(VBScript) RSA Encrypt with Modulus and Exponent

Demonstrates how to RSA encrypt with a given modulus and exponent.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

set rsa = CreateObject("Chilkat_9_5_0.Rsa")

success = rsa.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    outFile.WriteLine(rsa.LastErrorText)
    WScript.Quit
End If

'  Assuming you already have a base64 modulus and exponent,
'  wrap it in XML like this:
modulus = "qMBRpdYrAy5aMmo31NErUizh5sbweguSmh4wlK6uJEIDl+kwTlROnE34KOFExeTbJSX0WygPi+vWl0yNq7buIMUKpytossAAWut5khO3CQJxTk7G2gnEPNUUXHiExGgNrLzcSLv8YIlfVALhoRWyC67KOL+a+3taNq3h+BHeWhM="
exponent = "AQAB"

set xml = CreateObject("Chilkat_9_5_0.Xml")
xml.Tag = "RSAPublicKey"
xml.NewChild2 "Modulus",modulus
xml.NewChild2 "Exponent",exponent

'  Encrypt with the public key.
publicKey = xml.GetXml()
success = rsa.ImportPublicKey(publicKey)

usePrivateKey = 0
plainText = "message in a bottle"

rsa.EncodingMode = "base64"
encryptedStrBase64 = rsa.EncryptStringENC(plainText,usePrivateKey)
outFile.WriteLine(encryptedStrBase64)

outFile.Close