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Export a Public Key as XML

Demonstrates the Chilkat PublicKey.GetXml method, which returns the public key in Chilkat XML format. It takes no arguments; the exact representation (for example an RSAPublicKey element) depends on the key type.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The XML key format comes from the .NET/XML-DSIG world; exporting to it lets you hand a public key to .NET code or a system built around XML signatures. It is the inverse of LoadXml-style loading. Because a public key is not secret, this XML can be shared freely.

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

$success = $false

#  Load a public key to export.  LoadFromFile inspects the content, so it accepts DER, PEM, XML,
#  JWK, and other supported representations.
$pubKey = New-Object Chilkat.PublicKey
$success = $pubKey.LoadFromFile("qa_data/public.pem")
if ($success -eq $false) {
    $($pubKey.LastErrorText)
    exit
}

#  Export the public key in Chilkat XML format.  The representation depends on the key type (for
#  example an RSAPublicKey element for RSA).
$xml = $pubKey.GetXml()
if ($pubKey.LastMethodSuccess -eq $false) {
    $($pubKey.LastErrorText)
    exit
}

$($xml)