8.2.x/tools/README.mkpasswd

$Id$

This is documentation for the mkpasswd.c included in ircd-hybrid-8.

This version of mkpasswd can create both DES and MD5 passwords, with
either randomly generated or user provided salts.  

Options:
-6 - Create a SHA-512 password
-5 - Create a SHA-256 password
-m - Create an MD5 password
-b - Create a BlowFish password
-d - Create a DES password
-e - Create an Extended DES password
-l - Specify the length of a random MD5 salt
-r - Specify a number of rounds for a BlowFish or Extended DES password
-p - Specify the plaintext password at the command line
-s - Specify the salt at the command line
-R - Specify a raw salt passed directly to crypt()
-h - Get help

Without the presence of any parameters, it'll behave like the old mkpasswd,
creating a DES password with a randomly generated salt and prompting for
the password (without echo).

A DES salt is a pair of alphanumeric characters ('.' and '/' are permitted
as well), such as 'a4' or 'Td'.

An MD5 salt consists of up to 16 (though most implementations limit you to
8) alphanumeric characters (plus '.' and '/'),
such as 'tGd' or 'J6d4dfG'.

Known bugs:
Blowfish (on OpenBSD) is not yet supported
The encryption algorithms supported depend on your system's crypt()
  implementation.
The maximum length of an MD5 salt is limited to your systems crypt()
  implementation, typically 8.

Supported Platforms (Known and tested):
Linux glibc (SHA since glibc 2.7, DES and MD5)
FreeBSD 3.x (DES (MD5 maybe))
FreeBSD 4.x (DES and MD5)
Solaris 2.5-2.6 (DES only)
Cygwin 1.1.4 (DES only)
Prior Cygwin with the MD5 libcrypt (MD5 only)
OpenBSD 2.7 (don't link with -lcrypt) (DES and MD5, no Blowfish support)
Mac OS-X (Darwin) (don't link with -lcrypt) (DES only)

Other systems probably work, but they haven't been amply tested.
1	knight	31	$Id$
2	adx	30
3	michael	1272	This is documentation for the mkpasswd.c included in ircd-hybrid-8.
4	adx	30
5			This version of mkpasswd can create both DES and MD5 passwords, with
6			either randomly generated or user provided salts.
7
8			Options:
9	michael	1272	-6 - Create a SHA-512 password
10			-5 - Create a SHA-256 password
11	adx	30	-m - Create an MD5 password
12	michael	1272	-b - Create a BlowFish password
13	adx	30	-d - Create a DES password
14	michael	1272	-e - Create an Extended DES password
15	adx	30	-l - Specify the length of a random MD5 salt
16	michael	1272	-r - Specify a number of rounds for a BlowFish or Extended DES password
17	adx	30	-p - Specify the plaintext password at the command line
18			-s - Specify the salt at the command line
19	michael	1272	-R - Specify a raw salt passed directly to crypt()
20	adx	30	-h - Get help
21
22			Without the presence of any parameters, it'll behave like the old mkpasswd,
23			creating a DES password with a randomly generated salt and prompting for
24			the password (without echo).
25
26			A DES salt is a pair of alphanumeric characters ('.' and '/' are permitted
27			as well), such as 'a4' or 'Td'.
28
29			An MD5 salt consists of up to 16 (though most implementations limit you to
30			8) alphanumeric characters (plus '.' and '/'),
31			such as 'tGd' or 'J6d4dfG'.
32
33			Known bugs:
34			Blowfish (on OpenBSD) is not yet supported
35			The encryption algorithms supported depend on your system's crypt()
36			implementation.
37			The maximum length of an MD5 salt is limited to your systems crypt()
38			implementation, typically 8.
39
40			Supported Platforms (Known and tested):
41	michael	1274	Linux glibc (SHA since glibc 2.7, DES and MD5)
42	adx	30	FreeBSD 3.x (DES (MD5 maybe))
43			FreeBSD 4.x (DES and MD5)
44			Solaris 2.5-2.6 (DES only)
45			Cygwin 1.1.4 (DES only)
46			Prior Cygwin with the MD5 libcrypt (MD5 only)
47			OpenBSD 2.7 (don't link with -lcrypt) (DES and MD5, no Blowfish support)
48			Mac OS-X (Darwin) (don't link with -lcrypt) (DES only)
49
50			Other systems probably work, but they haven't been amply tested.
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