Em Monday 03 March 2008 13:17:03 vocĂȘ escreveu:
>
> My understanding is no password is sent in the clear with md5 per:
>
> http://www.postgresql.org/docs/8.3/interactive/auth-methods.html#AUTH-PASSW
>ORD

But the MD5 hash is.  This page states that the password can't be directly 
sniffed, but one can still get the hash of the password and perform a 
dictionary attack against it on a local copy (i.e., without ever trying to 
connect to the server).

After a successful attack then one can connect directly to the server as if 
the password was known to him/her.

Crypting the channell -- be it with SSL or SSH, for example -- will prevent 
the sniffer from being able to capture the hash, so your password will be 
safer.

-- 
Jorge Godoy      <[EMAIL PROTECTED]>


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