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Operating Systems
AIX
Encrypting password
Post 58477 by Justman on Monday 22nd of November 2004 04:39:30 PM
11-22-2004
Encrypting password
I have a strange question for someone regarding the AIX 5.2 environment.
Here is the scenerio:
I have a script that is running a menu full of options.
1. I like food
2. I don't like food
Enter Option:_
Enter userID:_
Enter Password:_
(The menu is conversational only so go with me on this)
The user already has an ID on the system and is able to authenticate but I want to track the user and ensure that it is indeed that user that answered.
I need to pass the userid and passwd to the /etc/security/passwd file to ensure that it is this user.
The problem is that the passwd is encrypted. Since I can not decrypt it can I encrypt it using the DES that AIX is using and then search for the match?
Any other ideas?
Here is the scenerio:
I have a script that is running a menu full of options.
1. I like food
2. I don't like food
Enter Option:_
Enter userID:_
Enter Password:_
(The menu is conversational only so go with me on this)
The user already has an ID on the system and is able to authenticate but I want to track the user and ensure that it is indeed that user that answered.
I need to pass the userid and passwd to the /etc/security/passwd file to ensure that it is this user.
The problem is that the passwd is encrypted. Since I can not decrypt it can I encrypt it using the DES that AIX is using and then search for the match?
Any other ideas?
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LEARN ABOUT XFREE86
pwconv
pwconv(1M) System Administration Commands pwconv(1M) NAME
pwconv - installs and updates /etc/shadow with information from /etc/passwd SYNOPSIS
pwconv DESCRIPTION
The pwconv command creates and updates /etc/shadow with information from /etc/passwd. pwconv relies on a special value of 'x' in the password field of /etc/passwd. This value of 'x' indicates that the password for the user is already in /etc/shadow and should not be modified. If the /etc/shadow file does not exist, this command will create /etc/shadow with information from /etc/passwd. The command populates /etc/shadow with the user's login name, password, and password aging information. If password aging information does not exist in /etc/passwd for a given user, none will be added to /etc/shadow. However, the last changed information will always be updated. If the /etc/shadow file does exist, the following tasks will be performed: Entries that are in the /etc/passwd file and not in the /etc/shadow file will be added to the /etc/shadow file. Entries that are in the /etc/shadow file and not in the /etc/passwd file will be removed from /etc/shadow. Password attributes (for example, password and aging information) that exist in an /etc/passwd entry will be moved to the corre- sponding entry in /etc/shadow. The pwconv command can only be used by the super-user. FILES
/etc/opasswd /etc/oshadow /etc/passwd /etc/shadow ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
passwd(1), passmgmt(1M), usermod(1M), passwd(4), attributes(5) DIAGNOSTICS
pwconv exits with one of the following values: 0 SUCCESS. 1 Permission denied. 2 Invalid command syntax. 3 Unexpected failure. Conversion not done. 4 Unexpected failure. Password file(s) missing. 5 Password file(s) busy. Try again later. 6 Bad entry in /etc/shadow file. SunOS 5.10 9 Mar 1993 pwconv(1M)