(VBScript) RSA Sign using Base64 Private Key

Signs a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string.

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

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

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.PrivateKey")
set privKey = CreateObject("Chilkat.PrivateKey")

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbPem = CreateObject("Chilkat.StringBuilder")
success = sbPem.AppendLine("-----BEGIN RSA PRIVATE KEY-----",1)
success = sbPem.AppendLine("MIIC .... j5A==",1)
success = sbPem.AppendLine("-----END RSA PRIVATE KEY-----",1)

success = privKey.LoadPem(sbPem.GetAsString())
If (success <> 1) Then
    outFile.WriteLine(privKey.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Rsa")
set rsa = CreateObject("Chilkat.Rsa")

success = rsa.ImportPrivateKeyObj(privKey)
If (success <> 1) Then
    outFile.WriteLine(rsa.LastErrorText)
    WScript.Quit
End If

rsa.EncodingMode = "base64"
strSigned = rsa.OpenSslSignStringENC("12345678")
outFile.WriteLine(strSigned)

strOriginal = rsa.OpenSslVerifyStringENC(strSigned)
outFile.WriteLine(strOriginal)

outFile.Close