title: OpenSSL certificate: self-signed cert for composer install
body: <p>I'm trying to run composer install while inside a secure network with ipv4 enabled. The current issue is the Self-signed certs cause a security error when running the commands inside the network. When I run it outside the network (without ipv4), it works perfectly.</p>
  
  <p>I have tried a few different methods, like making a certificate file and including it in composer.json under the options field. Unfortunately, it didn't work.</p>
  
  <p>SSL Error messages:
  error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
  The "<a href="https://getcomposer.org/versions" rel="nofollow noreferrer">https://getcomposer.org/versions</a>" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages:<br>
  error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
  Failed to enable crypto
  failed to open stream: operation failed</p>
  
  <p>Thank you.</p>