Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!postgres!brand From: brand@postgres.uucp (Russell L. Brand) Newsgroups: sci.crypt Subject: Re: Unix Password Hacker Message-ID: <1232@pasteur.Berkeley.Edu> Date: 4 Mar 88 22:57:22 GMT References: <731@ddsw1.UUCP> <657@morningdew.BBN.COM> <24582@cca.CCA.COM> <281@csed-47.csed-1.UUCP> <4315@june.cs.washington.edu> Sender: news@pasteur.Berkeley.Edu Reply-To: brand@postgres.UUCP (Russell L. Brand) Distribution: na Organization: Postgres Research Group, UC Berkeley Lines: 20 In article <4315@june.cs.washington.edu> ka@june.cs.washington.edu (Kenneth Almquist) writes: >Suggestions like the one of read protecting the password file *and* >encrypting it raise a red flag for me. If the encryption scheme is good, >then read protecting the passwords is unnecessary. Similarly, if the >read protection on the password file really works, then encrypting the >passwords is a waste of time. NO! when you have let some have a root account to fix something (perhaps the password file itself) you don't want them to casually have access to all the passwords. Among other things some of your users probably have the same passwords on other machines. Further when a user of machine-1 wants an account on machine-2 we cna just send the encrypted passwords through less than perfectly trusted channels and give him an account with password on machine-2. if the paswords had to be unencrypted on machine-2 it would * very* inconvient to do things like this -wuthel