(Classic ASP) Base64url Encoding
Base64url encoding is identical to base64 encoding except it uses non-reserved URL characters (e.g. '–' is used instead of '+', and '_' is used instead of '/') and it omits the padding characters. Note: This example requires Chilkat v11.0.0 or greater.
<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.
set pkey = Server.CreateObject("Chilkat.PrivateKey")
set rsa = Server.CreateObject("Chilkat.Rsa")
success = rsa.GenKey(1024,pkey)
success = rsa.UsePrivateKey(pkey)
strData = "This is the string to be signed."
' Get the signature in base64url
rsa.EncodingMode = "base64url"
strSig = rsa.SignStringENC(strData,"sha256")
Response.Write "<pre>" & Server.HTMLEncode( strSig) & "</pre>"
%>
</body>
</html>
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