hmac_security_definitions.yml

  securityDefinitions: 
    hmac: 
      algorithm: "sha256"
      inputs: 
        timestamp: 
          type: "integer"
          format: "int64"
        uri: 
          type: "string"
          description: "The full URI of the request"
        body: 
          type: "string"
          description: "The full string body of the request"
        secret:
          type: "string"
          description: "The shared secret key"
      outputs: 
        name: "myHash"
        in: "header"
        description: "Holds the hashed value"