Password security - Another idea

Doug Gwyn gwyn at smoke.BRL.MIL
Wed Jan 11 04:39:46 AEST 1989


In article <2362 at cuuxb.ATT.COM> dlm at cuuxb.UUCP (Dennis L. Mumaugh) writes:
>The password encryption alogithm needs strenghtening!  RSA or DES
>or any other encryption scheme will work if the key space is
>expanded much more.

That's too generous -- the cryptosystem must also be inherently "strong".
Certainly if the key space is small enough, exhaustive search is possible,
but the converse is not necessarily true!

In reality, crackers are as unlikely to cryptanalyze the password
encryption system as burglars are to pick your lock.  They will use
force instead.



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