aws/aws-sdk-java — pull request #112 by andrecardoso (2013-09-04 19:01:54+00:00)
Title: Extracting a new method to verify SNS JSON messages using an already parsed Map object

I need to verify a SNS's Notification message and already have the message parsed into a Map. To avoid building the JSON again or parsing it twice, I extracted the `verifySignature` method and created a version that accepts a map.