donkey(1) [debian man page]
DONKEY(1) DONKEY(1) NAME
donkey - alternative for S/KEY's "key" command. SYNOPSIS
donkey [options] sequence seed donkey -i key [option] sequence seed key -i DESCRIPTION
This manual page documents briefly the donkey, and key commands. This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page. Instead, it has documentation in /usr/share/doc/donkey donkey is an alternative for S/KEY's "key" command. The new feature that the original key doesn't have is print an entry for skeykeys as follows; kazu 0099 al02004 115d83956f1089b6 Apr 26,1995 22:13:27 This means that donkey is also an alternative for "keyinit". Since the entry is printed to stdout (not to /etc/skeykeys), you can easily sent it to remote operator by e-mail (with PGP signature or something). So, it possible to initiate S/KEY without login from the console of the host. OPTIONS
A summary of options are included below. -n num specify number of keys to be calculated. -f func choose hash function from MD2 , MD4 , and MD5 EXAMPLES
(1) Calculate an One-Time-Password. Execute Donkey with sequence and seed, then input your passphrase. % donkey 80 is12345 Enter passphrase : xxxxxxxxxxxxxxxxxxxxxxx SOFT O SAW SWAB CON RODE You can choose hash function from MD2, MD4, and MD5. % donkey 80 is12345 Enter passphrase : xxxxxxxxxxxxxxxxxxxxxxx SOFT O SAW SWAB CON RODE %donkey -f md5 80 is12345 Enter passphrase : xxxxxxxxxxxxxxxxxxxxxxx LACK WIN ROSE ANNA STUN REEK The default hash function is MD4 due to the historical reason. (2) Calculate some One-Time-Passwords at once. Use -n option. % donkey -n 10 80 is12345 Enter passphrase : xxxxxxxxxxxxxxxxxxxxxxx 71: WORE HELL CUB FAR DORA MALE 72: SAIL DAN DONE BEER DAYS MOS 73: PAN TONE THAT TOUT BURY EST 74: KEN ROAM HEAT NAN MEAN HEN 75: MINI MARS HASH BOTH SITU SING 76: TOW SHIN FLUE ARID AHOY NE 77: SLID LEEK NO TREE STOW BEY 78: RUDY WINE GIFT FUSS AGEE SUE 79: GELD THIN MAID THIN BUD TURF 80: SOFT O SAW SWAB CON RODE Note that though "Enter passphrase" is printed out to stderr, One-Time-Passwords is to stdout. So, you can redirect the output safely. (3) Print skeykeys entry. Use -i option without argments. Then, enter login name, sequence and seed. If you like default value, just type RET. Input your passphrase twice to get the entry. % donkey -i Enter login name [default kazu]: Enter sequence 1 to 999 [default 99]: Enter new seed [default ur18122]: Please choose passphrase between 8 and 256 characters. Enter passphrase : xxxxxxxxxxxxxxxxxxxxxxxxxxx Re-enter passphrase : xxxxxxxxxxxxxxxxxxxxxxxxxxx kazu 0099 ur18122 fc5b023e684968ff Oct 02,1995 16:15:30 WINK SEAM GRAB ROAD HELL FEST BUGS
Things to do: Support other one time passwords such as OTP. Support other secure hash functions. AUTHOR
This program is developed by Kazuhiko Yamamoto <kazu@is.aist-nara.ac.jp>. This manual page was written by Fumitoshi UKAI <ukai@debian.or.jp>, based on documents of this program, for the Debian GNU/Linux system (but may be used by others). October 4, 1995 DONKEY(1)
Check Out this Related Man Page
Authen::Passphrase::NTHash(3pm) User Contributed Perl Documentation Authen::Passphrase::NTHash(3pm) NAME
Authen::Passphrase::NTHash - passphrases using the NT-Hash algorithm SYNOPSIS
use Authen::Passphrase::NTHash; $ppr = Authen::Passphrase::NTHash->new( hash_hex => "7f8fe03093cc84b267b109625f6bbf4b"); $ppr = Authen::Passphrase::NTHash->new( passphrase => "passphrase"); $ppr = Authen::Passphrase::NTHash->from_crypt( '$3$$7f8fe03093cc84b267b109625f6bbf4b'); $ppr = Authen::Passphrase::NTHash->from_rfc2307( '{MSNT}7f8fe03093cc84b267b109625f6bbf4b'); $hash = $ppr->hash; $hash_hex = $ppr->hash_hex; if($ppr->match($passphrase)) { ... $passwd = $ppr->as_crypt; $userPassword = $ppr->as_rfc2307; DESCRIPTION
An object of this class encapsulates a passphrase hashed using the NT-Hash function. This is a subclass of Authen::Passphrase, and this document assumes that the reader is familiar with the documentation for that class. The NT-Hash scheme is based on the MD4 digest algorithm. Up to 128 characters of passphrase (characters beyond the 128th are ignored) are represented in Unicode, and hashed using MD4. No salt is used. Warning: MD4 is a weak hash algorithm by current standards, and the lack of salt is a design flaw in this scheme. Use this for compatibility only, not by choice. CONSTRUCTORS
Authen::Passphrase::NTHash->new(ATTR => VALUE, ...) Generates a new passphrase recogniser object using the NT-Hash algorithm. The following attributes may be given: hash The hash, as a string of 16 bytes. hash_hex The hash, as a string of 32 hexadecimal digits. passphrase A passphrase that will be accepted. Either the hash or the passphrase must be given. Authen::Passphrase::NTHash->from_crypt(PASSWD) Generates a new NT-Hash passphrase recogniser object from a crypt string. Two forms are accepted. In the first form, the he crypt string must consist of "$3$$" (note the extra "$") followed by the hash in lowercase hexadecimal. In the second form, the he crypt string must consist of "$NT$" followed by the hash in lowercase hexadecimal. Authen::Passphrase::NTHash->from_rfc2307(USERPASSWORD) Generates a new NT-Hash passphrase recogniser object from an RFC 2307 string. Two forms are accepted. In the first form, the string must consist of "{MSNT}" followed by the hash in hexadecimal; case is ignored. In the second form, the string must consist of "{CRYPT}" (case insensitive) followed by an acceptable crypt string. METHODS
$ppr->hash Returns the hash value, as a string of 16 bytes. $ppr->hash_hex Returns the hash value, as a string of 32 hexadecimal digits. $ppr->match(PASSPHRASE) $ppr->as_crypt $ppr->as_rfc2307 These methods are part of the standard Authen::Passphrase interface. SEE ALSO
Authen::Passphrase, Digest::MD4 AUTHOR
Andrew Main (Zefram) <zefram@fysh.org> COPYRIGHT
Copyright (C) 2006, 2007, 2009, 2010, 2012 Andrew Main (Zefram) <zefram@fysh.org> LICENSE
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-02-07 Authen::Passphrase::NTHash(3pm)