Encrypt |
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Description
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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.
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Returns
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String; can be much longer than the original string.
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Category
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Other functions, String functions
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Function syntax |
Encrypt(string, seed)
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See also
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Decrypt
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Parameters
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Parameter |
Description |
string |
String to encrypt |
seed |
String. Seed used to generate 32-bit encryption key. Can be any combination of |
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any number of characters. |
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Example<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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