Java coding for validating x 509 certificate
Using this timestamp to verify the freshness of the request before responding protects your service from attackers attempting a “replay” attack in which they acquire a properly signed request and then repeatedly resend it to disrupt your service.
Your service should allow a tolerance of no more than 150 seconds (two and a half minutes).
that accepts requests from and sends responses to the Alexa service in the cloud.
You can write your web service using any programming language, as long as the service meets the requirements described below.
This structure can be used to represent various types of information including identity, entitlement, and holder attributes (permissions, age, sex, location, affiliation, and so forth).
Although the ISO specifications are most informative on the structure itself, the class is designed to model the usage scenarios defined in specifications issued by the Internet Engineering Task Force (IETF) Public Key Infrastructure, X.509 (PKIX) working group.
If you implement the skill as an Note: if you are using Apache HTTP Server to host your web service, use version 2.4.10 or later.
The compliant solution may vary, depending on the actual implementation.
For examples of secure implementation such as using a self-signed server certificate, please refer to "Android Application Secure Design/Secure Coding Guidebook", Section 5.4 Communicate by HTTPS.
This is acceptable for development and testing, but verification should be enabled before publishing your Alexa skill to users.
You can set this system property by passing an argument to the JVM when your web service starts up: is provided as an ISO 8601 formatted string (for example, 2015-05-13TZ).