Classic ASP
Classic ASP
URL Signing for Google Maps API
See more Encryption Examples
Demonstrates how to sign a URL for the Google Maps API.Chilkat Classic ASP Downloads
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
set crypt = Server.CreateObject("Chilkat.Crypt2")
' The output will be modified Base64.
' Modified Base64 for URLs replaces the '+' and '/' characters
' of standard Base64 with '-' and '_' respectively, so that these
' Base64 signatures no longer need to be URL-encoded.
crypt.EncodingMode = "modBase64"
' Set the hash algorithm to sha-1
crypt.HashAlgorithm = "sha-1"
crypt.MacAlgorithm = "hmac"
' Set the HMAC key (this is the private key provided by Google)
success = crypt.SetMacKeyEncoded("vNIXE0xscrmjlyV-12Nj_BvUPaw=","modBase64")
' Compute the URL signature
sig = crypt.MacStringENC("/maps/api/geocode/json?address=New+York&sensor=false&client=clientID")
' The result should be KrU1TzVQM7Ur0i8i7K3huiw3MsA=
Response.Write "<pre>" & Server.HTMLEncode( sig) & "</pre>"
%>
</body>
</html>