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Re: [dkim-ops] [Dkim-contact] When i switched to "g=bh", Gmail said (...)

2008-11-04 19:44:19
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Here is the full header failed in DKIM verifying:

<URL:http://izb.knu.ac.kr/~bh/stuff/gmail-full-header-2008110501>

FYI; i used/use Jason's DKIMProxy for signing DKIM signature ;;

Vijay Eranti (✌ విజయ్ ఈరంటి) wrote:
can you send me a sample dkim signature that failed ?
here is what the spec says

g=  Granularity of the key (plain-text; OPTIONAL, default is "*").
       This value MUST match the Local-part of the "i=" tag of the DKIM-

       Signature header field (or its default value of the empty string
       if "i=" is not specified). An email with a signing address that does 
not
       match the value of this tag constitutes a failed verification.

       The intent of this tag is to constrain which signing address can
       legitimately use this selector, for example, when delegating a
       key to a third party that should only be used for special
       purposes. 

I am interested in what you specified in your i= in the dkim signature.


On Mon, Nov 3, 2008 at 8:27 PM, Byung-Hee HWANG 
<bh(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr
<mailto:bh(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr>> wrote:


When i was used with "g=*", Gmail said as follow:

       dkim=pass (test mode) 
header(_dot_)i=(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr
<http://izb.knu.ac.kr>

When i switched to "g=bh" from "g=*", Gmail said as follow:

       dkim=neutral (no key) 
header(_dot_)i=(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr
<http://izb.knu.ac.kr>

Below is my current TXT record for DKIM:

bh(_at_)chrys:~> dig +short dj._domainkey.izb.knu.ac.kr
<http://domainkey.izb.knu.ac.kr>. TXT
"v=DKIM1; k=rsa; g=bh; s=email; t=y; p=...snip...;"
bh(_at_)chrys:~>

With same key("g=bh"), dkim-test(_at_)testing(_dot_)dkim(_dot_)org
<mailto:dkim-test(_at_)testing(_dot_)dkim(_dot_)org>'s result was:

       dkim=pass, header(_dot_)i=bh(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr 
<mailto:bh(_at_)izb(_dot_)knu(_dot_)ac(_dot_)kr>

Am i wrong? Or Gmail's missed point about "g" tag?

byunghee





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iEYEARECAAYFAkkQ65UACgkQsCouaZaxlv6XOQCfa02DfGPt/DUi+lyhr5CtJCda
nV8AoJOUf9FZJZ7xMN+Ezx72JObSdSde
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