Need a wait to generate a 4 digit "PIN" number by polettix
in thread Need a wait to generate a 4 digit "PIN" number by jaiello

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