VBScript

RSA OAEP Padding

See more RSA Examples

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding. 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 example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

set rsa = CreateObject("Chilkat.Rsa")

' RSA public key in XML format:
pubKeyXml = "<RSAPublicKey><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAPublicKey>"

set pubKey = CreateObject("Chilkat.PublicKey")
success = pubKey.LoadFromString(pubKeyXml)
If (success = 0) Then
    outFile.WriteLine(pubKey.LastErrorText)
    WScript.Quit
End If

success = rsa.UsePublicKey(pubKey)
If (success = 0) Then
    outFile.WriteLine(rsa.LastErrorText)
    WScript.Quit
End If

' To use Optimal Asymmetric Encryption Padding (OAEP) padding,
' simply set the PkcsPadding property to 0
rsa.PkcsPadding = 0

' Encrypt a string and return the encrypted data base64-encoded:
rsa.EncodingMode = "base64"

plainText = "RSA Encryption should be easy."

usePrivateKey = 0
encryptedStr = rsa.EncryptStringENC(plainText,usePrivateKey)
outFile.WriteLine(encryptedStr)

outFile.Close