[j-nsp] Format of SHA1 Passwords

Chip Marshall chip at 2bithacker.net
Tue Dec 3 12:32:24 EST 2013


On 2013-12-03, Paul Goyette <pgoyette at juniper.net> sent:
> Looks like the output is identical to what would be generated by 
> the *BSD pwhash(1) utility.
> 
> 	# pwhash -S 24680 stuff
> 	$sha1$23933$/WgTkHoe$25rdwdZ95cfgY/Tl6li2/LRIbuVT
> 	#
> 
> pwhash(1) in turn calls the crypt(3) library function after it 
> generates a salt.
> 
> Digging through the sources, we find the following comment block 
> in src/lib/libcrypt/crypt-sha1.c

Ah ha! Perfect! It appears this is specifically a NetBSD thing,
or at least my OpenBSD and FreeBSD boxes don't have crypt-sha1.c
or the pwhash utility.

-- 
Chip Marshall <chip at 2bithacker.net>
http://2bithacker.net/


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