/home/arranoyd/www/wp-content/plugins/brizy/vendor/knplabs/gaufrette/doc/adapters/amazon-s3.md
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currentMenu: amazon-s3
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# AmazonS3 & AclAwareAmazonS3
When using the legacy Amazon S3 adapters (aws-sdk-php < 2), you will need to specify a CA
certificate to be able to talk to Amazon servers in https. You can use
the one which is shipped with the SDK by defining before creating the
``\AmazonS3`` object:
```php
define("AWS_CERTIFICATE_AUTHORITY", true);
```
Specifying a custom CA certificate is not required when using the
`Gaufrette\Adapter\AmazonS3` adapter because it uses the newest version of the
AWS SDK for PHP.