Sean Mountcastle

Title: Sean Mountcastle: Innovator in DNS Whitelisting Technology

Introduction

Sean Mountcastle is a notable inventor based in Herndon, VA (US). He has made significant contributions to the field of technology, particularly in the area of DNS whitelisting. With a total of 6 patents to his name, Mountcastle has developed innovative methods that enhance internet security and user experience.

Latest Patents

One of Sean Mountcastle's latest patents is a system and method for adding a whitelist entry via DNS. This method allows for the addition of a blacklisted site to a whitelist. It involves generating at least one whitelisting query for an encoded domain, which includes a nonce, a hash, a blocked domain, and a static domain, each separated by a delimiter. The nonce serves as a unique identifier for the query, while the hash is a cryptographic representation of the user's IP address, a normalized timestamp, and the blocked domain. The queries are sent to a recursive DNS server, which creates a message containing whitelist information and forwards it to another recursive DNS server.

Another patent by Mountcastle also focuses on the method for adding a whitelist entry via DNS. This method includes requesting a blacklisted site through a network, generating queries for an encoded domain, and sending these queries to a recursive DNS server. The web browser then requests the blacklisted site, adds it to the whitelist, and accesses the site using the corresponding IP address.

Career Highlights

Throughout his career, Sean Mountcastle has worked with prominent companies such as Cisco Technology, Inc. and Verisign, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions in the technology sector.

Collaborations

Mountcastle has collaborated with notable individuals in his field, including David Blacka and Wayne Clayton Cannon. These partnerships have likely played a role in the development of his innovative patents and methods.

Conclusion

Sean Mountcastle is a distinguished inventor whose work in DNS whitelisting technology has made a significant impact on internet security. His innovative patents and collaborations with industry leaders highlight his contributions to the field.