AES String Encryption

AES string encryption in ASP.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
set crypt = Server.CreateObject("Chilkat_9_5_0.Crypt2")

success = crypt.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode("Crypt component unlock failed") & "</pre>"

End If

password = "secretPassPhrase"

crypt.CryptAlgorithm = "aes"
crypt.CipherMode = "cbc"
crypt.KeyLength = 128

'  Generate a binary secret key from a password string
'  of any length.  For 128-bit encryption, GenEncodedSecretKey
'  generates the MD5 hash of the password and returns it
'  in the encoded form requested.  The 2nd param can be
'  "hex", "base64", "url", "quoted-printable", etc.
hexKey = crypt.GenEncodedSecretKey(password,"hex")
crypt.SetEncodedKey hexKey,"hex"

crypt.EncodingMode = "base64"
text = "The quick brown fox jumped over the lazy dog."

'  Encrypt a string and return the binary encrypted data
'  in a base-64 encoded string.
encText = crypt.EncryptStringENC(text)

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

'  Decrypt and show the original string:
decryptedText = crypt.DecryptStringENC(encText)

Response.Write "<pre>" & Server.HTMLEncode( decryptedText) & "</pre>"
%>
</body>
</html>