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PBKDF1 - Derive Key from Password

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Demonstrates how to derive a symmetric encryption key from a password using PBKDF1. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

It also matches the output produced by the .NET Framework using this C# code:

            byte[] salt = new byte[] { 0x78, 0x57, 0x8E, 0x5A, 0x5D, 0x63, 0xCB, 0x06 };
            PasswordDeriveBytes cdk = new PasswordDeriveBytes("password", salt);

            cdk.IterationCount = 1000;
            cdk.HashName = "SHA1";

            // generate a 16-byte key
            byte[] key = cdk.GetBytes(16);

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; This example assumes the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oCrypt = ObjCreate("Chilkat.Crypt2")

Local $sHexKey
; http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

Local $sPw = "password"
Local $sPwCharset = "ansi"
; Hash algorithms may be: sha1, md2, md5, etc.
Local $sHashAlg = "sha1"
; The salt should be 8 bytes:
Local $saltHex = "78578E5A5D63CB06"
Local $iterationCount = 1000
; Derive a 128-bit key from the password.
Local $iOutputBitLen = 128

; 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.)
Local $sEnc = "hex"

$sHexKey = $oCrypt.Pbkdf1($sPw,$sPwCharset,$sHashAlg,$saltHex,$iterationCount,$iOutputBitLen,$sEnc)

ConsoleWrite($sHexKey & @CRLF)

; The output should have this value:
; DC19847E05C64D2FAF10EBFB4A3D2A2