Salesforce4U

Encryption , is the process of changing information in such a way as to make it unreadable by anyone except those possessing special knowledge (usually referred to as a "key") that allows them to change the information back to its original, readable form. To encrypt some value we have to use some key value that can be hard coded or we can generate key also by using this  Blob cryptoKey = Crypto.generateAesKey(256); We have to use same key to decrypt that value. Here I am going to share some code.Hope it will help you. I have created one visualforce page and one controller. In the page only one field(Name) is there and two button(Save & Update). When some value is entered in the name field and clicked on save button that value will be stored in the object encrypted format. Now record id in the url and click on update button encrypted value will be converted in to original format. Here is my page <apex:page standardController="EnCrypt_Decrypt__c" ...