(Swift 2) Duplicate openssl smime -encrypt -binary -aes-256-cbc -in some_file.dat -out some_file.dat.enc -outform DER cert.crt

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

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let cert = CkoCert()
    var success: Bool = cert.LoadFromFile("qa_data/openssl/EE.cer")
    if success == false {
        print("\(cert.LastErrorText)")
        return
    }

    let bd = CkoBinData()
    success = bd.LoadFile("qa_data/openssl/hello.txt")
    // Assuming success..

    let crypt = CkoCrypt2()
    success = crypt.SetEncryptCert(cert)
    if success == false {
        print("\(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", destFile: "qa_output/hello.txt.enc")
    if success == false {
        print("\(crypt.LastErrorText)")
        return
    }

    print("Success.")

}