Tag: crypto

Paper – “If Communication is a Bridge, Cryptography is a Drawbridge: A Stage-Based Model of Communication Processes” (ICA 2022)

Charles Berret

This paper presents a model of communication based on the conditions of its success and failure. Building on Peters’ metaphor of communication as both a bridge and a chasm, the model depicts cryptography as a drawbridge to selectively choose the audience of a message. The model forms a set of islands linked by a series of drawbridges, each representing a source of communication’s success or failure, and each of which must be passed in sequence. The first drawbridge is recognition, in which the most basic source of failed communication is to be unaware that a message is even present. The next is access, in which some form of barrier or lack of authorization keeps one from accessing a message. Next is legibility, the ability to recognize individual symbols, followed by intelligibility, the recognition of coherent patterns, words, and syntax in those symbols. The final two stages of this model concern different stages of meaning. The public meaning of a message is the literal, surface sense intended to be understood without insinuation or ambiguity. The private meaning of a message is either selectively encoded for a specific audience, or else fully interior to our own minds. The descriptive and explanatory power of this model is illustrated through various examples in which communication is secret, secure, and otherwise selective of its audience.

Journalism – “Newsrooms are making leaking easier and more secure than ever” (CJR 2017)

As a break from dissertation writing, I accepted an invitation from the editors of the Columbia Journalism Review to write an article revisiting last year’s Tow Center report on the use of SecureDrop in newsrooms. Here in the early months of the Trump presidency, all indications point to an incredible surge in the use of secure whistleblowing tools among Washington insiders hoping to contact journalists anonymously. A handful of my sources not only confirmed that this is the case, but also offered some sense of how they’ve coordinated this growing stream of information. Find the article here.

Interview – Talking SecureDrop on the “It’s All Journalism” Podcast

Posting this a bit late, but I was invited to speak on the podcast “It’s All Journalism” back in June. They were curious about my research on SecureDrop and I think we covered the subject pretty well in just under thirty minutes.

You can tune in here:

And my report on SecureDrop is available here: