Encrypt

Encrypts a string. 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. Uses an XOR-based algorithm that uses a pseudo-random 32-bit key, based on a seed passed by the user as a function parameter.

String; can be much longer than the original string.

Other functions, String functions

Encrypt(string, seed)

Decrypt

<h3>Encrypt Example</h3>
<p>This function allows for the encryption and decryption of a string. 
Try it by entering a string and a key to see 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>

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