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(Classic ASP) Load EC Public Key from X,Y ValuesDemonstrates how to load an EC public key from X and Y values.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' 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" ' } ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject") 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. ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.PublicKey") 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> |
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