generate a Cloudfront Signed URL using Clojure

Is there an easy way to generate a Cloudfront Signed URL in Clojure?

I'm using Amazonica for S3 (which works great):

(s3/set-s3client-options {:path-style-access true})
(aws/defcredential s3_accesskey s3_secretkey)
(s3/generate-presigned-url bucket key (-> 6 hours from-now))

Is there anything similar for Cloudfront?