Generate Secret Key from Password

The GenEncodedSecretKey method provides a way to produce a secret key from an arbitrarily sized password string. The secret key produced will be equal in bit length to the KeyLength. A given string passed to GenEncodedSecretKey will always produce the same key. (In other words, this is really a hash function and not a random key generator.)

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")

success = crypt.UnlockComponent("Anything for 30-day Trial")
If (success <> 1) Then
    Response.Write "Crypt component unlock failed" & "<br>"

End If

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

'  Transform an arbitrary-length password to a secret key
'  equal in bit-length to the KeyLength:

hexKey = crypt.GenEncodedSecretKey("my_password","hex")

'  Set the secret key:
crypt.SetEncodedKey hexKey,"hex"

'  The hexKey is 16 bytes in length:
Response.Write hexKey & "<br>"
%>
</body>
</html>