[TYPO3-dev] cHash cache length

[Helmut Hummel]

Hi Richard!

Am 22.12.14 um 00:40 schrieb Richard Davies:

> My extension emails out a list of download links to customers that are
> never generated again / listed anywhere. They include cHash links. Do cHash
> links expire? Or only when the Typo3 cache is cleared? Or only when the
> install tool clear cache button is clicked?

The cHash is calculated from the keys and values of the GET arguments in 
the URL *and* the Encryption key. This means the cHash stays valid as 
long as the encryption key stays the same. Clearing *any* cache does 
*not* invalidate a cHash.

Kind regards,
Helmut

-- 
Helmut Hummel
Release Manager TYPO3 6.0
TYPO3 CMS Active Contributor, TYPO3 Security Team Member

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