New RFC grants DKIM improved status

Posted by   Virus Bulletin on   Sep 23, 2011

Email signing method now 'Draft Standard'.

The Internet Engineering Task Force (IETF) has published a new RFC describing the DKIM protocol which sees its status advance from 'Proposed Standard' to 'Draft Standard'.

DKIM ('DomainKeys Identified Email') allows mail transfer agents (MTAs) to sign email messages that pass through them and also to verify a signature attached to an incoming email. The signatures, which use public key cryptography, are linked to domain names; the public keys are published via DNS.

A DKIM signature itself makes no claims about whether an email is spam or not. However, the strength of DKIM is that the link to the domain name in principle cannot be forged (unlike any other part of the email which can be) - and in the case of spam it usually is forged. Hence DKIM can be used to whitelist certain senders based on a domain name or, more generally, to help a spam filter make a decision based on a sender's reputation. As such, DKIM may improve spam filters' accuracy.

As DKIM's success depends greatly on how widely it is used, the improved status is good news for the protocol's many advocates. Among them is messaging anti-abuse organisation MAAWG, which has recommended the use of DKIM in its Sender Best Communication Practices.

The RFC, which has been given the number 6376, can be found here, with comments from email security company Cloudmark here.

At the same time, another RFC was published that provides guidance for the use of DKIM in scenarios that inlcude Mailing List Managers; this document is published as RFC 6377 here.

Posted on 23 September 2011 by Virus Bulletin

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

VB2021 localhost videos available on YouTube

VB has made all VB2021 localhost presentations available on the VB YouTube channel, so you can now watch - and share - any part of the conference freely and without registration.

VB2021 localhost is over, but the content is still available to view!

VB2021 localhost - VB's second virtual conference - took place last week, but you can still watch all the presentations.

VB2021 localhost call for last-minute papers

The call for last-minute papers for VB2021 localhost is now open. Submit before 20 August to have your paper considered for one of the slots reserved for 'hot' research!

New article: Run your malicious VBA macros anywhere!

Kurt Natvig explains how he recompiled malicious VBA macro code to valid harmless Python 3.x code.

New article: Dissecting the design and vulnerabilities in AZORult C&C panels

In a new article, Aditya K Sood looks at the command-and-control (C&C) design of the AZORult malware, discussing his team's findings related to the C&C design and some security issues they identified.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.