Xbase++

PBKDF2 - Derive Key from Password

See more Encryption Examples

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

LOCAL oCrypt
LOCAL cPw
LOCAL cPwCharset
LOCAL cHashAlg
LOCAL cSaltHex
LOCAL nIterationCount
LOCAL nOutputBitLen
LOCAL cEnc
LOCAL cHexKey

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

oCrypt := CreateObject("Chilkat.Crypt2")

cPw := "password"

cPwCharset := "utf-8"

//  Such as sha256, sha512
cHashAlg := "sha256"

//  16 bytes
cSaltHex := "78578E5A5D63CB0668AB39B21C8637FA"

nIterationCount := 100000

//  Derive a 256-bit key from the password.
nOutputBitLen := 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.)
cEnc := "hex"

cHexKey := oCrypt:Pbkdf2(cPw, cPwCharset, cHashAlg, cSaltHex, nIterationCount, nOutputBitLen, cEnc)

? cHexKey

//  Sample output:
//  AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70

oCrypt:destroy()