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Re: [pgadmin-hackers] Client-side password encryption

From: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>
To: Dave Page <dpage(at)vale-housing(dot)co(dot)uk>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter_e(at)gmx(dot)net>,pgsql-hackers(at)postgresql(dot)org,Andreas Pflug <pgadmin(at)pse-consulting(dot)de>
Subject: Re: [pgadmin-hackers] Client-side password encryption
Date: 2005-12-20 01:33:28
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
By the way,

I've already implemented this in phpPgAdmin trivially using the md5() 
function.  I can't be bothered using a C library function :D


Dave Page wrote:
>>-----Original Message-----
>>From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us] 
>>Sent: 19 December 2005 05:37
>>To: Christopher Kings-Lynne
>>Cc: Peter Eisentraut; pgsql-hackers(at)postgresql(dot)org; Andreas 
>>Pflug; Dave Page
>>Subject: Re: [HACKERS] [pgadmin-hackers] Client-side password 
>>Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:
>>>>So it appears that pg_md5_encrypt is not officially 
>>exported from libpq.  
>>>>Does anyone see a problem with adding it to the export 
>>list and the 
>>>>header file?
>>>Is it different to normal md5?  How is this helpful to the 
>>It would be better to export an API that is (a) less random (why one
>>input null-terminated and the other not?) and (b) less tightly tied
>>to MD5 --- the fact that the caller knows how long the result must be
>>is the main problem here.
>>Something like
>>	char *pg_gen_encrypted_passwd(const char *passwd, const 
>>char *user)
>>with malloc'd result (or NULL on failure) seems more future-proof.
> Changing the API is likely to cause fun on Windows for new apps that
> find an old libpq.dll. Perhaps at this point it should become
> libpq82.dll?
> Regards, Dave.
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