topic Re: Password Encryption in Operating System - HP-UX

Password Encryption

Helmuth Viets — Tue, 26 Nov 2002 20:57:01 GMT

Hi,

ist there information available concerning the encryption of the standard password setting?

Thanks in Advance

Re: Password Encryption

Christopher Caldwell — Tue, 26 Nov 2002 20:59:39 GMT

$man 3 crypt

Re: Password Encryption

Sridhar Bhaskarla — Tue, 26 Nov 2002 22:20:15 GMT

crypt and a handy tool /usr/lbin/makekey. If you want to generate an encrypted password, you can use

mypasswd2x|/usr/lbin/makekey

Put the output of the above in the password field of /etc/passwd and your password will be mypasswd.

the last 2 characters in this 10 char input together is called salt. man makekey for more details.

-Sri

Re: Password Encryption

Sridhar Bhaskarla — Tue, 26 Nov 2002 22:21:22 GMT

...correction..

echo mypasswd2x|/usr/lbin/makekey

...

Re: Password Encryption

Darrell Allen — Wed, 27 Nov 2002 04:01:26 GMT

makekey will return the same 13 character string as found in the encrypted password field in /etc/password providing the same salt and password are used. If the password is more than 8 characters, only the first 8 characters are used for the encryption. If the password is less than 8 characters, you need to pad the password with enough "nulls" to make the length 8 characters.

Darrell

Re: Password Encryption

Darrell Allen — Wed, 27 Nov 2002 19:53:21 GMT

I should have included an example with null character padding of a password that is less than 8 characters...

echo "testing\000Ct" | /usr/lbin/makekey

In this example, the 7 character password is "testing". I padded the password with 1 null character "\000" and specified "Ct" as the salt.

Darrell

Re: Password Encryption

Helmuth Viets — Wed, 27 Nov 2002 21:54:03 GMT

Hello

Thanks to everybody who answered. My question/problem ist completely solved.

Helmuth