(Classic ASP) RSA Sign utf-8 Byte Representation of String

Demontstrates how to sign the utf-8 byte representation of a string.

Note: This example requires Chilkat v11.0.0 or greater.

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ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

' Load an RSA private key for signing.
set privKey = Server.CreateObject("Chilkat.PrivateKey")
success = privKey.LoadEncryptedPemFile("qa_data/pem/rsa_passwd.pem","passwd")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( privKey.LastErrorText) & "</pre>"
    Response.End
End If

set rsa = Server.CreateObject("Chilkat.Rsa")
success = rsa.UsePrivateKey(privKey)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( rsa.LastErrorText) & "</pre>"
    Response.End
End If

originalData = "This is the string to be hashed an RSA signed."

' Indicate that we want the utf-8 byte representation of the string to be signed
rsa.Charset = "utf-8"

' We want the RSA signature in base64 format
rsa.EncodingMode = "base64"

sigBase64 = rsa.SignStringENC(originalData,"sha256")
Response.Write "<pre>" & Server.HTMLEncode( sigBase64) & "</pre>"

%>
</body>
</html>