(Lianja) 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 Lianja Extension Download Chilkat Lianja Extension

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

loCert = createobject("CkCert")
llSuccess = loCert.LoadFromFile("qa_data/openssl/EE.cer")
if (llSuccess = .F.) then
    ? loCert.LastErrorText
    release loCert
    return
endif

loBd = createobject("CkBinData")
llSuccess = loBd.LoadFile("qa_data/openssl/hello.txt")
// Assuming success..

loCrypt = createobject("CkCrypt2")
llSuccess = loCrypt.SetEncryptCert(loCert)
if (llSuccess = .F.) then
    ? loCrypt.LastErrorText
    release loCert
    release loBd
    release loCrypt
    return
endif

loCrypt.CryptAlgorithm = "PKI"

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

llSuccess = loCrypt.CkEncryptFile("qa_data/openssl/hello.txt","qa_output/hello.txt.enc")
if (llSuccess = .F.) then
    ? loCrypt.LastErrorText
    release loCert
    release loBd
    release loCrypt
    return
endif

? "Success."


release loCert
release loBd
release loCrypt