(VBScript) HMAC with SHA256

Demonstrates how to compute a HMAC SHA256 keyed-hash message authentication code.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = CreateObject("Chilkat.Crypt2")

' The output will be Hex, so set the EncodingMode:
crypt.EncodingMode = "hex"

' Set the hash algorithm:
' Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.HashAlgorithm = "sha256"

' Set the HMAC key:
crypt.SetHmacKeyEncoded "The_API_Secret","ascii"
mac = crypt.HmacStringENC("The quick brown fox jumps over the lazy dog")
outFile.WriteLine(mac)

outFile.Close