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Rethinking Public Key Infrastructures And Digital Certificates Pdf

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Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security.

Rethinking Public Key Infrastructures and Digital Certificates: Building in Privacy

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Conventional public-key infrastructure PKI designs using certificate authorities and web-of-trust are not optimal and have security flaws. The properties afforded by the Bitcoin blockchain are a natural solution to some of the problems with PKI - in particular, certificate transparency and elimination of single points-offailure. Proposed blockchain-based PKI designs are built as public ledgers linking identity with public key, providing no privacy. View via Publisher.

Digital signature technology, based on public key cryptography, has been claimed as the appropriate means of achieving this aim. Digital signatures do little, however, unless a substantial 'public key infrastructure' PKI is in place to provide a basis for believing that the signature means something of significance to the relying party. This paper examines that form of PKI architecture, and concludes that the reason for its failure is its very poor fit to the real needs of cyberspace participants. Its key deficiencies are its inherently hierarchical and authoritarian nature, its unreasonable presumptions about the security of private keys, a range of other technical and implementation defects, confusions about what it is that a certificate actually provides assurance about, and its inherent privacy-invasiveness. Alternatives to conventional PKI are identified.

Rethinking public key infrastructures and digital certificates : building in privacy

Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security. As paper-based communication and transaction mechanisms are replaced by automated ones, traditional forms of security such as photographs and handwritten signatures are becoming outdated. Most security experts believe that digital certificates offer the best technology for safeguarding electronic communications. They are already widely used for authenticating and encrypting email and software, and eventually will be built into any device or piece of software that must be able to communicate securely. There is a serious problem, however, with this unavoidable trend: unless drastic measures are taken, everyone will be forced to communicate via what will be the most pervasive electronic surveillance tool ever built. There will also be abundant opportunity for misuse of digital certificates by hackers, unscrupulous employees, government agencies, financial institutions, insurance companies, and so on. In this book Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security.

This content was uploaded by our users and we assume good faith they have the permission to share this book. If you own the copyright to this book and it is wrongfully on our website, we offer a simple DMCA procedure to remove your content from our site. Start by pressing the button below! Brands Rethinking Public Brands All rights reserved. No part of this book may be reproduced in any form by any electronic or mechanical means including photocopying, recording, or information storage and retrieval without permission in writing from the publisher.


You’re facing PCIDSS compliance, but your PKI vendor refuses to go on with the trends and.


Stefan Brands

As paper-based communication and transaction mechanisms are replaced by automated ones, traditional forms of security such as photographs and handwritten signatures are becoming outdated. Most security experts believe that digital certificates offer the best technology for safeguarding electronic communications. They are already widely used for authenticating and encrypting email and software, and eventually will be built into any device or piece of software that must be able to communicate securely.

Stefan Brands proposes cryptographic building blocks for the design of digital certificates that preserve privacy without sacrificing security. As paper-based communication and transaction mechanisms are replaced by automated ones, traditional forms of security such as photographs and handwritten signatures are becoming outdated. Most security experts believe that digital certificates offer the best technology for safeguarding electronic communications. They are already widely used for authenticating and encrypting email and software, and eventually will be built into any device or piece of software that must be able to communicate securely.

Abstract: Public Key Infrastructure PKI has now passed its first decade of activity on the Internet, but has yet to break out of pathetically small revenues. Reasons and factors contributing to the failure are many and varied. Is it that the PKI is a solution looking for a problem?

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