Difference between pages "User:Cobalt2020" and "DomainKeys Identified Mail"

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I'm interested to see how forensicwiki will grow. My own forensic-related website/company is located at [http://www.aeicomputertech.com].
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'''DomainKeys Identified Mail''' ('''DKIM''') is a method for signing email messages to help eliminate spam.  
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The signature in each message should give the domain (<tt>d=</tt>) and selector (<tt>s=</tt>). The appropriate key can be retrived as a TXT [[Domain Name System|DNS]] record from the host <tt>''selector''._domainkey.''domain''</tt> [http://www.elandsys.com/resources/sendmail/dkim.html]. A sample message from Gmail had the following DKIM header:
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<pre>
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DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
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        d=gmail.com; s=beta;
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</pre>
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We can thus retrieve the Gmail key with:
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<pre>$ host -t txt beta._domainkey.gmail.com
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beta._domainkey.gmail.com descriptive text "t=y\; k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC69TURXN3oNfz+G/m3g5rt4P6nsKmVgU1D6cw2X6BnxKJNlQKm10f8tMx6P6bN7juTR1BeD8ubaGqtzm2rWK4LiMJqhoQcwQziGbK1zp/MkdXZEWMCflLY6oUITrivK7JNOLXtZbdxJG2y/RAHGswKKyVhSP9niRsZF/IBr5p8uQIDAQAB"</pre>
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== External Links ==
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* [http://www.dkim.org/ Official website]
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* [http://en.wikipedia.org/wiki/DomainKeys_Identified_Mail Wikipedia entry on DKIM]

Revision as of 14:22, 29 April 2007

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Further information might be found on the discussion page.

DomainKeys Identified Mail (DKIM) is a method for signing email messages to help eliminate spam.

The signature in each message should give the domain (d=) and selector (s=). The appropriate key can be retrived as a TXT DNS record from the host selector._domainkey.domain [1]. A sample message from Gmail had the following DKIM header:

DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
        d=gmail.com; s=beta;

We can thus retrieve the Gmail key with:

$ host -t txt beta._domainkey.gmail.com
beta._domainkey.gmail.com descriptive text "t=y\; k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC69TURXN3oNfz+G/m3g5rt4P6nsKmVgU1D6cw2X6BnxKJNlQKm10f8tMx6P6bN7juTR1BeD8ubaGqtzm2rWK4LiMJqhoQcwQziGbK1zp/MkdXZEWMCflLY6oUITrivK7JNOLXtZbdxJG2y/RAHGswKKyVhSP9niRsZF/IBr5p8uQIDAQAB"


External Links