Node.js

Check if a MIME Entity is Encrypted (S/MIME)

Demonstrates the Chilkat Mime.IsEncrypted method, which returns whether the entity is a CMS/PKCS #7 encrypted S/MIME wrapper. It takes no arguments.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: This tells you a message is encrypted and must be decrypted before its real content is available — the trigger for supplying a recipient certificate and private key to Decrypt. Reading the body without decrypting first would just yield the opaque PKCS #7 blob.

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Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    //  Demonstrates the Mime.IsEncrypted method, which returns whether the entity is a CMS/PKCS #7 encrypted S/MIME wrapper.  It takes no arguments.

    var mime = new chilkat.Mime();
    success = mime.LoadMimeFile("qa_data/encrypted.eml");
    if (success == false) {
        console.log(mime.LastErrorText);
        return;
    }

    if (mime.IsEncrypted()) {
        console.log("This is an encrypted S/MIME message.");
    }
    else {
        console.log("This is not an encrypted S/MIME message.");
    }


}

chilkatExample();