6f Data security

6f Data security

1. Encryption

   • Cryptography: The process of encryption. Uses algorithms to scramble and unscramble date (cipher and decipher algorithms)
     • Data is scrambled so it is meaning less ad difficult to decipher if accessed unlawfully.
     • Usually carried out automatically by computer
     • Random encryption keys used so algorithm used is different each time.
     • Public key encryption to prevent decryption key being intercepted
       • Public key is used to encrypt messages sent to you, private key is used to decipher messages the computer receives.

2. Authorisation

3. Authentication

4. Virus Checking/ Protection

5. Physical Security

6. Wireless networks

7. Rest is on AS Chapter 7 Place Map