Yes I know restoring plain password from it's hash is impossible (at
least in theory ;)) but I don't need password itself.
I thought if we know f1(x) (PASSWORD) and f2(x) (OLD_PASSWORD) we
possibly can get such f(x) that will make expression f2(x) = f(f1(x))
truth for every x.
I haven't any problem with new password format, I just have to move some
databases from one server to another.
Ady Wicaksono wrote:
AFAIK,
PASSWORD() or OLD_PASSWORD() is one way function, it means in math if
you do f(x) = y, you never know x, all you now is the result of f(x) ~ y
Moreover, do you have a problem with new password format?
Eugene Kosov wrote:
Hi, everyone!
I have transfer user's database and grants from one mysql server
(4.1.15) to an older one (4.0.26). I don't know user's password and
have only it's hash. How can I convert hashed password stored in
mysql.user.password field to the 4.0 format? Is there something
similar to OLD_PASSWORD(), but with 4.1's hashed password as a parameter?
Any links, man references, etc. are welcome!
Thanks in advance!
--
Regards,
Eugene Kosov.
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