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(VB.NET) PKCS7 Encrypt MIMEEncrypt MIME using a digital certificate to create PKCS7 encrypted S/MIME.
' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim mime As New Chilkat.Mime ' Build a simple MIME message to be encrypted: Dim success As Boolean = mime.AddHeaderField("Content-Type","text/plain") success = mime.AddHeaderField("abc","123") mime.SetBody("This is a test") ' A digital certificate is required to create PKCS7 encrypted MIME. ' It can come from a variety of sources: .cer file, .pfx file, PEM files, ' an in-memory representation, or directly from a Windows ' registry-based certificate store. ' This example will load a certificate object from a .cer file. ' Note: Only the public-key is required to encrypt. (Decryption ' requires a private key.) Dim cert As New Chilkat.Cert success = cert.LoadFromFile("myCert.cer") If (success = False) Then Debug.WriteLine(cert.LastErrorText) Exit Sub End If ' Encrypt the MIME: success = mime.Encrypt(cert) If (success = False) Then Debug.WriteLine(mime.LastErrorText) Exit Sub End If ' Display the MIME: Debug.WriteLine(mime.GetMime()) ' The resulting S/MIME looks something like this: ' abc: 123 ' Content-Disposition: attachment; filename="smime.p7m" ' Content-Transfer-Encoding: base64 ' Content-Type: application/x-pkcs7-mime; ' name="smime.p7m" ' ' MIICAQYJKoZIhvcNAQcDoIIB8jCCAe4CAQAxggGFMIIBgQIBADBpMFUxCzAJBgNVBAYTAlpBMSUw ' IwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMR8wHQYDVQQDExZUaGF3dGUgQ29k ' ZSBTaWduaW5nIENBAhB4ouTcAmLszrGi170k1deSMA0GCSqGSIb3DQEBAQUABIIBABz59iwVufLZ ' QIPs0whUYMtBjIQxg5IOCxpoKJeJmLVzu9Q5Q1poxG9uYOveybS9c4wbl5A0DFfKTW5O4HhHcOHW ' TgcH4iqdwhiFWm/q9d5rjceJWBFQsGOcgoXSU/U2Xp+N47/+Pqyc5XJbxKnOc4YhPzO320JZsNB6 ' p1NGk5SNnWqgbUDmEnfH8ZPHSV7dNi2aiFALYTyLjyp0lqJCsdZ524OPTZFfusrl/9ibPAW7jKuI ' FgDCcBtRJvolVF8iIHxaTw4rhk0qb1KWzxvB5j9HSLdyIKIPhZbxeS10bx18YkSsBlKfdKRalQag ' 3oWSRdsK9/N75YHG8Pm+x9BOHUAwYAYJKoZIhvcNAQcBMBkGCCqGSIb3DQMCMA0CAToECAb+toBW ' txZigDhGZKSpUpuTiWvvSMemX/c79sSnMpuefVwGKFTDgXVLE2SoD5a9Yh5vcG7Mhl2IkilVwOMc ' fi23+g== |
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