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Classic ASP

PBKDF2 - Derive Key from Password

See more Encryption Examples

Demonstrates how to derive a symmetric encryption key from a password using PBKDF2.

Chilkat Classic ASP Downloads

Classic ASP
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

set crypt = Server.CreateObject("Chilkat.Crypt2")

pw = "password"

pwCharset = "utf-8"

' Such as sha256, sha512
hashAlg = "sha256"

' 16 bytes
saltHex = "78578E5A5D63CB0668AB39B21C8637FA"

iterationCount = 100000

' Derive a 256-bit key from the password.
outputBitLen = 256

' 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>"

' Sample output:
' AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70

%>
</body>
</html>