Use common challenge for multiple registrations

[zauguin]

With U2F API v1.1 the same challenge is used for all registrations, so with this it is easier to use this library with the new API.

[ChristophWurst]

cc @klali @LukasReschke as potential reviewers :-)

[ChristophWurst]

Travis CI error seems unrelated. It fails only on php7, looks like a different version of phpunit is installed there which is incompatible with the current tests (they are using namespaced classes now) https://travis-ci.org/Yubico/php-u2flib-server/jobs/229318480

[ChristophWurst]

Travis CI error seems unrelated. It fails only on php7, looks like a different version of phpunit is installed there which is incompatible with the current tests (they are using namespaced classes now) https://travis-ci.org/Yubico/php-u2flib-server/jobs/229318480

I will take a look at this.

[klali]

This looks good to me, planning to merge it but I'd like to land the phpunit fixes in #56 first.

[ChristophWurst]

Hey @klali,

thanks a lot for your quick response and for merging those PRs! Will those changes automatically be published to the composer registry?

[ChristophWurst]

I see the dev-master is already available: https://packagist.org/packages/yubico/u2flib-server#dev-master

[klali]

yeah.. I guess we (I) should make a 1.0.1 release with the last couple of fixes. Would you be helped by a tagged release?

[ChristophWurst]

Yes, that would be great

[klali]

1.0.1 is pushed

[ChristophWurst]

Thanks a lot! I'm already using it here 🚀