(Xojo Plugin) PKCS7 Decrypt Using .pfx or .p12 Data

Demonstrates how to decrypt MIME using a specifc PFX file (.pfx or .p12) for the source of certificate(s) and private key(s).

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

Dim mime As New Chilkat.Mime

// Load the MIME
Dim success As Boolean
success = mime.LoadMimeFile("encrypted.mim")
If (success = False) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

Dim pfxData As MemoryBlock
Dim fac As New Chilkat.FileAccess
pfxData = fac.ReadEntireFile("pfxStore/myPkcs12.p12")
If (fac.LastMethodSuccess <> True) Then
    System.DebugLog(fac.LastErrorText)
    Return
End If

Dim pfxPassword As String
pfxPassword = "myPassword"
success = mime.DecryptUsingPfxData(pfxData,pfxPassword)
If (success = False) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

// Display the decrypted MIME:
System.DebugLog(mime.GetMime())

// Note: The MIME to be decrypted should look something like this
// when viewed in a text editor:
// (Note that the Content-Type is application/x-pkcs7-mime)

// Content-Disposition: attachment; filename="smime.p7m"
// Content-Transfer-Encoding: base64
// Content-Type: application/x-pkcs7-mime;
//  name="smime.p7m"
// 
// MIICRAYJKoZIhvcNAQcDoIICNTCCAjECAQAxggHIMIIBxAIBADCBqzCBlTELMAkGA1UEBhMCVVMx
// CzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UEChMVVGhlIFVTRVJU
// UlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVzZXJ0cnVzdC5jb20xHTAbBgNVBAMT
// FFVUTi1VU0VSRmlyc3QtT2JqZWN0AhEA5vxolKNrYgp1Z7ABICdK+zANBgkqhkiG9w0BAQEFAASC
// AQAJ68jTh3u3ovsOuz1aHXTV90GBB6DMfCdx0bZ85trSvDXBevMOtQdctz653de8EB2xU4RlaPQa
// oBpF8G01PMaKezd+FGLbhm7gmKl7boej3BboUzM4wrwjc8qHTGc/haT1ZA3jUU3DR4emVXNmRgWc
// FDU5Dnkf+Z2YXQop9wPCf1Ng+8LLjBX9yxgXP1ZyFDe9vUnSkk2fmZatEY2Y6eWHNbrj6q4F40qN
// PAyZW1rJSFmKTSPSzv7S0VWBMh+FgUKtqk4I6/+zhneLYeJBZFskmMIGFpgKdgrN7vbbr1a2gv/M
// PbHUxwKMD4KZ2auyuGKMVLBOm+n8v5f8EegloL/UMGAGCSqGSIb3DQEHATAZBggqhkiG9w0DAjAN
// AgE6BAgcohHNLdl9FoA4q22x8vXs05wuScRgLhwMOzvdGQkBJx+6iQDBuoCVxF8sQ35g+0PPxN3M
// 6Zw6nI1gSIIKBS3ZjtI=