Monday, April 18, 2022

Self Signed certificate

Create root certificate

1) PS C:\WINDOWS\system32> New-SelfSignedCertificate -DnsName "localhost", "localhost" -CertStoreLocation "cert:\LocalMachine\My" -NotAfter (Get-Date).AddYears(20) -FriendlyName "Rlocalhost" -KeyUsageProperty All -KeyUsage CertSign, CRLSign, DigitalSignature

 

PSParentPath: Microsoft.PowerShell.Security\Certificate::LocalMachine\My

Thumbprint                                Subject

----------                                -------

8C3452CA05A70484DA828FA91E54394C683A06E2  CN=localhost

2)  PS C:\WINDOWS\system32> $CertPwd = ConvertTo-SecureString -String "password" -Force -AsPlainText

3) PS C:\WINDOWS\system32> Get-ChildItem -Path cert:\localMachine\my\8C3452CA05A70484DA828FA91E54394C683A06E2 | Export-PfxCertificate -FilePath C:\FamLink\docs\certificates\root.pfx -Password $CertPwd

    Directory: C:\FamLink\docs\certificates

Mode                 LastWriteTime         Length Name

----                 -------------         ------ ----

-a----         4/14/2022   2:56 PM           2701 root.pfx

4) PS C:\WINDOWS\system32> $rootcert = ( Get-ChildItem -Path cert:\LocalMachine\My\8C3452CA05A70484DA828FA91E54394C683A06E2 )

5) PS C:\WINDOWS\system32> New-SelfSignedCertificate -certstorelocation cert:\localmachine\my -dnsname "localhost" -Signer $rootcert -NotAfter (Get-Date).AddYears(20) -FriendlyName "Clocalhost"

   PSParentPath: Microsoft.PowerShell.Security\Certificate::LocalMachine\my

Thumbprint                                Subject

----------                                -------

BC8354ABD4A274226D9B25887EEB33CF9C8FF4BA  CN=localhost

Create child certificate

6) PS C:\WINDOWS\system32> $mypwd = ConvertTo-SecureString -String "password" -Force -AsPlainText

7) PS C:\WINDOWS\system32> Get-ChildItem -Path cert:\localMachine\my\BC8354ABD4A274226D9B25887EEB33CF9C8FF4BA | Export-PfxCertificate -FilePath C:\FamLink\docs\certificates\child.pfx -Password $mypwd

    Directory: C:\FamLink\docs\certificates

Mode                 LastWriteTime         Length Name

----                 -------------         ------ ----

-a----         4/14/2022   3:03 PM           3597 child.pfx

7) PS C:\WINDOWS\system32> Get-ChildItem -Path cert:\localMachine\my\8C3452CA05A70484DA828FA91E54394C683A06E2



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