(PowerBuilder) RSA Sign using Base64 Private Key

Signs a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string.

Note: This example requires Chilkat v11.0.0 or greater.

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

integer li_rc
integer li_Success
oleobject loo_PrivKey
oleobject loo_SbPem
oleobject loo_Rsa
oleobject loo_Bd
string ls_StrOriginal

li_Success = 0

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

loo_PrivKey = create oleobject
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

loo_SbPem = create oleobject
li_rc = loo_SbPem.ConnectToNewObject("Chilkat.StringBuilder")

loo_SbPem.AppendLine("-----BEGIN RSA PRIVATE KEY-----",1)
loo_SbPem.AppendLine("MIIC .... j5A==",1)
loo_SbPem.AppendLine("-----END RSA PRIVATE KEY-----",1)

li_Success = loo_PrivKey.LoadPem(loo_SbPem.GetAsString())
if li_Success = 0 then
    Write-Debug loo_PrivKey.LastErrorText
    destroy loo_PrivKey
    destroy loo_SbPem
    return
end if

loo_Rsa = create oleobject
li_rc = loo_Rsa.ConnectToNewObject("Chilkat.Rsa")

li_Success = loo_Rsa.UsePrivateKey(loo_PrivKey)
if li_Success = 0 then
    Write-Debug loo_Rsa.LastErrorText
    destroy loo_PrivKey
    destroy loo_SbPem
    destroy loo_Rsa
    return
end if

loo_Bd = create oleobject
li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData")

loo_Bd.AppendString("12345678","utf-8")

li_Success = loo_Rsa.SignRawBd(loo_Bd)
if li_Success = 0 then
    Write-Debug loo_Rsa.LastErrorText
    destroy loo_PrivKey
    destroy loo_SbPem
    destroy loo_Rsa
    destroy loo_Bd
    return
end if

// Get the base64 RSA signature.
Write-Debug loo_Bd.GetEncoded("base64")

li_Success = loo_Rsa.VerifyRawBd(loo_Bd)
if li_Success = 0 then
    Write-Debug loo_Rsa.LastErrorText
    destroy loo_PrivKey
    destroy loo_SbPem
    destroy loo_Rsa
    destroy loo_Bd
    return
end if

ls_StrOriginal = loo_Bd.GetString("utf-8")
Write-Debug ls_StrOriginal


destroy loo_PrivKey
destroy loo_SbPem
destroy loo_Rsa
destroy loo_Bd