Big Data and Privacy

Big Data and Privacy

1. Big data

   • Large amounts of data that it is hard to understand it

2. Moore's law

   • The computer quality doubles every year

3. Caesar cipher

   • Shifting the alphabet so many times to encrypt a message

4. encryption

   • Putting something into code

5. decryption

   • Taking something out of code, either cracking it or using a key

6. Frequency analysis

   • How often a letter is used, both in alphabet and in encrypted message

7. Encryption algorithm

   • Steps to create an encryption

8. Encryption Key

   • A key you make to encrypt something

9. Computationally hard

   • It takes a lot of time for a computer to crack a code