The Internet & Encryption

Data on the Internet is transmitted via ____ wires and connections.

The process of scrambling a message and making in unreadable is​ (a)   . The reverse process to take the scrambled message back to plain text is​ (b)   . The algorithm used for this purpose is called the​ (c)   .

• ENCRYPTION
• DECRYPTION
• KEY/CIPHER
• ENCODER
• DECODER

The loophole of the Caesar cipher was that ...

One way to improve Caesar cipher and make it more difficult to break was to use ___ keys.

Today's encryption keys run as long as ___ bits.

Put the statements in the correct category.

Groups:

(a) SYMMETRIC

,

(b) ASYMMETRIC

• Messages are encrypted and decrypted with the same key.

• Uses two different keys

• Uses one key

• Messages can only be decrypted using the private key.

• Key is shared ahead of data transmission between sender and recepient.

• Public key is shared openly.

Which part of the URL below indicates that data transmission between your device and the server of the website is secure and encrypted?

https://www.amazon.es/login/