Re: [Help-gnu-radius] SQL Password Storage Format?

[Ken Simpson]

Hi Sergey,
What format is the MD5 hash stored in? I store my MD5s as a hex digest,
e.g. 7c3095ff47666a0d9e40034512d54710. But on my RedHat system, it seems
to be stored using something like base64.

Can gnu-radius be configured to accept hex digests instead of base64 (or
whatever it is)?

Thanks,
Ken

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On Thu, 9 May 2002, Sergey Poznyakoff wrote:

> > I assumed that I could just store the md5 hash of my passwords, but that
> > doesn't seem to work. Do you have to prepend {md5} or something like that?
>
> When Auth-Type is set to SQL, the database is assumed to contain usual
> MD5 hashed passwords. These are not to be confused with MD5
> hashes. The hashed password is:
>
>       '$1$' + SALT + '$' + MD5HASH
>
>
> where strings enclosed in a pair of quotes appear as they are,
> + denotes concatenation, SALT is the salt value used when generating
> hash and MD5HASH is the hash value itself.
>
> If your system is able to keep MD5 encoded passwords in its
> passwd/shadow database, you will see the same format used there.
>
> Regards,
> Sergey
>
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