Cipher - Encrypted ExpressionEngine Fieldtype
Are you storing sensitive information in your EE install? Would you sleep better at night knowing that your data/content was encrypted in the database? If so then Cipher is for you!
Cipher is a plain text EE fieldtype that displays content correctly in the publish screen and on the font-end of your website but stores the value as an encrypted string within your EE database. This fieldtype uses CodeIgniters encrypt library and allows you to provide a unique encryption key for each field you add using this type for ultimate security.
Installation
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Create a directory within /system/expressionengine/third_party called "cipher" and upload ft.cipher.php to it.
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Navigate to Add-ons -> Fieldtypes and click Install next to the Cipher fieldtype.
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Cipher will now be an option in the Type drop down menu on the Add Field form.