PowerShell script for generating the script to create public and private keys using the openssl tool

Create-OpenSslScript.ps1

param(
    [Parameter(Mandatory=$true)]
    [string] $Path,
    [Parameter(Mandatory=$true)]
    [string] $Name,
    [Parameter(Mandatory=$true)]
    [string] $OutFile   
)

# Set the paths for the certificate, private key, and PEM files
$certificatePath = "$Path\$Name.crt"
$certificateCsrPath = "$Path\$Name.csr"
$certificateKeyPath = "$Path\$Name.key"
$certificatePemPath = "$Path\$Name.pem"


$null = New-Item -Path $Path -Name $OutFile -ItemType File -Force


"# Generate an RSA private key (PKCS#8 format) and a certificate signing request (CSR)" | Out-File -Append -FilePath "$Path\$OutFile"
"openssl genpkey -algorithm RSA -out ""$certificateKeyPath"" -pkeyopt rsa_keygen_bits:2048" | Out-File -Append -FilePath "$Path\$OutFile"

"" | Out-File -Append -FilePath "$Path\$OutFile"

"openssl req -new -key ""$certificateKeyPath"" -out ""$certificateCsrPath"" -subj ""/CN=$Name""" | Out-File -Append -FilePath "$Path\$OutFile"

"" | Out-File -Append -FilePath "$Path\$OutFile"
"" | Out-File -Append -FilePath "$Path\$OutFile"


"# Generate a self-signed certificate using the CSR" | Out-File -Append -FilePath "$Path\$OutFile"

"openssl x509 -signkey ""$certificateKeyPath"" -in ""$certificateCsrPath"" -req -days 365 -out ""$certificatePath""" | Out-File -Append -FilePath "$Path\$OutFile"

"" | Out-File -Append -FilePath "$Path\$OutFile"
"" | Out-File -Append -FilePath "$Path\$OutFile"


"# Convert the private key to PEM format" | Out-File -Append -FilePath "$Path\$OutFile"

"openssl pkey -in ""$certificateKeyPath"" -out ""$certificatePemPath""" | Out-File -Append -FilePath "$Path\$OutFile"