JavaScript

Duplicate openssl smime -encrypt -binary -aes-256-cbc -in some_file.dat -out some_file.dat.enc -outform DER cert.crt

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Demonstrates how to encrypt to binary DER using 256-bit AES (CBC mode) as the underlying symmetric encryption algorithm, to produce PKCS7 enveloped data (binary DER).

Duplicates the following openssl command:

openssl smime -encrypt -binary -aes-256-cbc -in some_file.dat -out some_file.dat.enc -outform DER cert.crt

JavaScript

var success = false;

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

var cert = new CkCert();
success = cert.LoadFromFile("qa_data/openssl/EE.cer");
if (success == false) {
    console.log(cert.LastErrorText);
    return;
}

var bd = new CkBinData();
success = bd.LoadFile("qa_data/openssl/hello.txt");
// Assuming success..

var crypt = new CkCrypt2();
success = crypt.SetEncryptCert(cert);
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

crypt.CryptAlgorithm = "PKI";

// Indicate the underlying symmetric encryption to be used:
crypt.Pkcs7CryptAlg = "aes";
crypt.KeyLength = 256;
crypt.CipherMode = "cbc";

success = crypt.CkEncryptFile("qa_data/openssl/hello.txt","qa_output/hello.txt.enc");
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

console.log("Success.");