Using a .NET .snk Key File for RSA Encryption

Demonstrates how to load and use a .NET .snk key file for RSA encryption. SNK files are created by the Microsoft .NET Strong Name Tool (Sn.exe).

Download 32-bit Chilkat RSA ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
set rsa = Server.CreateObject("Chilkat.Rsa")

success = rsa.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    Response.Write "RSA component unlock failed" & "<br>"

End If

'  Load a public/private key pair from a .snk key file.
xmlKey = rsa.SnkToXml("chilkat2.snk")

Response.Write Server.HTMLEncode( xmlKey) & "<br>"

'  The xmlKey contains both public and private keys.
'  Import either the public or private for encrypting or
'  decrypting.
rsa.ImportPrivateKey xmlKey

bUsePrivateKey = 1
encryptedText = rsa.EncryptStringENC("Hello World!",bUsePrivateKey)

Response.Write Server.HTMLEncode( encryptedText) & "<br>"

'  Now decrypt with the public key:
rsa.ImportPublicKey xmlKey
bUsePrivateKey = 0
decryptedText = rsa.DecryptStringENC(encryptedText,bUsePrivateKey)

Response.Write Server.HTMLEncode( decryptedText) & "<br>"

'  Note: We could have just as well encrypted using the public key
'  and decrypted using the private key.

%>
</body>
</html>