(PowerBuilder) Get a .pfx/.p12 Safe Bag Attribute

Demonstrates how to get the value of a private key or certificate safe bag attribute. Safe bag attributes are associated with a key or certificate. They are attributes stored in the .p12/.pfx alongside a key or certificate.

Note: This example requires Chilkat v9.5.0.83 or greater.

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

integer li_rc
oleobject loo_Pfx
integer li_Success
oleobject loo_Json
integer li_GetPrivateKeyAttr
integer li_PrivateKeyIdx

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

li_Success = loo_Pfx.LoadPfxFile("qa_data/pfx/test_ecdsa_secret.pfx","secret")
if li_Success = 0 then
    Write-Debug loo_Pfx.LastErrorText
    destroy loo_Pfx
    return
end if

loo_Json = loo_Pfx.LastJsonData()
loo_Json.EmitCompact = 0
Write-Debug loo_Json.Emit()
destroy loo_Json

// The LastJsonData provides information about the what is contained in the PFX after loading.
// For example:

// {
//   "authenticatedSafe": {
//     "contentInfo": [
//       {
//         "type": "Data",
//         "safeBag": [
//           {
//             "type": "pkcs8ShroudedKeyBag",
//             "attrs": {
//               "localKeyId": "16777216",
//               "keyContainerName": "{B99EB9E7-6AF7-42AF-A43A-D4B2225B7605}",
//               "msStorageProvider": "Microsoft Software Key Storage Provider"
//             }
//           }
//         ]
//       },
//       {
//         "type": "EncryptedData",
//         "safeBag": [
//           {
//             "type": "certBag",
//             "attrs": {
//               "localKeyId": "16777216"
//             },
//             "subject": "EE",
//             "serialNumber": "1a9da86df17ad411bb413b2aa724fe56fc71242d"
//           },
//           {
//             "type": "certBag",
//             "subject": "CA",
//             "serialNumber": "02742228acbf3dd2e71f403abd8281ab6d70d490"
//           }
//         ]
//       }
//     ]
//   }
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

// In the above JSON, we can see the .pfx contains one private key (a pkcs8ShroudedKeyBag) and two certificates (each in a certBag).
// The certificates in a .pfx/.p12 are typicaly a single certificate with associated private key, along with the other certificates
// in the chain of authentication.

// We can see that the private key has 3 safebag attributes: localKeyId, keyContainerName, and msStorageProvider.
// The certificate associated with the private key contains one safebag attribute: localKeyId.
// Notice the localKeyId is the same.  The localKeyId helps associate the private key that corresponds to the given certificate.

// Let's demonstrate the GetSafeBagAttr method:

// Get each of the private key safebag attributes:
li_GetPrivateKeyAttr = 1
li_PrivateKeyIdx = 0
Write-Debug "---- private key safebag attributes ----"
Write-Debug loo_Pfx.GetSafeBagAttr(li_GetPrivateKeyAttr,li_PrivateKeyIdx,"localKeyId")
Write-Debug loo_Pfx.GetSafeBagAttr(li_GetPrivateKeyAttr,li_PrivateKeyIdx,"keyContainerName")
Write-Debug loo_Pfx.GetSafeBagAttr(li_GetPrivateKeyAttr,li_PrivateKeyIdx,"storageProvider")

// Get the localKeyId attribute for the 1st certificate.
li_GetPrivateKeyAttr = 0
Write-Debug "---- cert safebag attributes ----"
Write-Debug loo_Pfx.GetSafeBagAttr(li_GetPrivateKeyAttr,0,"localKeyId")


destroy loo_Pfx