(ASP) Convert DSA DER Private Key to PEM

Converts a DSA private key from DER format to PEM. Demonstrates how to write both encrypted and unencrypted PEM formatted private keys.

Download Chilkat DSA ActiveX

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


set dsa = Server.CreateObject("Chilkat.Dsa")

success = dsa.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode(dsa.LastErrorText) & "</pre>"

End If

'  Load a DER private key.
success = dsa.FromDerFile("dsa_priv.der")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode(dsa.LastErrorText) & "</pre>"

End If

'  Save to unencrypted PEM:
pemStr = dsa.ToPem()
success = dsa.SaveText(pemStr,"dsa_priv.pem")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode(dsa.LastErrorText) & "</pre>"

End If

'  Save to encrypted PEM:
pemStr = dsa.ToEncryptedPem("myPassword")
success = dsa.SaveText(pemStr,"dsa_privEncrypted.pem")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode(dsa.LastErrorText) & "</pre>"

End If

Response.Write "<pre>" & Server.HTMLEncode("Finished!") & "</pre>"
%>
</body>
</html>