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Date: Tue, 22 Jul 2014 11:31:26 -0300
From: Juan Bernhard <juan@inti.gob.ar>
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Subject: Re: Migrating users from Linux
References: <20140722160329.24aff9e6@mordeus>
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El 22/07/2014 11:03 a.m., Luciano Mannucci escribió:
> 
> Still in the process of migrating all my Linux servers to FreeBSD, I'm
> now trying to move out a couple of thousands users created in a twenty
> years timespan from a linux server.
> Of course I need to keep uid and gid, though the juicy part is...
> the passwords! I have them only in encrypted form and in different
> algorythms (DES, Blowfish, ...) and the happily coexist. Con they
> be used as they are in Freebsd?
> 
> Thanks a lot again,
> 
> luciano.
> 

I think that if you respect the fields order and values for
master.password, the hash will work fine.
See "man 5 master.password", and if you need to add another algorithm
see "man 3 crytp" to understand in witch algorithm you have hashed the
old passwords (for example, if the hash begins with $1$ is in MD5)

Saludos, Juan.