ASP Login with BasicCard

I want to develop an One Time Password system for Client using the blance reader to get the password and login to the ASP server (IIS 5.0).

The problem is that the Crypto API not so support in the ASP environment. How to call DES function on the server side ?

Here are some source code:

Error Then
'Do error handling here
End If
MyAes.Mode = 2 'Use CBC mode
If 0 Error Then
'Do error handling here
End If
MyAes.IV = "1234567890123456" 'use this as IV
If 0 Error Then
'Do error handling here
End If

temp = ""
For x = 0 To 31
temp = temp & PlainData(x) & " "
Next
response.write "Data: " & temp & ""

encData = MyAes.Encrypt(PlainData)

tempOutput = ""
For x = 0 To 31
tempOutput = tempOutput + encData(x)
Next

response.write temp

If 0 Error Then
'Do error handling here
End If

Rem Destroy encryption context and create new decryption context
Rem This is necessary iv CBC mode is used to restore original IV
Rem or any time you want to use different keys.
Set MyAes = nothing

set MyAes = Server.CreateObject("zccryptx.zcAES")

MyAes.Key = Key
Error = MyAes.LastError
If 0 Error Then
'Do error handling here
End If
MyAes.Mode = 2 'Use CBC mode
If 0 Error Then
'Do error handling here
End If
MyAes.IV = "1234567890123456" 'use this as IV
If 0 Error Then
'Do error handling here
End If
dencdata1 = MyAes.Decrypt(encData)
If 0 Error Then
'Do error handling here
End If

Rem Now DencData1 should contain same data as PlainData
Rem ------
Rem This should do the same without destroying szAES object.
Rem Just restore IV to required value.
MyAes.IV = "1234567890123456" 'use this as IV
If 0 Error Then
'Do error handling here
End If
DencData2 = MyAes.Decrypt(encData)
If 0 Error Then
'Do error handling here
End If
Rem Now DencData2 should contain same data as PlainData
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Follow Ups:

• Re: ASP Login with BasicCard zeitcontrol 06:50:10 06/11/04 (0)