(JavaScript) Create PKCS7 Signed File (.p7m)

Demonstrates how to sign a file to create a .p7m that contains both the file contents and the signature.

Note: This example requires Chilkat v10.1.2 or greater.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var crypt = new CkCrypt2();

var certStore = new CkCertStore();

// Load a PFX file into a certificate store object.
success = certStore.LoadPfxFile("myPfx.pfx","pfxPassword");
if (success !== true) {
    console.log(certStore.LastErrorText);
    return;
}

// Get the certificate by subject common name.
// This should be the cert within the PFX that also
// has a private key (also stored within the PFX).
var jsonCN = new CkJsonObject();
jsonCN.UpdateString("CN","myCert");
var cert = new CkCert();
success = certStore.FindCert(jsonCN,cert);
if (success == false) {
    console.log(certStore.LastErrorText);
    return;
}

// Tell the crypt object to use the certificate for signing:
success = crypt.SetSigningCert(cert);

// Sign a file, producing a .p7m as output.
// The input file is unchanged, the test.p7m contains the 
// contents of the input file and the signature.
var inFile = "test.txt";
var outFile = "testp7m";
success = crypt.CreateP7M(inFile,outFile);
if (success !== true) {
    console.log(crypt.LastErrorText);
    return;
}

console.log("Success!");