[solved] Password hashing Post: 302705217

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Operating Systems Solaris [solved] Password hashing Post 302705217 by bitlord on Monday 24th of September 2012 01:41:40 PM

09-24-2012

Registered User

[solved] Password hashing

Hello,
I'm having an issue with my password hashing. In /etc/shadow all the passwords hashes start with $1$. The security people want me to change it so the password hash starts with $5$ or $6$. So this is what I did to fix this.
I changed CRYPT_DEFAULT for 1 to 6

Code:

 CRYPT_DEFAULT=6

When I create a new account, the account uses the new password hashing method, but when I change an existing accounts password it still uses the old method. I'm thinking that I need to restart something but I don't know what.

Any help would be great.

---------- Post updated at 01:04 PM ---------- Previous update was at 12:04 PM ----------

---------- Post updated at 01:41 PM ---------- Previous update was at 01:04 PM ----------

Ok I have the answer now.

To set the password with the new hash you have to remove the old password 1st. You do that by using the -d option.

Code:

passwd -d root
passwd root
New Password:
re-enter new password:
password: password successfully changed for root

Now the password hash starts with $6$

I hope this helps someone

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LEARN ABOUT OSF1

dxchpwd

dxchpwd(1X)															       dxchpwd(1X)

NAME

       dxchpwd - Create or change password program

SYNOPSIS

       dxchpwd

       dxchpwd -r  | -l

       dxchpwd [-r  | -l] -q

       dxchpwd [-r  | -l] -u  username

OPTIONS

       If dxchpwd is invoked without any options, it is assumed that the current user's password is to be changed.  The following options are also
       accepted: Tells dxchpwd that the password change is to be done for a Local user. This can be combined with the -u and  -q  options.   Tells
       dxchpwd	that the password change is to be done for a NIS user. This can only be done from a NIS master and can be combined with the -u and
       -q options.  Tells dxchpwd to query the user for the user name of the account whose password is to be changed.	Tells  dxchpwd	to  change
       this user's password.

DESCRIPTION

       The  dxchpwd  command lets you change your password.  When you invoke the dxchpwd command, the program prompts you for the old password and
       then for the new password.  Next, the program asks you for the new password again, to verify that you have typed it correctly.	Note  that
       the passwords are not displayed on the screen.

       Your new password must meet the length requirements specified by the authorization database for the user whose password is being changed.

       If  your system is running with enhanced security, you may have to choose a password from a list of randomly generated passwords or you may
       be prohibited from changing your password until its minimum lifetime has expired, as specified in the authorization database.

EXAMPLES

       The following example requests that the password be changed for user smith: dxchpwd -u smith

FILES

       Password file Protected Password Database dxchpwd executable

SEE ALSO

       X(1X), xdm(1X), passwd(1)

																       dxchpwd(1X)