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Evaluating Inclusion, Equality, Security, and Privacy in Pseudonym Parties and Other Proofs of Personhood
Identity and Personhood in Digital Democracy: Evaluating Inclusion, Equality, Security, and Privacy in Pseudonym Parties and Other Proofs of Personhood Bryan Ford Swiss Federal Institute of Technology in Lausanne (EPFL) November 5, 2020 Abstract of enforced physical security and privacy can address the coercion and vote-buying risks that plague today’s E- Digital identity seems at first like a prerequisite for digi- voting and postal voting systems alike. We also examine tal democracy: how can we ensure “one person, one vote” other recently-proposed approaches to proof of person- online without identifying voters? But the full gamut of hood, some of which offer conveniencessuch as all-online digital identity solutions – e.g., online ID checking, bio- participation. These alternatives currently fall short of sat- metrics, self-sovereign identity, and social/trust networks isfying all the key digital personhood goals, unfortunately, – all present severe flaws in security, privacy, and trans- but offer valuable insights into the challenges we face. parency, leaving users vulnerable to exclusion, identity loss or theft, and coercion. These flaws may be insur- mountable because digital identity is a cart pulling the Contents horse. We cannot achieve digital identity secure enough to support the weight of digital democracy, until we can 1 Introduction 2 build it on a solid foundation of digital personhood meet- ing key requirements. While identity is about distinguish- 2 Goals for Digital Personhood 4 ing one person from another through attributes or affilia- tions, personhood is about giving all real people inalien- 3 Pseudonym Parties 5 able digital participation rights independent of identity, 3.1 Thebasicidea. -
Digital Identity Roadmap Guide
Digital Identity Roadmap Guide International Telecommunication Union Place des Nations CH-1211 Geneva 20 Switzerland ISBN: 978-92-61-27821-2 9 7 8 9 2 6 1 2 7 8 2 1 2 Published in Switzerland Geneva, 2018 Digital Identity Roadmap Guide Some Rights Reserved This work is a publication of the International Telecommunication Union (ITU). The findings, interpre- tations and conclusions expressed in this work do not necessarily reflect the views of the International Telecommunication Union or its governing bodies. The International Telecommunication Union does not guarantee the accuracy of the data included in this work. The boundaries, colours, denominations, and other information shown on any map in this work do not imply any judgment on the part of the International Telecommunication Union concerning the legal status of any territory or the endorse- ment or acceptance of such boundaries. Nothing herein shall constitute or be considered to be a limitation upon or waiver of the privileges and immunities of the International Telecommunication Union, all of which are specifically reserved. Rights & Permission This work is available under the Creative Commons Attribution 3.0 IGO license (CC BY 3.0 IGO) http:/ / creativecommons .org/ licenses/by/ 3 .0/ igo. Under the Creative Commons Attribution license, you are free to copy, distribute, transmit, and adapt this work, including for commercial purposes, under the following conditions: Attribution — Please cite the work as follows: International Telecommunication Union, Digital Identity Roadmap Guide. Creative Commons Attribution 3.0 IGO (CC BY 3.0 IGO). Translations — If you create a translation of this work, please add the following disclaimer along with the attribution: This translation was not created by the International Telecommunication Union (ITU) and should not be considered an official translation. -
Applicability and Appropriateness of Distributed Ledgers Consensus Protocols in Public and Private Sectors: a Systematic Review
Received February 13, 2019, accepted February 27, 2019, date of publication March 21, 2019, date of current version April 13, 2019. Digital Object Identifier 10.1109/ACCESS.2019.2904181 Applicability and Appropriateness of Distributed Ledgers Consensus Protocols in Public and Private Sectors: A Systematic Review A. SHAHAAB 1, B. LIDGEY2, C. HEWAGE 1, AND I. KHAN1 1Cardiff School of Technologies, Cardiff Metropolitan University, Cardiff, CF5 2YB, U.K. 2Companies House, Cardiff, CF14 3UZ, U.K. Corresponding author: A. Shahaab ([email protected]) This work was supported by the Knowledge Economy Skills Scholarships through a major pan-Wales operation supported by the European Social Funds through the Welsh Government, and through Companies House, U.K., under Grant CMK219. ABSTRACT Advancement of consensus protocols in recent years has enabled distributed ledger technologies (DLTs) to find its application and value in sectors beyond cryptocurrencies. Here we reviewed 66 known consensus protocols and classified them into philosophical and architectural categories, also providing a visual representation. As a case study, we focus on the public sector and highlighted potential protocols. We have also listed these protocols against basic features and sector preference in a tabular format to facilitate selection. We argue that no protocol is a silver bullet, therefore should be selected carefully, considering the sector requirements and environment. INDEX TERMS Blockchain technology, consensus algorithms, distributed consensus protocols, distributed ledger technology, DLTs for public sector, distributed systems, Govtech, permissioned and permissionless blockchains. I. INTRODUCTION information across a distributed ledger. The objective of all Achieving consensus is a fundamental problem in distributed of these attempts is to achieve availability and consistency computing. -
Digital Identity in Banking What Ceos Need to Know About Best Practices and Future Directions
Digital Identity In Banking What CEOs Need to Know About Best Practices and Future Directions RON SHEVLIN Director of Research Cornerstone Advisors TABLE OF CONTENTS 1 Digital Identity: A Challenge As Old As The Internet 3 Technology Developments In Digital Identity Management 7 Five Forces Shaping Digital Identity Management 15 Best Practices In Digital Identity Management For Today 17 Conclusion 19 About Cornerstone Advisors 19 Avoka (now Temenos) 20 Endnotes © 2018 Cornerstone Advisors. All rights reserved. Reproduction of this report by any means is strictly prohibited without written permission. DIGITAL IDENTITY: A CHALLENGE AS OLD AS THE INTERNET Although the topic of digital identity gets daily attention today in 2018, it’s hardly a new topic. In 1993, The New Yorker published what has become one of the most—if not the most—iconic cartoons about the Internet (Figure 1). In it, one dog says to another, “On the Internet, nobody knows you’re a dog.” Twenty-five years ago, many people saw the ability FIGURE 1: New Yorker Cartoon on Digital Identity to remain anonymous as a feature of the Internet, not a liability. Despite a quarter century of techno- logical advances that include e-commerce, social media, and the smartphone: “There is still no easy way to prove online that you are not a dog, are over 18, live at a certain address, graduated from a certain school, work at a specific company, or own a specific asset. These kinds of assertions about ourselves are difficult to trust because they are nearly impossible to verify.” 1 Source: The New Yorker WHY IS DIGITAL IDENTITY STILL A PROBLEM? If we’ve seen 25 years of technological advances, then why is digital identity still a problem? Three reasons: 1) There are no standardized formats for digital credentials; 2) There are no standardized methods to verify the source and integrity of digital credentials; and 3) The technological advances that have occurred over the past 25 years have exasperated the problem—not alleviated it. -
Digital Identity
Building Trusted & Resilient DIGITAL IDENTITY JULY 2019 Business Roundtable CEO members lead companies with more than 15 million employees and $7.5 trillion in revenues. The combined market capitalization of Business Roundtable member companies is the equivalent of over 27 percent of total U.S. stock market capitalization, and Business Roundtable members invest nearly $147 billion in research and development — equal to over 40 percent of total U.S. private R&D spending. Our companies pay $296 billion in dividends to shareholders and generate $488 billion in revenues for small and medium-sized businesses. Business Roundtable companies also make more than $8 billion in charitable contributions. Learn more at BusinessRoundtable.org. Copyright © 2019 by Business Roundtable Building Trusted & Resilient DIGITAL IDENTITY JULY 2019 CONTENTS Introduction 2 Digital Identity Today: Promise & Challenges 3 A Vision for the Future: Objectives for Improving Digital Identity 6 An Action Plan to Establish Trust & Resiliency in Digital Identity 8 Conclusion 13 Appendix: Primer on Digital Identity 14 Endnotes 18 Building Trusted and Resilient Digital Identity 1 Introduction The ability of individuals to recognize and use creative and sophisticated tools to stay a step ahead. As a result, illegitimate identity may trust each other plays a fundamental role in well be the likeliest path for fraud and other cybersecurity intrusions. economic and social interactions. Yet having a digital identity is more than a data Before the digital age, identification systems protection and security mechanism — it enables relied upon physical documents and face-to-face individual users and institutions to establish an interactions. The internet and the proliferation appropriate level of trust to transact and interact of internet-enabled devices have dramatically in the digital world, including activities ranging changed the interplay between individuals and from banking to health care to social media. -
A Guide to Optimizing Digital Identity Risk and Experience with Adaptive Access
A Guide to Optimizing Digital Identity Risk and Experience with Adaptive Access Phone Numbers Email Addresses The Power of Identity Name Our digital identities are fundamental to how we interact with each other and the online world. [ 1 ] The ability to prove who we are provides us with control and allows access to people, information and economies. Digital trust in those identities is Device Usage power. Geo Data But creating a trusted digital identity can be difficult. It’s a complex network of traditional instruments of ID such as name, address, birthday and social security Search Habits number and data points like email address, username and password, search habits, purchasing behavior and so on. This personally identifiable information (PII) is made up of the unique attributes Biometric Da associated with an individual and is the gateway to every online exchange. These actions rely on context to understand identity. Mouse speed [2] As the exchanges increase, however, so do vulnerabilities. Bad actors are Purchase Behavior constantly finding new ways to exploit PII for identity theft or to hack businesses for valuable data. In 2018, the number of consumer records exposed containing sensitive PII shot up to 126%. [ 3 ] In 2019, the cost of a data breach increased to nearly $4 million.[4] Typing speed Address SSN# Kicking the Can The problem is people don’t exactly understand cybersecurity, [ 5 ] and many KEY POINT organizations are still protecting critical applications through username and password alone when there’s a better way. Multi-factor authentication (MFA) can add another layer of security and makes it much more difficult for unauthorized persons Despite a predicted increase and greater to gain access. -
Sybil Attacks on Identity-Augmented Proof-Of-Stake
King’s Research Portal DOI: 10.1016/j.comnet.2021.108424 Document Version Early version, also known as pre-print Link to publication record in King's Research Portal Citation for published version (APA): Platt, M., & McBurney, P. (2021). Sybil Attacks on Identity-Augmented Proof-of-Stake. COMPUTER NETWORKS , 199, [108424]. https://doi.org/10.1016/j.comnet.2021.108424 Citing this paper Please note that where the full-text provided on King's Research Portal is the Author Accepted Manuscript or Post-Print version this may differ from the final Published version. If citing, it is advised that you check and use the publisher's definitive version for pagination, volume/issue, and date of publication details. And where the final published version is provided on the Research Portal, if citing you are again advised to check the publisher's website for any subsequent corrections. General rights Copyright and moral rights for the publications made accessible in the Research Portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognize and abide by the legal requirements associated with these rights. •Users may download and print one copy of any publication from the Research Portal for the purpose of private study or research. •You may not further distribute the material or use it for any profit-making activity or commercial gain •You may freely distribute the URL identifying the publication in the Research Portal Take down policy If you believe that this document breaches copyright please contact [email protected] providing details, and we will remove access to the work immediately and investigate your claim. -
Digital Identification: a Key Identification: Todigital Inclusive Growth
Digital identification: A key to inclusive growth inclusive Digital to identification: key A Digital identification A key to inclusive growth April 2019 McKinsey Global Institute Since its founding in 1990, the McKinsey Global Institute (MGI) has sought to develop a deeper understanding of the evolving global economy. As the business and economics research arm of McKinsey & Company, MGI aims to provide leaders in the commercial, public, and social sectors with the facts and insights on which to base management and policy decisions. MGI research combines the disciplines of economics and management, employing the analytical tools of economics with the insights of business leaders. Our “micro-to-macro” methodology examines microeconomic industry trends to better understand the broad macroeconomic forces affecting business strategy and public policy. MGI’s in-depth reports have covered more than 20 countries and 30 industries. Current research focuses on six themes: productivity and growth, natural resources, labor markets, the evolution of global financial markets, the economic impact of technology and innovation, and urbanization. Recent reports have assessed the digital economy, the impact of AI and automation on employment, income inequality, the productivity puzzle, the economic benefits of tackling gender inequality, a new era of global competition, Chinese innovation, and digital and financial globalization. MGI is led by three McKinsey & Company senior partners: Jacques Bughin, Jonathan Woetzel, and James Manyika, who also serves as the chairman of MGI. Michael Chui, Susan Lund, Anu Madgavkar, Jan Mischke, Sree Ramaswamy, and Jaana Remes are MGI partners, and Mekala Krishnan and Jeongmin Seong are MGI senior fellows. Project teams are led by the MGI partners and a group of senior fellows and include consultants from McKinsey offices around the world. -
Enabling Digital Identity
Enabling Digital Identity David Recordon Innovator for Advanced Products & Research DC PHP Conference 2006 Overview + Web 2.0 + Identity…so what? + Identity 2.0 + “Competitive” Overview + Digging into OpenID + Example Relying Party What is Web 2.0? Web 2.0 + Users in Control + Data Sharing + Social Networking + Collaboration Tools + Lightweight Business Models + Perpetual Beta + The Long Tail + Application Platform What is Identity? “The collective aspect of the set of characteristics by which a thing is definitively recognizable or known.” -Dictionary.com Offline Identity + David Recordon + 09/04/1986 + Oregon + Black Hair and Brown Eyes + Central Pocket Loop + Size 12 Shoes + Drive a Subaru + Work for VeriSign + Star Alliance Gold + AOW Scuba Diver + CPR / AED / First Aid Trained + etc Online Identity + David Recordon + Daveman692 + recordond + http://daveman692.livejournal.com + [email protected] + [email protected] + [email protected] + [email protected] Identity…why do we need technology? + Accuracy ▪ Biometrics + Convenience ▪ Verification + Security ▪ Authorization + Privacy ▪ Limited Disclosure + Portability ▪ HSPD-12 Identity 1.0 on the Web + Proprietary ▪ AOL ▪ Yahoo! ▪ Microsoft ▪ Google + Segregated + Federation + Little User Choice + Many Usernames + Few Passwords Identity 2.0 + Internet Scale ▪ Decentralized + Privacy Protecting ▪ Disclose only as much as is needed + Easy to Adopt ▪ Add to your application in a weekend + Community Driven ▪ Open Source development and that means… + User Choice ▪ Who hosts -
Coins, Clubs, and Crowds: Scaling and Decentralization in Next-Generation Blockchains
Coins, Clubs, and Crowds: Scaling and Decentralization in Next-Generation Blockchains Prof. Bryan Ford Decentralized and Distributed Systems (DEDIS) School of Information and Communications (IC) [email protected] – dedis.epfl.ch Vienna BDLT Summer School – September 3, 2019 Where there’s data, there’s risk... Access, sharing compounds risk Weakest-Link Security “You can trust us!” Shared Access Partner A Business Partner B Partner C “All of us!” A Fundamental Challenge In today’s IT systems, security is an afterthought ● Designs embody “weakest-link” security Scaling to bigger systems → weaker security ● Greater chance of any “weak link” breaking Central Databases = Attractive Targets One of three credit rating agencies in the US ● Exposed sensitive personal information about 143 million people (44% of US population) The DEDIS lab at EPFL: Mission Design, build, and deploy secure privacy-preserving Decentralized and Distributed Systems (DEDIS) • Distributed: spread widely across the Internet & world • Decentralized: independent participants, no central authority, no single points of failure or compromise Overarching theme: building decentralized systems that distribute trust widely with strongest-link security Strongest-Link Security Weakest-Link Security Turning Around the Security Game Design IT systems so that making them bigger makes their security increase instead of decrease Weakest-link Strongest-link Scalable security security Strongest-link security DEDIS Laboratory Members Bryan Ford Philipp Jovanovic Associate Professor Postdoctoral Scholar Lefteris Kokoris-Kogias Kirill Nikitin Cristina Basescu Enis Ceyhun Alp Ph.D. Student Ph.D. Student Ph.D. Student Ph.D. Student Jeff R. Allen Kelong Cong Gaylor Bosson Noémien Kocher Software Engineer Software Engineer Software Engineer Software Engineer Today’s Hot Decentralized Technology (credit: Tony Arcieri) Bitcoin (2008) First successful decentralized cryptocurrency… How to track wealth (or anything)? Things Ledgers ● Gold, beads, cash.. -
Sok: Layer-Two Blockchain Protocols
SoK: Layer-Two Blockchain Protocols Lewis Gudgeon1, Pedro Moreno-Sanchez2, Stefanie Roos3, Patrick McCorry4, and Arthur Gervais1;5;6 1 Imperial College London, United Kingdom 2 TU Wien, Austria 3 TU Delft, Netherlands 4 PISA Research, United Kingdom 5 Lucerne University of Applied Sciences and Arts, Switzerland 6 Liquidity Network, Switzerland Abstract. Blockchains have the potential to revolutionize markets and services. However, they currently exhibit high latencies and fail to handle transaction loads comparable to those managed by traditional financial systems. Layer-two protocols, built on top of (layer-one) blockchains, avoid disseminating every transaction to the whole network by exchang- ing authenticated transactions off-chain. Instead, they utilize the expen- sive and low-rate blockchain only as a recourse for disputes. The promise of layer-two protocols is to complete off-chain transactions in sub-seconds rather than minutes or hours while retaining asset security, reducing fees and allowing blockchains to scale. We systematize the evolution of layer-two protocols over the period from the inception of cryptocurrencies in 2009 until today, structuring the multifaceted body of research on layer-two transactions. Categorizing the research into payment and state channels, commit-chains and pro- tocols for refereed delegation, we provide a comparison of the protocols and their properties. We provide a systematization of the associated syn- chronization and routing protocols along with their privacy and security aspects. This Systematization of Knowledge (SoK) clears the layer-two fog, highlights the potential of layer-two solutions and identifies their unsolved challenges, indicating propitious avenues of future work. Keywords: Applied Cryptography, Blockchain Applications, Layer-Two Blockchain Protocols, Blockchain Scaling, Cryptocurrency Adoption 1 Introduction Blockchains offer a mechanism through which mutually mistrusting entities can cooperate in the absence of a trusted third party. -
Securing Digital Identities in the Cloud by Selecting an Apposite Federated Identity Management from SAML, Oauth and Openid Connect
Securing Digital Identities in the Cloud by Selecting an Apposite Federated Identity Management from SAML, OAuth and OpenID Connect Nitin Naik and Paul Jenkins Defence School of Communications and Information Systems Ministry of Defence, United Kingdom Email: [email protected] and [email protected] Abstract—Access to computer systems and the information this sensitive data over insecure channels poses a significant held on them, be it commercially or personally sensitive, is security and privacy risk. This risk can be mitigated by using naturally, strictly controlled by both legal and technical security the Federated Identity Management (FIdM) standard adopted measures. One such method is digital identity, which is used to authenticate and authorize users to provide access to IT in the cloud environment. Federated identity links and employs infrastructure to perform official, financial or sensitive operations users’ digital identities across several identity management within organisations. However, transmitting and sharing this systems [1], [2]. FIdM defines a unified set of policies and sensitive information with other organisations over insecure procedures allowing identity management information to be channels always poses a significant security and privacy risk. An transportable from one security domain to another [3], [4]. example of an effective solution to this problem is the Federated Identity Management (FIdM) standard adopted in the cloud Thus, a user accessing data/resources on one secure system environment. The FIdM standard is used to authenticate and could then access data/resources from another secure system authorize users across multiple organisations to obtain access without both systems needing individual identities for the to their networks and resources without transmitting sensitive single user.