(VB.NET) 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
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
Dim crypt As New Chilkat.Crypt2
Dim password As String = "correcthorsebatterystaple"
' Derive from the utf-8 byte representation of the password.
Dim charset As String = "utf-8"
Dim hashAlg As String = "sha256"
crypt.EncodingMode = "hex"
Dim saltHex As String = crypt.GenRandomBytesENC(16)
Dim iterationCount As Integer = 310000
' Derive a 256-bit key from the password.
Dim outputBitLen As Integer = 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.)
Dim enc As String = "hex"
Dim hexKey As String = crypt.Pbkdf2(password,charset,hashAlg,saltHex,iterationCount,outputBitLen,enc)
Debug.WriteLine(hexKey)
' Sample output:
' 597734C894FF89CFD3B93D925462C24E97724BCB118F6FC919007F5ABC27E768
|
