(PowerBuilder) RSA Sign utf-8 Byte Representation of String

Demontstrates how to sign the utf-8 byte representation of a string.

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

integer li_rc
oleobject loo_PrivKey
integer li_Success
oleobject loo_Rsa
string ls_OriginalData
string ls_SigBase64

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

// Load an RSA private key for signing.
loo_PrivKey = create oleobject
// Use "Chilkat_9_5_0.PrivateKey" for versions of Chilkat < 10.0.0
li_rc = loo_PrivKey.ConnectToNewObject("Chilkat.PrivateKey")
if li_rc < 0 then
    destroy loo_PrivKey
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_PrivKey.LoadEncryptedPemFile("qa_data/pem/rsa_passwd.pem","passwd")
if li_Success <> 1 then
    Write-Debug loo_PrivKey.LastErrorText
    destroy loo_PrivKey
    return
end if

loo_Rsa = create oleobject
// Use "Chilkat_9_5_0.Rsa" for versions of Chilkat < 10.0.0
li_rc = loo_Rsa.ConnectToNewObject("Chilkat.Rsa")

loo_Rsa.ImportPrivateKeyObj(loo_PrivKey)

ls_OriginalData = "This is the string to be hashed an RSA signed."

// Indicate that we want the utf-8 byte representation of the string to be signed
loo_Rsa.Charset = "utf-8"

// We want the RSA signature in base64 format
loo_Rsa.EncodingMode = "base64"

ls_SigBase64 = loo_Rsa.SignStringENC(ls_OriginalData,"sha256")
Write-Debug ls_SigBase64


destroy loo_PrivKey
destroy loo_Rsa