(PowerBuilder) 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

integer li_rc
oleobject loo_Crypt
string ls_Mac

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

loo_Crypt = create oleobject
// Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
li_rc = loo_Crypt.ConnectToNewObject("Chilkat.Crypt2")
if li_rc < 0 then
    destroy loo_Crypt
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// The output will be Hex, so set the EncodingMode:
loo_Crypt.EncodingMode = "hex"

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

// Set the HMAC key:
loo_Crypt.SetHmacKeyEncoded("The_API_Secret","ascii")
ls_Mac = loo_Crypt.HmacStringENC("The quick brown fox jumps over the lazy dog")
Write-Debug ls_Mac


destroy loo_Crypt