[TYPO3-core] RFC #11016: Implement RSA authentication for BE and FE

[Dmitry Dulepov]

Hi!

Dmitry Dulepov wrote:
> BT reference: http://bugs.typo3.org/view.php?id=11016

Committed to trunk in two pieces:
- rsaauth ext
- fixes for the login procedure

Two piece commit makes it easier to see logical changes.

-- 
Dmitry Dulepov
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