How to Create Self-Signed Certificates Using PowerShell! Within 2 Minutes!
Step-by-step PowerShell commands with explanations.
Generate the Certificate –
$cert = New-SelfSignedCertificate -DnsName "test.com" -CertStoreLocation "cert:\LocalMachine\My"
$cert – Variable to store the value
New-SelfSignedCertificate – PowerShell command
-DnsName – Certificate Name
CertStoreLocation - certificate store (This cannot be file path)
Export the Certificate –
Export-PfxCertificate -Cert $cert -FilePath "D:\test\certificate.pfx" -Password (ConvertTo-SecureString -String "password" -Force -AsPlainText)
Export-PfxCertificate - PowerShell command
-Cert – Certificate Location
-FilePath – where you want to export the certificate
-Password – Password for .pfx file
Export the Private Key–
openssl pkcs12 -in "D:\test\certificate.pfx" -nocerts -out "D:\test\privateKey.pem" -nodes -passin pass:password
-in - Specifies the input .pfx file.
-nocerts - Tells OpenSSL to only extract the private key, without the certificate.
-out - Specifies the output file for the private key.
-nodes - Ensures that the private key is not encrypted.
-passin – Provide the export password.
Export the Certificate –
openssl pkcs12 -in "D:\test\certificate.pfx" -clcerts -nokeys -out "D:\test\certificate.pem"-passin pass:password
-in - Specifies the input .pfx file.
clcerts option tells OpenSSL to only output the client certificate.
-nokeys - Tells OpenSSL to only extract the certificate, without the private key.
-out - Specifies the output file for the PEM file.
-passin – Provide the export password.
Convert PEM to CRT Format–
openssl x509 -outform der -in "D:\test\certificate.pem" -out "D:\test\certificate.crt"
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