(Tcl) PBKDF2 Key Derivation
Demonstrates AES secret key derivation from a password using PBDKF2. For more information, see https://www.chilkatsoft.com/key_derivation_pbkdf2.asp
load ./chilkat.dll
# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
set crypt [new_CkCrypt2]
set password "correcthorsebatterystaple"
# Derive from the utf-8 byte representation of the password.
set charset "utf-8"
set hashAlg "sha256"
CkCrypt2_put_EncodingMode $crypt "hex"
set saltHex [CkCrypt2_genRandomBytesENC $crypt 16]
set iterationCount 310000
# Derive a 256-bit key from the password.
set 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.)
set enc "hex"
set hexKey [CkCrypt2_pbkdf2 $crypt $password $charset $hashAlg $saltHex $iterationCount $outputBitLen $enc]
puts "$hexKey"
# Sample output:
# 597734C894FF89CFD3B93D925462C24E97724BCB118F6FC919007F5ABC27E768
delete_CkCrypt2 $crypt
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