PowerShell Requires Chilkat v11.0.0+

RSASSA-PSS Algorithm with SHA256 Hashing

See more RSA Examples

RSA encrypt a SHA256 hash with OAEP padding. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

$privkey = New-Object Chilkat.PrivateKey

#  Load the private key object from a PEM file.
#  (To load from a PEM string, call LoadPem instead.)
$success = $privkey.LoadPemFile("somePath/myPrivateKey.pem")
if ($success -eq $false) {
    $($privkey.LastErrorText)
    exit
}

$rsa = New-Object Chilkat.Rsa
#  Use RSA-PSS by setting PkcsPadding = $false
$rsa.PkcsPadding = $false
#  Use SHA256
$rsa.OaepHash = "SHA-256"

$rsa.UsePrivateKey($privkey)

#  Generate a base64 signature.
$rsa.EncodingMode = "base64"

$sigStr = $rsa.SignStringENC("String to be signed","SHA-256")
if ($rsa.LastMethodSuccess -eq $false) {
    $($rsa.LastErrorText)
    exit
}

$("Signature: " + $sigStr)