Cannot install via composer about ratchet

[igorw]

Try composer self-update. GitHub changed their URLs, and a newer version of composer is required to get the updated ones.

[cboden]

Closing issue. Please re-open if problem persists.

[nesX]

I cant install

i run composer install

and get error :
[Composer\Repository\RepositorySecurityException]
The contents of http://packagist.org/p/symfony/dependency-injection$6f81ce0cc316312a333bcddb1c6bc82435378950cbcc47e78523437d6bc79689.js

on do not match its signature. This should indicate a man-in-the-middle attack. Try running composer again and report this if you think it is a mistake.

[cboden]

@nesX

composer self-update
composer install

If you still receive the same error you probably are the victim of a man-in-the-middle attack. I just successfully installed Ratchet/0.2.5 and Ratchet/app-dev with the latest version of composer.