[TYPO3-dev] Getting clear text passwords in authentication service

[Steffen Gebert]

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Dear Chris,

there is no (algorithmic) way to get the clear-text representation of a
hashed value. Hashing is a one-way function and thus different from
encryption (where a decryption exists).

Kind regards
Steffen

- -- 
Steffen Gebert
TYPO3 Server Administration Team Member

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On 5/3/13 3:58 PM, Chris Müller wrote:
> Hello,
> 
> I have to migrate users from another PHP application to TYPO3. The
> passwords of these users are hashed in another way than TYPO3 does. Now
> I created a new service with the highest quality and priority. My new
> service is then called, if a frontend user logs in.
> 
> Now I need the password in clear text to validate against the old
> hashing algorithm. This is where I'm stuck. I'm only getting the uident
> property as an rsa encrypted string and no uident_text property. I also
> looked in the saltedpasswords and openid system extension but didn't
> found how to get the clear text password.
> 
> Can someone give me a hint or an example how to accomplish this?
> 
> Regards,
> Chris.
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