“I worked with Percy in the CCSAS CSE project which was the largest HHS Child Support project in the nation. It was a multi year , multi million turnkey project for the State of California. Percy designed and developed the Batch Integration Architecture for the System , later on he led the Batch Integration team. He is a wonderful person with great interpersonal skills and a good leader .He is an excellent technologist and a thorough professional. Although we worked together for a very short period , I enjoyed working with him.He is a great asset to any team and I wish him great success in all his future endeavors.”
About
Activity
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This is what Lawrence Tech Guild is all about. I was mesmerized by the presentations, I had fun meeting interesting folks and chatting with friends…
This is what Lawrence Tech Guild is all about. I was mesmerized by the presentations, I had fun meeting interesting folks and chatting with friends…
Liked by Percy Wegmann
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While we are all excited about Gen AI and the great technologies that exist, let’s not lose sight of the key factors that are the foundation in a…
While we are all excited about Gen AI and the great technologies that exist, let’s not lose sight of the key factors that are the foundation in a…
Liked by Percy Wegmann
Experience & Education
Publications
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Blocking Resistant Communication through Domain Fronting
De Gruyter Open
We describe “domain fronting,” a versatile censorship circumvention technique that hides the remote endpoint of a communication. Domain fronting works at the application layer, using HTTPS, to communicate with a forbidden host while appearing to communicate with some other host, permitted by the censor. The key idea is the use of different domain names at different layers of communication. One domain appears on the “outside” of an HTTPS request—in the DNS request and TLS Server Name…
We describe “domain fronting,” a versatile censorship circumvention technique that hides the remote endpoint of a communication. Domain fronting works at the application layer, using HTTPS, to communicate with a forbidden host while appearing to communicate with some other host, permitted by the censor. The key idea is the use of different domain names at different layers of communication. One domain appears on the “outside” of an HTTPS request—in the DNS request and TLS Server Name Indication—while another domain appears on the “inside”—in the HTTP Host header, invisible to the censor under HTTPS encryption. A censor, unable to distinguish fronted and nonfronted traffic to a domain, must choose between allowing circumvention traffic and blocking the domain entirely, which results in expensive collateral damage. Domain fronting is easy to deploy and use and does not require special cooperation by network intermediaries. We identify a number of hard-to-block web services, such as content delivery networks, that support domain-fronted connections and are useful for censorship circumvention. Domain fronting, in various forms, is now a circumvention workhorse. We describe several months of deployment experience in the Tor, Lantern, and Psiphon circumvention systems, whose domain-fronting transports now connect thousands of users daily and transfer many terabytes per month.
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Languages
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German
Native or bilingual proficiency
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English
Native or bilingual proficiency
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Spanish
Limited working proficiency
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