Classic ASP

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

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set cert = Server.CreateObject("Chilkat.Cert")
success = cert.LoadFromFile("qa_data/openssl/EE.cer")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

set bd = Server.CreateObject("Chilkat.BinData")
success = bd.LoadFile("qa_data/openssl/hello.txt")
' Assuming success..

set crypt = Server.CreateObject("Chilkat.Crypt2")
success = crypt.SetEncryptCert(cert)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>"
    Response.End
End If

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 = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

%>
</body>
</html>