Data Encryption/Decryption

“Encryption works best if it is ubiquitous and automatic. It should be enabled for everything by default, not a feature you only turn on when you’re doing something you consider worth protecting.”

-Bruce Schneier, Cryptographer, Privacy and Security Specialist

Encryption enhances the security of a message or file by scrambling the content. To encrypt a message, you need the right key, and you need the right key to decrypt it as well.It is the most effective way to hide communication via encoded information where the sender and the recipient hold the key to decipher data. The concept isn't that different from children who come up with secret code words and other discreet ways to communicate, where only they can be able to understand the message. Encryption is like sending secret messages between parties—if someone tries to pry without the proper keys, they won't be able to understand the message.


There are two methods of encryption: symmetric and asymmetric encryption. Symmetric encryption, also known as secret key encryption, pertains to the sender and the recipient holding the same keys to encrypt and decrypt a message. Asymmetric encryption, or public key encryption uses what is called a key pair—a public key for encrypting a message, and a private key to decrypt it.

Click here to get methods ;-)

How to hide status bar & Notification bar permanently form an activity !!!

Smartphone notifications are pretty useful, there's no denying that. They make it hard to miss an important event, such as an upcoming appointment in one's calendar or the arrival of a new email in their priority inbox. But when abused, notifications can be quite annoying. Android users would surely agree with that – it is a common practice among developers to have their games pushing notifications reminding the user that they have skipped a day without playing or that they're about to miss on an in-app purchase discount. You know, stuff that nobody really cares about. Thankfully, disabling these annoying Android notifications is an easy job, requiring no hacking whatsoever.

Click here to get solution  ;)

https://github.com/nithinchalakkal