| CFML Reference
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ColdFusion Functions
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Encrypt
Description
Encrypts a string. Encrypt uses a symmetric key-based algorithm in which the same key is used to encrypt and decrypt a string. The security of the encrypted string depends on maintaining the secrecy of the key. Encrypt uses an XOR-based algorithm that uses a pseudo-random 32-bit key based on a seed passed by the user as a parameter to the function. The resultant data is UUencoded and may be as much as three times the original size.
Category
String functions
Syntax
Encrypt(string, seed)
See also
Decrypt
Parameters
| Parameter |
Description |
string
|
String to encrypt
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seed
|
String that specifies the seed used to generate the 32-bit key needed to encrypt the string
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Example <!--- This example shows the use of Encrypt and Decrypt --->
<html>
<head>
<title>Encrypt Example</title>
</head>
<body bgcolor = silver>
<H3>Encrypt Example</H3>
<P>This function allows for the encryption and decryption of a
string. Try it out by entering your own string and a key of your
own choosing and seeing the results.
<cfif IsDefined("FORM.myString")>
<cfset string = FORM.myString>
<cfset key = FORM.myKey>
<cfset encrypted = encrypt(string, key)>
<cfset decrypted = decrypt(encrypted, key)>
<cfoutput>
<H4><B>The string:</B></H4> #string# <BR>
<H4><B>The key:</B></H4> #key#<BR>
<H4><B>Encrypted:</B></H4> #encrypted#<BR>
<H4><B>Decrypted:</B></H4> #decrypted#<BR>
</cfoutput>
</cfif>
<form action = "encrypt.cfm" method = "post">
<P>Input your key:
<P><input type = "Text" name = "myKey" value = "foobar">
<P>Input your string to be encrypted:
<P><textArea name = "myString" cols = "40" rows = "5" WRAP = "VIRTUAL">
This string will be encrypted (try typing some more)
</textArea>
<input type = "Submit" value = "Encrypt my String">
</FORM>
</body>
</html>
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