Create a Key Pair

To create a key pair and obtain the private key

1. Use the create_key_pair method and specify the key pair name. The method returns a CFResponse object, as follows:

   $response = $ec2->create_key_pair('my-php-key-pair');

   Key pair names must be unique. If you attempt to create a key pair with the same key name as an existing key pair, an error will occur.

2. Use the response object's body->keyMaterial property to obtain the unencrypted PEM-encoded private key, as follows:

   (string) $private_key = $response->body->keyMaterial;

   Calling create_key_pair is the only way to obtain the private key programmatically. You can always access your private key through the AWS Management Console.