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(Perl) Encrypting and Decrypting ContentDemonstrates how to encrypt and decrypt the content of an XML node using 128-bit CBC AES encryption. The input XML, available at http://www.chilkatsoft.com/data/fox.xml, is this: <root> <fox1>The quick brown fox jumps over the lazy dog</fox1> <fox2>The quick brown fox jumps over the lazy dog <child1>ABC</child1> <child2>XYZ</child2> </fox2> </root>
use chilkat(); $xml = chilkat::CkXml->new(); # The sample input XML is available at http://www.chilkatsoft.com/data/fox.xml $success = $xml->LoadXmlFile("fox.xml"); if ($success != 1) { print $xml->lastErrorText() . "\r\n"; exit; } # Navigate to the "fox1" node, which is the 1st child: $success = $xml->FirstChild2(); # Encrypt the content: $success = $xml->EncryptContent("myPassword"); # Navigate back to the root: $xml->GetRoot2(); # Examine the new XML document: print $xml->getXml() . "\r\n"; # This is the XML w/ the encrypted content: # <root> # <fox1>1hTtf7XmO+78H+OIr5eWHIuXxP78KPeYrZbsD0HX4negO9ZRqYMBY4s46sPNp+Q+ # </fox1> # <fox2>The quick brown fox jumps over the lazy dog # <child1>ABC</child1> # <child2>XYZ</child2> # </fox2> # </root> # Now decrypt and show that the original content was restored: $success = $xml->FirstChild2(); $success = $xml->DecryptContent("myPassword"); $xml->GetRoot2(); print $xml->getXml() . "\r\n"; # Now encrypt the content of the "fox2" node. # First navigate to the "fox2" child. $success = $xml->FindChild2("fox2"); $success = $xml->EncryptContent("myPassword"); $xml->GetRoot2(); print $xml->getXml() . "\r\n"; # This is the XML w/ the "fox2" encrypted content: # <root> # <fox1>The quick brown fox jumps over the lazy dog</fox1> # <fox2>1hTtf7XmO+78H+OIr5eWHIuXxP78KPeYrZbsD0HX4negO9ZRqYMBY4s46sPNp+Q+ # # <child1>ABC</child1> # <child2>XYZ</child2> # </fox2> # </root> # Notice that the *content* of the node is encrypted. The child nodes are NOT encrypted. # This is intentional. To encrypt the content + the subtrees rooted at a given node, # one would call ZipTree to transform the content and subtrees # to Base64-encoded compressed content, and then call # EncryptContent to encrypt. # Finally, decrypt the "fox2" content: $success = $xml->FindChild2("fox2"); $success = $xml->DecryptContent("myPassword"); $xml->GetRoot2(); print $xml->getXml() . "\r\n"; |
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