Classic ASP

Load EC Public Key from X,Y Values

Demonstrates how to load an EC public key from X and Y values.

Chilkat Classic ASP Downloads

Classic ASP

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

' We have the following x and y values in base64 (for an EC point on the P-256 curve).
x = "Dn7uB1O7kgk74G6qfQwFJESeDnxO6lLjGZFWZJE16tw"
y = "iOWA5DInzK6nuUGvHJbMVq1Dpj248FqSV2teN3HzmhU"

' Build a JWK that looks like this:

' {
'   "kty": "EC",
'   "crv": "P-256",
'   "x": "Dn7uB1O7kgk74G6qfQwFJESeDnxO6lLjGZFWZJE16tw",
'   "y": "iOWA5DInzK6nuUGvHJbMVq1Dpj248FqSV2teN3HzmhU"
' }

set json = Server.CreateObject("Chilkat.JsonObject")
success = json.UpdateString("kty","EC")
success = json.UpdateString("crv","P-256")
success = json.UpdateString("x",x)
success = json.UpdateString("y",y)

' Load from the JWK.
set pubkey = Server.CreateObject("Chilkat.PublicKey")
success = pubkey.LoadFromString(json.Emit())
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( pubkey.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

%>
</body>
</html>