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(JavaScript) Create CMS (PKCS7) Detached MIME Signature
Demonstrates how to add a CMS detached signature to MIME.
var success = false;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
var mime = new CkMime();
// Load a certificate w/ private key for signing.
var cert = new CkCert();
success = cert.LoadPfxFile("qa_data/pfx/ecc256_12345.p12","12345");
if (success !== true) {
console.log(cert.LastErrorText);
return;
}
console.log("Cert: " + cert.SubjectDN);
// Create a simple MIME message to be signed:
mime.AddHeaderField("Subject","This is a test");
mime.AddHeaderField("MyCustomHeader","abc123");
mime.ContentType = "text/plain";
mime.SetBody("This is a plain-text body.");
// Examine the MIME prior to signing:
console.log("--- MIME prior to signing ---");
console.log(mime.GetMime());
// The MIME prior to signing looks like this:
// Subject: This is a test
// MyCustomHeader: abc123
// Content-Type: text/plain; format=flowed
//
// This is a plain-text body.
// Use SHA256 as the hash algorithm in the CMS signature.
mime.SigningHashAlg = "SHA256";
// Add a detached signature:
success = mime.AddDetachedSignature(cert);
if (success == false) {
console.log(mime.LastErrorText);
return;
}
// Examine the MIME with detached signature:
console.log("--- MIME with detached signature ---");
console.log(mime.GetMime());
// Content-Type: multipart/signed; boundary="----=_NextPart_6e3_c655_9641494d.b4f00501";
// protocol="application/x-pkcs7-signature";
// micalg=sha256
//
// ------=_NextPart_6e3_c655_9641494d.b4f00501
// Subject: This is a test
// MyCustomHeader: abc123
// Content-Type: text/plain; format=flowed
//
// This is a plain-text body.
// ------=_NextPart_6e3_c655_9641494d.b4f00501
// Content-Transfer-Encoding: base64
// Content-Type: application/x-pkcs7-signature; name="smime.p7s"
// Content-Disposition: attachment; filename="smime.p7s"
//
// MIID7AYJKoZIhvcNAQcCoIID3TCCA9kCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg
// ggJxMIICbTCCAhOgAwIBAgIJAJuS2kgOoyr+MAkGByqGSM49BAEwWzELMAkGA1UEBhMCQVUxEzAR
// BgNVBAgTClNvbWUtU3RhdGUxITAfBgNVBAoTGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEUMBIG
// A1UEAxMLZWNjMjU2LXRlc3QwHhcNMTYwODIzMTU0OTM5WhcNNDQwMTA4MTU0OTM5WjBbMQswCQYD
// VQQGEwJBVTETMBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQ
// dHkgTHRkMRQwEgYDVQQDEwtlY2MyNTYtdGVzdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABARy
// Hd86A7+qQ4DlIfKynZaFGdGLpkU3GlQwqaVD6GIJg3QIDhaWEksYtZ9OWjNHn9a6+i/P9o5/NrdI
// SP0VWDWjgcAwgb0wHQYDVR0OBBYEFGmd2DfK4c3VBTVn8ebKH2BTmRicMIGNBgNVHSMEgYUwgYKA
// FGmd2DfK4c3VBTVn8ebKH2BTmRicoV+kXTBbMQswCQYDVQQGEwJBVTETMBEGA1UECBMKU29tZS1T
// dGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMRQwEgYDVQQDEwtlY2MyNTYt
// dGVzdIIJAJuS2kgOoyr+MAwGA1UdEwQFMAMBAf8wCQYHKoZIzj0EAQNJADBGAiEAhuiwGy0lZKtK
// LA13Ffc8AMTK7NsePPSfs0clXlZUR78CIQDXsJXpYsJ7tlTeockrK+6099sG/gGFTRPiQYU8juyf
// LzGCAT8wggE7AgEBMGgwWzELMAkGA1UEBhMCQVUxEzARBgNVBAgTClNvbWUtU3RhdGUxITAfBgNV
// BAoTGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEUMBIGA1UEAxMLZWNjMjU2LXRlc3QCCQCbktpI
// DqMq/jANBglghkgBZQMEAgEFAKBpMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcN
// AQkFMQ8XDTIyMDUwODE0MzM1NFowLwYJKoZIhvcNAQkEMSIEIMvNpYuymLvF68aFFe+l3NEQTdkB
// 7T8U6/j+Y5FgDlIUMAoGCCqGSM49BAMCBEYwRAIgQ6migEn3Le9ciIVUP/qc2JZAJZWjpulJXY9Q
// IZJ3XK0CIGZwpLOgiv7ES8958hqT9a/q7aPc1xmkaZHtsat/k+Ki
//
// ------=_NextPart_6e3_c655_9641494d.b4f00501--
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