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Archive for April 2014

Fiddler: Creation of interception certificate failed

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This post is a direct solution from hyperlink – http://harachie.wordpress.com/2011/04/05/fiddler-creation-of-interception-certificate-failed/. I find myself doing it a couple of times every month, and keep googling. Instead I thought Iā€™d have a copy of the post myself.

 

Problem:

If you get the Fiddler error ā€œ

—————————
Unable to Generate Certificate
—————————
Creation of the interception certificate failed.

makecert.exe returned -1.

Results from C:\Program Files (x86)\Fiddler2\MakeCert.exe -r -ss my -n "CN=DO_NOT_TRUST_FiddlerRoot, O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com" -sky signature -eku 1.3.6.1.5.5.7.3.1 -h 1 -cy authority -a sha1 -m 132 -b 04/29/2013

Error: Can’t create the key of the subject (‘JoeSoft’)
Failed
——————————————-
—————————
OK  
—————————
ā€œ

Screenshot_043014_111514_AM

 

Solution:

Navigate to

%userprofile%\AppData\Roaming\Microsoft\Crypto\RSA

and delete the contents of the folder.

Screenshot_043014_124310_PM
(hit that damn Yes button)

Written by gmaran23

April 30, 2014 at 1:50 pm