> It's a glibc 2.x thing as far as I can tell. if you pass a properly
> formatted MD5 "salt" to the standard crypt() function then it will
> generate an MD5 password automatically. Thus you can check passwords
> without regard for their format.
Ah yes. You see on my old Slackware system, I linked with the supplied
libshadow.a file. But you're right, it's actually your implementation of
the crypt() function that plays the role there.
In my standard shadow package, the applications have to know how to pass
the salt, and my /etc/login.defs defines the directive to enable MD5
encryption, which is what I use by the way.
Password length limit for standard DES-based crypt() is 8 characters. MD5
can go quite long, it's 127 characters on my shadow package.
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