William Friedman, Geneticist Turned Cryptographer

Sara Friedman

Footprint Scheduling for Dining-Cryptographer Networks

In many communication scenarios it is not sufficient to protect only the content of the communication, it is necessary to also protect the identity of communicating parties. Various protocols and technologies have been proposed to offer such protection, for example, anonymous proxies, mix-networks, or onion routing. The protocol that offers the strongest anonymity guarantees, namely uncondition...

Recent battle between quantum cryptographer and hacker

Xiongfeng Ma, ∗ Yang Liu, Yan-Lin Tang, Teng-Yun Chen, Hua-Lei Yin, Chi-Hang Fred Fung, Hai-Lin Yong, Liu-Jun Wang, Hao Liang, Guo-Liang Shentu, Jian Wang, Ke Cui, Li Li, Nai-Le Liu, Cheng-Zhi Peng, Zeng-Bing Chen, Qiang Zhang, and Jian-Wei Pan 3 Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing, China Shanghai Branch, Hefei Natio...

Implementing the Friedman Rule

In cash-in-advance models, necessary and sufficient conditions for the existence of an equilibrium with zero nominal interest rates and Pareto optimal allocations place restrictions only on the very long-run, or asymptotic, behavior of the money supply. When these asymptotic conditions are satisfied, they leave the central bank with a great deal of flexibility to manage the money supply over an...

The Friedman Embedding Theorem

In this paper, we will present an explicit construction of Harvey Friedman which to every finitely generated group G associates a 2-generator subgroup KG 6 Sym(N) such that G embeds into KG and such that if G ∼= H, then KG = KH .