Public key infrastructure with the Dogtag certificate system


Article from Issue 101/2009

If you are looking for more control of your public key infrastructure, try the powerful Dogtag certificate system.

Asymmetric cryptography provides a powerful and convenient means for encrypting Internet communications. In this scenario, each entity involved in the encryption system possesses a pair of keys: a public key and a private key. The public key is used to encrypt data or to validate signatures. Data encrypted with the public key is then decrypted with the matching private key.

If Alice wants to send an encrypted message to Bob, she needs to obtain Bob’s public key for her key ring. Encryption software on Alice’s computer then uses Bob’s public key to encrypt the message, and Bob’s computer uses Bob’s private key to decrypt it.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Security Lessons

    Researchers set out to compromise MD5 in an effort to convince people to stop using it. We explain how the attack worked and what this means for you.

  • Security Lessons: Fixing SSL

    We look at some new approaches to certificate verification.

  • Workspace: Digital Signatures

    We'll show you the free and easy way to set up digital signatures for office documents and email.

  • Safe Messaging with TLSA

    Decoupled application design gets in the way of secure communication, but a little known feature of DNS can provide message security.

  • The State of Secure Boot

    Opinions differ on the UEFI boot security system, but one thing is certain: Secure Boot is here to stay. We thought it was time to ask, "How hard is it to boot a popular Linux distribution in a UEFI Secure Boot environment?"

comments powered by Disqus
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters

Support Our Work

Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

Learn More