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Visual Basic 6.0 Examples

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(Visual Basic 6.0) Set .pfx/.p12 Safe Bag Attributes

Demonstrates how to set safebag attributes in a .pfx/.p12. This example creates a .pfx from a .pem containing a private key and certificates, but also sets PFX safebag attributes before writing the .pfx.

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ActiveX for 32-bit and 64-bit Windows

' We have a PEM containing one private key, and two certificates:
' The private key is an ECDSA private key.
' The private key is associated with the 1st certificate.
' The 2nd certificate is the issuer of the 1st certificate.

' -----BEGIN PRIVATE KEY-----
' ME0CAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEMzAxAgEBBCDgAn4Dal+0iEhIsYBk
' 6SdSR344vyj0suhOIxsjmM19s6AKBggqhkjOPQMBBw==
' -----END PRIVATE KEY-----
' -----BEGIN CERTIFICATE-----
' MIIBXzCCAQSgAwIBAgIUGp2obfF61BG7QTsqpyT+VvxxJC0wCgYIKoZIzj0EAwIw
' DTELMAkGA1UEAwwCQ0EwHhcNMjAwMzI5MTU1MTEwWhcNMzAwMzI3MTU1MTEwWjAN
' MQswCQYDVQQDDAJFRTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABEil+DhBUss8
' kMCjEWvZHA+jdy1mQ76a2HFd+5p+AcFGQxNeG8/HXZax7FFzcrczWrli25R8P8j1
' cqhwPY4HtwujQjBAMB0GA1UdDgQWBBTenwm6x4A4W5BzZ2OckKA2IFtPSTAfBgNV
' HSMEGDAWgBTx1U/gWiRhAASl6FV04DxP3XmcazAKBggqhkjOPQQDAgNJADBGAiEA
' rkqbz5t1M/CjqXSKE5ebBLQ3npF+q7GRC8C2ovDi/xoCIQDGve7OP/ppIDcCNonr
' +WSRf5M/6Wvw1lnEsAXf3nLTeQ==
' -----END CERTIFICATE-----
' -----BEGIN CERTIFICATE-----
' MIIBcDCCARWgAwIBAgIUAnQiKKy/PdLnH0A6vYKBq21w1JAwCgYIKoZIzj0EAwIw
' DTELMAkGA1UEAwwCQ0EwHhcNMjAwMzI5MTU1MTEwWhcNMzAwMzI3MTU1MTEwWjAN
' MQswCQYDVQQDDAJDQTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABPB6yVvqt8cL
' EneRtnjoi87H0ATi+JP1w2qkz4GLOaPtFxAnV0LdQCuN91SGbAlKrSkhFyWWimjh
' Rqe9+b/1WCijUzBRMB0GA1UdDgQWBBTx1U/gWiRhAASl6FV04DxP3XmcazAfBgNV
' HSMEGDAWgBTx1U/gWiRhAASl6FV04DxP3XmcazAPBgNVHRMBAf8EBTADAQH/MAoG
' CCqGSM49BAMCA0kAMEYCIQCcIfssfrOruVYvqhxbLGeyc5ppEX53zUU35wIE2t7C
' fAIhAKhOTEvN+pdEn+cNwW3AEi7D08ZUQx3P80i4EnFPs0OQ
' -----END CERTIFICATE-----

Dim pfx As New ChilkatPfx
Dim sbPem As New ChilkatStringBuilder
Dim success As Long
success = sbPem.LoadFile("qa_data/pfx/test_ecdsa.pem","utf-8")
If (success = 0) Then
    Debug.Print "Failed to load the PEM file."
    Exit Sub
End If

' The PEM in this example is unencrypted.  There is no password.
Dim password As String
password = ""
success = pfx.LoadPem(sbPem.GetAsString(),password)
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

' Let's add some safebag attributes for the private key...
Dim forPrivateKey As Long
forPrivateKey = 1
Dim keyIdx As Long
keyIdx = 0
success = pfx.SetSafeBagAttr(forPrivateKey,keyIdx,"localKeyId","16777216","decimal")
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

success = pfx.SetSafeBagAttr(forPrivateKey,keyIdx,"keyContainerName","{B99EB9E7-6AF7-42AF-A43A-D4B2225B7605}","ascii")
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

success = pfx.SetSafeBagAttr(forPrivateKey,keyIdx,"storageProvider","Microsoft Software Key Storage Provider","ascii")
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

' Add the localKeyId safebag attribute to the 1st certificate.
forPrivateKey = 0
Dim certIdx As Long
certIdx = 0
success = pfx.SetSafeBagAttr(forPrivateKey,certIdx,"localKeyId","16777216","decimal")
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

' Write the pfx.
success = pfx.ToFile("secret","qa_output/ee.pfx")
If (success = 0) Then
    Debug.Print pfx.LastErrorText
    Exit Sub
End If

' Let's load the .pfx we just wrote to see if the safebag attributes exist.
Dim pfx2 As New ChilkatPfx
success = pfx2.LoadPfxFile("qa_output/ee.pfx","secret")
If (success = 0) Then
    Debug.Print pfx2.LastErrorText
    Exit Sub
End If

' After calling LoadPfxFile, the LastJsonData shows what's in the loaded PFX.
Dim json As ChilkatJsonObject
Set json = pfx2.LastJsonData()
json.EmitCompact = 0
Debug.Print json.Emit()

' The LastJsonData shows what's in the PFX just loaded:

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

 

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