Quoted-Printable Encode/Decode a String

ASP example to quoted-printable encode and decode a string.

Download Chilkat Crypt ActiveX

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

'  Any string argument automatically begins the 30-day trial.
success = crypt.UnlockComponent("30-day trial")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>"

End If

'  Here's a string in Icelandic using non us-ascii chars:
s = "Ég get etið gler án þess að meiða mig."

crypt.CryptAlgorithm = "none"
crypt.EncodingMode = "quoted-printable"

'  Quoted-printable encode/decode the iso-8859-1
'  representation of the string.  Notice how each
'  Icelandic char is represented by 1 byte:
crypt.Charset = "iso-8859-1"
qp = crypt.EncryptStringENC(s)
Response.Write "<pre>" & Server.HTMLEncode( "iso-8859-1:") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( qp) & "</pre>"
decoded = crypt.DecryptStringENC(qp)
Response.Write "<pre>" & Server.HTMLEncode( decoded) & "</pre>"

'  Now do the same using utf-8. Notice how each
'  Icelandic char is represented by 2 bytes in utf-8:
crypt.Charset = "utf-8"
qp = crypt.EncryptStringENC(s)
Response.Write "<pre>" & Server.HTMLEncode( "utf-8:") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( qp) & "</pre>"
decoded = crypt.DecryptStringENC(qp)
Response.Write "<pre>" & Server.HTMLEncode( decoded) & "</pre>"
%>
</body>
</html>