منابع مشابه
Coin flipping from a cosmic source: On error correction of truly random bits
We study a problem related to coin flipping, coding theory, and noise sensitivity. Consider a source of truly random bits x ∈ {0, 1}n, and k parties, who have noisy versions of the source bits y ∈ {0, 1}n, where for all i and j, it holds that P[y j = xj ] = 1 − ǫ, independently for all i and j. That is, each party sees each bit correctly with probability 1 − ǫ, and incorrectly (flipped) with pr...
متن کاملCurious Case of Rowhammer: Flipping Secret Exponent Bits Using Timing Analysis
Rowhammer attacks have exposed a serious vulnerability in modern DRAM chips to induce bit flips in data which is stored in memory. In this paper, we develop a methodology to combine timing analysis to perform the hammering in a controlled manner to create bit flips in cryptographic keys which are stored in memory. The attack would require only user level privilege for Linux kernel versions befo...
متن کاملNovel Computing Architecture on Arrays of Josephson Persistent Current Bits
A superconducting qubit (or quantum bit), which consists of a micrometer-sized loop with three Josephson junctions, has two persistent currents of opposite direction as its two states. The states of the qubit can be brought into quantum coherence to perform quantum computing. Classical bits can also be obtained from these superconducting loops, making it possible to base a classical computer ar...
متن کاملPancake Flipping with Two Spatulas
In this paper we study several variations of the pancake flipping problem, which is also well known as the problem of sorting by prefix reversals. We consider the variations in the sorting process by adding with prefix reversals other similar operations such as prefix transpositions and prefix transreversals. These type of sorting problems have applications in interconnection networks and compu...
متن کاملThe charge flipping algorithm.
This paper summarizes the current state of charge flipping, a recently developed algorithm of ab initio structure determination. Its operation is based on the perturbation of large plateaus of low electron density but not directly on atomicity. Such a working principle radically differs from that of classical direct methods and offers complementary applications. The list of successful structure...
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ژورنال
عنوان ژورنال: Science
سال: 2019
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.365.6448.41-f