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Re: Hilariously Bad SQRL Implementation


From: Travis Biehn <tbiehn () gmail com>
Date: Wed, 20 Aug 2014 17:24:10 -0400

An additional note, the SQRL protocol itself is pretty poorly documented on
the GRC website:
https://www.grc.com/sqrl/details.htm

Instead of writing technical specifications like online sales copy for
penis pills perhaps we can get a draft in an ... RFC like format.


On Sun, Aug 17, 2014 at 8:22 PM, Scott Arciszewski <kobrasrealm () gmail com>
wrote:

If any of you are familiar with Stephen Gibson's SQRL protocol for user
authentication (really neat idea), you might have come across this PHP
implementation before: https://github.com/geir54/php-sqrl

Unfortunately, this library is actually pretty terrible. Not only does it
pass all of the data off to a Heroku app to perform the signature
verification, it is also vulnerable to SQL Injection:


https://github.com/geir54/php-sqrl/blob/0fa574520a1843a33a84c3985f934e84af6f2042/sqrl_verify.php#L39-59

I thought about submitting a pull request to fix this, but I don't believe
there is honestly much here to salvage. So, I'm writing my own
implementation here:

https://github.com/darkitecht/php-sqrl <- Not ready, at all, for even beta
testing.

P.S. Also, it uses mt_rand() for challenge generation in a crypto library.
Tsk tsk.

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