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Using a .NET .snk Key File for RSA EncryptionDemonstrates 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).
Dim rsa As New Chilkat.Rsa() Dim success As Boolean success = rsa.UnlockComponent("Anything for 30-day trial") If (success <> true) Then MsgBox("RSA component unlock failed") Exit Sub End If ' Load a public/private key pair from a .snk key file. Dim xmlKey As String xmlKey = rsa.SnkToXml("chilkat2.snk") TextBox1.Text = TextBox1.Text & xmlKey & vbCrLf ' The xmlKey contains both public and private keys. ' Import either the public or private for encrypting or ' decrypting. rsa.ImportPrivateKey(xmlKey) Dim bUsePrivateKey As Boolean bUsePrivateKey = true Dim encryptedText As String encryptedText = rsa.EncryptStringENC("Hello World!",bUsePrivateKey) TextBox1.Text = TextBox1.Text & encryptedText & vbCrLf ' Now decrypt with the public key: rsa.ImportPublicKey(xmlKey) bUsePrivateKey = false Dim decryptedText As String decryptedText = rsa.DecryptStringENC(encryptedText,bUsePrivateKey) TextBox1.Text = TextBox1.Text & decryptedText & vbCrLf ' Note: We could have just as well encrypted using the public key ' and decrypted using the private key. |
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