(Visual FoxPro) PBKDF2 - Derive Key from Password
Demonstrates how to derive a symmetric encryption key from a password using PBKDF2. For more information, see https://www.chilkatsoft.com/key_derivation_pbkdf2.asp
LOCAL loCrypt
LOCAL lcPw
LOCAL lcPwCharset
LOCAL lcHashAlg
LOCAL lcSaltHex
LOCAL lnIterationCount
LOCAL lnOutputBitLen
LOCAL lcEnc
LOCAL lcHexKey
* This example assumes the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.
loCrypt = CreateObject('Chilkat.Crypt2')
lcPw = "password"
lcPwCharset = "utf-8"
* Such as sha256, sha512
lcHashAlg = "sha256"
* 16 bytes
lcSaltHex = "78578E5A5D63CB0668AB39B21C8637FA"
lnIterationCount = 100000
* Derive a 256-bit key from the password.
lnOutputBitLen = 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.)
lcEnc = "hex"
lcHexKey = loCrypt.Pbkdf2(lcPw,lcPwCharset,lcHashAlg,lcSaltHex,lnIterationCount,lnOutputBitLen,lcEnc)
? lcHexKey
* Sample output:
* AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70
RELEASE loCrypt
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