Too Many Secrets? When Should the Intelligence Community be Allowed to Keep Secrets?

Quantum fingerprints that keep secrets

We introduce a new type of cryptographic primitive that we call hiding fingerprinting. A (quantum) fingerprinting scheme translates a binary string of length n to d (qu)bits, typically d ≪ n, such that given any string y and a fingerprint of x, one can decide with high accuracy whether x = y. Classical fingerprinting schemes cannot hide information very well: a classical fingerprint of x that g...

Using Artificial Intelligence to Identify State Secrets

Whether officials can be trusted to protect national security information has become a matter of great public controversy, reigniting a long-standing debate about the scope and nature of official secrecy. The declassification of millions of electronic records has made it possible to analyze these issues with greater rigor and precision. Using machine-learning methods, we examined nearly a milli...

Lockbox: Helping Computers Keep Your Secrets

The realization that modern architectures lack sufficient security features is not a new one. Many grand visions of “trusted computing” remain unfilled. After millions of dollars of research money, huge expenditures on the part of industry and rarely seen levels of cooperation between hardware vendors, users remain without substantial security features in their systems. Those features that do e...

Honest Databases That Can Keep Secrets

Polyinstantiation has generated a great deal of controversy lately. Some have argued that polyinstantiation and integrity are fundamentally incompatible, and have proposed alternatives to polyinstantiation. Others have argued about the correct de nition of polyinstantiation and its operational semantics. In this paper we provide a fresh analysis of the basic problem that we are trying to solve,...

When should patients be allowed to drive after ICD implantation?