Chilkat Examples

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Classic ASP Examples

ASN.1
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(Classic ASP) DSA Generate Key

Generates a DSA public/private key pair and saves to PEM and DER file formats (both encrypted and non-encrypted).

An encrypted DSA PEM looks like this:

-----BEGIN DSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,9DAFD5C4CD62A5D0

QwDdp66sB0qKXQli7FbVcKL/eo3wu7kGRlV2sI8XbkNa1RTLiwnwTWDB0dqyWRQ8
...
Bx0HVfxKiNgCbL6BQEnYD+GOmMcckuj9Uhgloe/YuXCIDJBGhjUt/li3hvR/PXeC

V2xxNl1XKBE88njqi+UXt4vjGVNLpvXM
-----END DSA PRIVATE KEY-----

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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


set dsa = Server.CreateObject("Chilkat_9_5_0.Dsa")

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

End If

'  Call GenKey to generate a new DSA key.
'  The number of bits should be at least 1024 and a multiple
'  of 64.   Typical values are either 1024 or 2048.
'  DSA key generation is compute intensive and may take
'  a short while to complete.
success = dsa.GenKey(2048)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( dsa.LastErrorText) & "</pre>"

End If

'  Extract the private and public parts to PEM or DER format
'  and save to files...

'  First for the public key...
'  The public key never needs to be encrypted.

'  Save the public key in PEM format:
pemStr = dsa.ToPublicPem()
'  This example will not check the return value of SaveText...
success = dsa.SaveText(pemStr,"dsa_pub.pem")

'  Save the public key in DER format:
success = dsa.ToPublicDerFile("dsa_pub.der")

bPublicOnly = 1
'  Save to XML
xmlStr = dsa.ToXml(bPublicOnly)
success = dsa.SaveText(xmlStr,"dsa_pub.xml")

'  ------------------------------------
'  Now for the private key....
'  ------------------------------------

'  Unencrypted PEM:
pemStr = dsa.ToPem()
success = dsa.SaveText(pemStr,"dsa_priv.pem")

'  Encrypted PEM:
pemStr = dsa.ToEncryptedPem("myPassword")
success = dsa.SaveText(pemStr,"dsa_privEncrypted.pem")

'  DER:
success = dsa.ToDerFile("dsa_priv.der")

'  XML:
bPublicOnly = 0
xmlStr = dsa.ToXml(bPublicOnly)
success = dsa.SaveText(xmlStr,"dsa_priv.xml")

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

%>
</body>
</html>

 

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