(PowerBuilder) Create PKCS7 Signed File (.p7m)

Demonstrates how to sign a file to create a .p7m that contains both the file contents and the signature.

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

integer li_rc
oleobject loo_Crypt
oleobject loo_CertStore
integer li_Success
oleobject loo_Cert
string ls_InFile
string ls_OutFile

// This example requires 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

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

// Load a PFX file into a certificate store object.
li_Success = loo_CertStore.LoadPfxFile("myPfx.pfx","pfxPassword")
if li_Success <> 1 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Crypt
    destroy loo_CertStore
    return
end if

// Get the certificate by subject common name.
// This should be the cert within the PFX that also
// has a private key (also stored within the PFX).
loo_Cert = loo_CertStore.FindCertBySubjectCN("myCert")
if loo_CertStore.LastMethodSuccess = 0 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Crypt
    destroy loo_CertStore
    return
end if

// Tell the crypt object to use the certificate for signing:
li_Success = loo_Crypt.SetSigningCert(loo_Cert)

// Sign a file, producing a .p7m as output.
// The input file is unchanged, the test.p7m contains the 
// contents of the input file and the signature.
ls_InFile = "test.txt"
ls_OutFile = "testp7m"
li_Success = loo_Crypt.CreateP7M(ls_InFile,ls_OutFile)
if li_Success <> 1 then
    Write-Debug loo_Crypt.LastErrorText
    destroy loo_Crypt
    destroy loo_CertStore
    return
end if

Write-Debug "Success!"


destroy loo_Crypt
destroy loo_CertStore