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153 results on '"John Kelsey"'

1. XDRBG: A Proposed Deterministic Random Bit Generator Based on Any XOF

Author

John Kelsey, Stefan Lucks, and Stephan Müller

Subjects
pseudorandom bit generation, forward security, backward security, extendable output function (XOF), Computer engineering. Computer hardware, TK7885-7895
Abstract

A deterministic random bit generator (DRBG) generates pseudorandom bits from an unpredictable seed, i.e., a seed drawn from any random source with sufficient entropy. The current paper formalizes a security notion for a DRBG, in which an attacker may make any legal sequence of requests to the DRBG and sometimes compromise the DRBG state, but should still not be able to distingush DRBG outputs from ideal random bits. The paper proposes XDRBG, a new DRBG based on any eXtendable Output Function (XOF) and proves the security of the XDRBG in the ideal-XOF model. The proven bounds are tight, as demonstrated by matching attacks. The paper also discusses the security of XDRBG against quantum attackers. Finally, the paper proposes concrete instantiations of XDRBG, employing either the SHAKE128 or the SHAKE256 XDRBG. Alternative instantiations suitable for lightweight applications can be based on ASCON.

Published
2024
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7. Settler/Colonial Violences: Black and Indigenous Coalition Possibilities through Intergroup Dialogue Methodology

Author

John, Kelsey Dayle and Brown

Subjects
settler colonialism, transnational feminism, Black and Indigenous feminist thought, critical theory, faith communities, neoslavery, dispossession, reimagining borders
Abstract

This essay collages theories (settler colonialism, transnational feminism, Black and Indigenous feminist thought, and critical theory) for the purpose of dialoguing together through land-based Black and Indigenous solidarities. In our dialogue, we invite readers to think about how choosing theories and identifying intentions is a methodology of coalition. We demonstrate how this might materialize in three coalition possibilities: faith communities, neoslavery for dispossession and erasure, and reimagining borders.

Published
2019

15. A History of Navajo Nation Education: Disentangling Our Sovereign Body

Author

John, Kelsey Dayle

Subjects
University of Arizona Press, Ethnic, cultural, racial issues/studies
Abstract

A History of Navajo Nation Education: Disentangling Our Sovereign Body by Wendy Shelly Greyeyes University of Arizona Press, 2022 Greyeyes starts this book with an example familiar to many community [...]

Published
2020

40. Housing Access and Affordability in Rural England: Tackling Inequalities Through Upstream Reform or Downstream Intervention?

Author

Nick Gallent, Iqbal Hamiduddin, Phoebe Stirling, and John Kelsey

Subjects
Upstream (petroleum industry), Inequality, business.industry, media_common.quotation_subject, 05 social sciences, Geography, Planning and Development, 0211 other engineering and technologies, 0507 social and economic geography, ComputerApplications_COMPUTERSINOTHERSYSTEMS, 021107 urban & regional planning, 02 engineering and technology, Rural housing, Intrusion, Intervention (law), Development economics, Business, InformationSystems_MISCELLANEOUS, 050703 geography, Constraint (mathematics), media_common, Downstream (petroleum industry)
Abstract

A combination of development constraint, low wages in seasonal employment and market intrusion by more affluent households generates housing access and affordability difficulties in many rural amen...

Published
2020

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