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Re: [Lynx-dev] cert bundle sources

From: Doug Kaufman
Subject: Re: [Lynx-dev] cert bundle sources
Date: Sat, 21 Mar 2009 14:11:58 -0700 (PDT)

On Sat, 21 Mar 2009, Stefan Caunter wrote:

> Going through the procedure for exporting certs from IE it seems that
> IE (and FF) export only one DER formatted cert at a time from Windows.
> ... 
> Any other ideas for sources for CA root certs?
> As it stands, I can't find a way to get all of the certs dumped from
> Windows to DER, for openssl conversion to PEM and eventual hashing.

I am not sure I understand exactly what you tried to do. On my
WindowsXP machine, running IE6, I just go to 
"Tools/Internet Options/Content/Certificates/Trusted Root Certification 
I then highlight all the certificates by left-clicking on the first,
going to the end and shift-left-clicking on the last. Click the export
button and pick a name for the exported bundle (e.g. cert.p7b). Then
"openssl pkcs7 -inform der -outform pem -in cert.p7b -out cert.pem -print_certs 
should do it. The "-text" is optional. I don't have IE7 to see what it

Daniel Stenberg, the author of curl, has a perl script on his web page,
writen by Guenter Knauf, for extracting a cert bundle from the Mozilla
source ( He also maintains extracted cert bundles
available for download. You just need to change the name to cert.pem.
See "";

Doug Kaufman
Internet: address@hidden

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