Encrypt MIME for Multiple Recipients

See more MIME Examples

Demonstrates encrypting the current MIME entity for several recipients at once. A certificate is added for each recipient with AddEncryptCert, and EncryptN then produces a single CMS/PKCS #7 message that each recipient can independently decrypt.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

require 'chilkat'

success = false

mime = Chilkat::CkMime.new()
success = mime.SetBodyFromPlainText("This message will be encrypted.")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Add a certificate for each intended recipient.  Every recipient receives an independently
#  wrapped copy of the message key.
cert1 = Chilkat::CkCert.new()
success = cert1.LoadFromFile("qa_data/recipient1.cer")
if (success == false)
    print cert1.lastErrorText() + "\n";
    exit
end

success = mime.AddEncryptCert(cert1)
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

cert2 = Chilkat::CkCert.new()
success = cert2.LoadFromFile("qa_data/recipient2.cer")
if (success == false)
    print cert2.lastErrorText() + "\n";
    exit
end

success = mime.AddEncryptCert(cert2)
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Encrypt for every added recipient at once.
success = mime.EncryptN()
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

success = mime.SaveMime("qa_output/encrypted_multi.eml")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

print "Message encrypted for multiple recipients." + "\n";