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Chapter 3: ColdFusion Functions
Usage
This function uses a symmetric key-based algorithm, in which the same key is used to encrypt
and decrypt a string. The parameter values must match the values used to encode string. The
security of the encrypted string depends on maintaining the secrecy of the key.
ColdFusion MX 7 uses the Java Cryptography Extension (JCE) and installs a Sun Java 1.4.2
runtime that includes the Sun JCE default security provider. This provider includes the
algorithms listed in the Parameters section. The JCE framework includes facilities for using other
provider implementations; however, Macromedia cannot provide technical support for third-
party security providers.
Example
<h3>Decrypt Example</h3>
<!--- Do the following if the form has been submitted. --->
<cfif IsDefined("Form.myString")>
<cfscript>
/* GenerateSecretKey does not generate key for the CFMX_COMPAT algorithm,
so use the key from the form.
*/
if (Form.myAlgorithm EQ "CFMX_COMPAT")
theKey=Form.MyKey;
// For all other encryption techniques, generate a secret key.
else
theKey=generateSecretKey(Form.myAlgorithm);
//Encrypt the string
encrypted=encrypt(Form.myString, theKey, Form.myAlgorithm,
Form.myEncoding);
//Decrypt it
decrypted=
decrypt(encrypted, theKey, Form.myAlgorithm, Form.myEncoding);
</cfscript>
<!--- Display the values used for encryption and decryption,
and the results. --->
<cfoutput>
<b>The algorithm:</b> #Form.myAlgorithm#<br>
<b>The key:</B> #theKey#<br>
<br>
<b>The string:</b> #Form.myString# <br>
<br>
<b>Encrypted:</b> #encrypted#<br>
<br>
<b>Decrypted:</b> #decrypted#<br>
</cfoutput>
</cfif>
<!--- The input form. --->
<form action="#CGI.SCRIPT_NAME#" method="post">
<b>Select the encoding</b><br>
<select size="1" name="myEncoding" >
<option selected>UU</option>
<option>Base64</option>
<option>Hex</option>
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
Страница 1054: ...1054 Chapter 6 ColdFusion MX Event Gateway Reference...