3 - 7: Cryptographic Applications

Question 1

Transport Layer Security

Answer 1

A protocol which uses other cryptographic algorithms and cipher suites. Once a request is made: 1) the server tells the client which of the cipher suites it would like to use for the communication and 2) the server sends the client the server’s digital certificate.

Question 2

Session Key

Answer 2

In TLS, once the client is satisfied with the server’s certificate, the client generates a random encryption key, or session key. The session key is encrypted with the server’s public key, then sends it back. The key allows continuous encrypted exchange

Question 3

Ephemeral keys

Answer 3

Another name for session keys

Question 4

Secure Sockets Layer

Answer 4

The precursor to TLS which has flaws and is outdated. At times used interchangeably with TLS

Question 5

Information Rights Management

Answer 5

Enforce an information policy by: 1) Enforcing data rights 2) provisioning access 3) implementing access control models

Question 6

Digital Rights Management

Answer 6

Provides intellectual property owners means to prevent unauthorized use

Question 7

Smart Cards

Answer 7

Lightweight, low-power uses of encryption. Either the card itself or the receiver must have or transmit enough power for the encryption keys to be read.

Question 8

Blockchain

Answer 8

A distributed, immutable, public ledger