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(PowerShell) How to Parse a X.509 Certificate and Extract its Public KeyDemonstrates how to load an X.509 certificate and extract the public key. Chilkat supports many certificate encodings:
Note: This example requires Chilkat v11.0.0 or greater.
Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll" $success = $false $cert = New-Object Chilkat.Cert # Load a DER (binary) encoded certificate. # To load from a .pem or .p7b, or any other file format that contains # just one certificate, call LoadFromFile in exactly the same way. # The LoadFromFile method automatically detects the format and loads the certificate. $success = $cert.LoadFromFile("qa_data/certs/testCert.cer") if ($success -eq $false) { $($cert.LastErrorText) exit } # Get the public key: $pubKey = New-Object Chilkat.PublicKey $cert.GetPublicKey($pubKey) # Examine the key type. # A PublicKey object can contain an RSA, ECC, or DSA public key. # The KeyType property will contain "rsa", "ecc", or "dsa". $("key type = " + $pubKey.KeyType) |
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