Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Sign up!
EnGarde Community
What is the most important Linux security technology?
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Latest Newsletters
Linux Security Week: March 23rd, 2015
Linux Advisory Watch: March 20th, 2015
LinuxSecurity Newsletters
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints Print E-mail
User Rating:      How can I rate this item?
Source: IETF - Posted by Eric Lubow   
Documentation This document describes a method of verifying Secure Shell (SSH) host keys using Domain Name System Security (DNSSEC). The document defines a new DNS resource record that contains a standard SSH key fingerprint.

The SSH [6] protocol provides secure remote login and other secure network services over an insecure network. The security of the connection relies on the server authenticating itself to the client as well as the user authenticating itself to the server. If a connection is established to a server whose public key is not already known to the client, a fingerprint of the key is presented to the user for verification. If the user decides that the fingerprint is correct and accepts the key, the key is saved locally and used for verification for all following connections. While some security-conscious users verify the fingerprint out-of-band before accepting the key, many users blindly accept the presented key. The method described here can provide out-of-band verification by looking up a fingerprint of the server public key in the DNS [1][2] and using DNSSEC [5] to verify the lookup.

Read this full article at IETF

Only registered users can write comments.
Please login or register.

Powered by AkoComment!

< Prev   Next >


Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Tech Companies, Privacy Advocates Call for NSA Reform
Google warns of unauthorized TLS certificates trusted by almost all OSes
How Kevin Mitnick hacked the audience at CeBIT 2015
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2015 Guardian Digital, Inc. All rights reserved.