Cryptography Applications

Question 1

VPN

Answer 1

Virtual Private Network

A mechanism that allows you to remotely connect a host or network to an internal, private network, passing the data over a public channel, like the Ethernet

Question 2

Tunnel

Answer 2

The tunnel is provided by L2TP which permits the passing of unmodified packets from one network to another

Question 3

Secure channel

Answer 3

The secure channel is provided by IPsec, which provides confidentiality, integrity and authentication of data being passed.

Question 4

TPM

Answer 4

Trusted Platform Module:
- secures generation of keys
- random number generation
- remote attestation
- data binding and sealing

A TPM had unique secret RSA key burned into the hardware at the time of manufacture, which allows a TPM to perform things like hardware authentication. This can detect unauthorized hardware changed to a system

Question 5

Secure element

Answer 5

A temper resistant chip often embedded in the microprocessor or integrated into the main board of a mobile device.

It supplies secure storage of cryptographic keys and provides a secure environment for applications

Question 6

TEE

Answer 6

Trusted Execution Environment

Provides a full-blown isolated execution environment that runs alongside the main os