PBKDF2 - Derive Key from Password

Demonstrates how to derive a symmetric encryption key from a password using PBKDF2. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

Download Chilkat Crypt ActiveX

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
set crypt = Server.CreateObject("Chilkat.Crypt2")

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

End If

'  http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

pw = "password"
pwCharset = "ansi"
'  Hash algorithms may be: sha1, md2, md5, etc.
hashAlg = "sha1"
'  The salt should be 8 bytes:
saltHex = "78578E5A5D63CB06"
iterationCount = 2048
'  Derive a 192-bit key from the password.
outputBitLen = 192

'  The derived key is returned as a hex or base64 encoded string.
'  (Note: The salt argument must be a string that also uses
'  the same encoding.)
enc = "hex"

hexKey = crypt.Pbkdf2(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc)

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

'  The output should have this value:
'  BFDE6BE94DF7E11DD409BCE20A0255EC327CB936FFE93643


%>
</body>
</html>