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PBKDF2 - Derive Key from Password

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

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

$oCrypt = ObjCreate("Chilkat.Crypt2")

Local $sPw = "password"

Local $sPwCharset = "utf-8"

;  Such as sha256, sha512
Local $sHashAlg = "sha256"

;  16 bytes
Local $saltHex = "78578E5A5D63CB0668AB39B21C8637FA"

Local $iterationCount = 100000

;  Derive a 256-bit key from the password.
Local $iOutputBitLen = 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.)
Local $sEnc = "hex"

Local $sHexKey = $oCrypt.Pbkdf2($sPw,$sPwCharset,$sHashAlg,$saltHex,$iterationCount,$iOutputBitLen,$sEnc)

ConsoleWrite($sHexKey & @CRLF)

;  Sample output:
;  AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70