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VBScript

Generate an ECDSA Key

See more ECC Examples

Demonstrates how to generate an ECDSA key.

Chilkat VBScript Downloads

VBScript
Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

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

' Create a Fortuna PRNG and seed it with system entropy.
' This will be our source of random data for generating the ECC private key.
set fortuna = CreateObject("Chilkat.Prng")
entropy = fortuna.GetEntropy(32,"base64")
success = fortuna.AddEntropy(entropy,"base64")

set ecc = CreateObject("Chilkat.Ecc")

' Generate a random ECC private key on the secp256r1 curve.
' Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1.

set privKey = CreateObject("Chilkat.PrivateKey")
success = ecc.GenKey("secp256r1",fortuna,privKey)
If (success = 0) Then
    outFile.WriteLine(ecc.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine(privKey.GetXml())

' Save the private key to PKCS8 encrypted PEM
' (The private key can be saved in a variety of different formats. See the online reference documentation.)
success = privKey.SavePkcs8EncryptedPemFile("pemPassword","myPemFiles/eccKey123.pem")
If (success <> 1) Then
    outFile.WriteLine(privKey.LastErrorText)
End If

outFile.WriteLine("finished.")

outFile.Close