AutoIt

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

AutoIt

Local $bSuccess = False

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

$oCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oCert.LoadFromFile("qa_data/openssl/EE.cer")
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

$oBd = ObjCreate("Chilkat.BinData")
$bSuccess = $oBd.LoadFile("qa_data/openssl/hello.txt")
; Assuming success..

$oCrypt = ObjCreate("Chilkat.Crypt2")
$bSuccess = $oCrypt.SetEncryptCert($oCert)
If ($bSuccess = False) Then
    ConsoleWrite($oCrypt.LastErrorText & @CRLF)
    Exit
EndIf

$oCrypt.CryptAlgorithm = "PKI"

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

$bSuccess = $oCrypt.CkEncryptFile("qa_data/openssl/hello.txt","qa_output/hello.txt.enc")
If ($bSuccess = False) Then
    ConsoleWrite($oCrypt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)