We help IT Professionals succeed at work.
Get Started

Powershell script signing with a personal certificate created by makercert

Last Modified: 2015-05-20
Hi all,

I use a tool called "makecert" to make a root certificate and a personal certificate as follows:

Root Cert: makecert -n "CN=ROOT CERTIFICATE" -a sha1 -eku -r -sv root.pvk root.cer -ss Root

Then I tried to create a perosnal cert. to be used for signing a power shell script

Personal Cert: makecert -n "CN=PERSONAL CERTIFICATE" -ss MY -a sha1 -eku -iv root.pvk -ic root.cer -sv personal.cer

When I tried to use sign a powershell script by uisng the newly created certificate, I got this error

PS C:\temp> Set-AuthenticodeSignature 1.ps1 @(get-childitem cert:\CurrentUser\My

Set-AuthenticodeSignature : Cannot sign code. The specified certificate is not
suitable for code signing.

I have a query  if it is mandatory to embed the private key inside the personal certificate.

I could sign my powershell script if I do not save the private key file when making a personal certificate as follows:

"makecert -n "CN=PERSONAL CERTIFICATE" -ss MY -a sha1 -eku -iv root.pvk -ic root.cer"  
(with the -sv optio removed).

Please clarify. Thanks a lot.
Watch Question
This problem has been solved!
Unlock 1 Answer and 2 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE