PKI, Encrypting data, Key exchange, Encryption technologies

Question 1

PKI

Answer 1

Used as an associate with digital certificate to people or devices.

Question 2

Asymmetric encryption, also referred to as?

Answer 2

Encrypt & decrypt w/ the same key.
Shared secret, secret key algorithm.

Question 3

Asymmetric encryption

Answer 3

Encrypting & decrypting w/ two different keys.

Question 4

Private key

Answer 4

Keep this private, no one else has access.
**Only key that can decrypt data encrypted w/ the public key

Question 5

Public key

Answer 5

Anyone can see this key

Question 6

Key escrow

Answer 6

Allows authorized parties to access the encryption keys.

Question 7

Database encryption

Answer 7

Protecting stored data by converting it into an unreadable format.

Question 8

Transparent encryption

Answer 8

Encrypt all database info w/ a symmetric key

Question 9

Record-level encryption

Answer 9

Encrypting individual columns.
Use separate symmetric keys for each column.

Question 10

Transport encryption

Answer 10

Protects data traversing the network

Question 11

VPN

Answer 11

Encrypts all data over the network and hiding a user’s IP address.

Question 12

Client based VPN uses-

Answer 12

SSL/TLS

Question 13

Site-to site VPN uses-

Answer 13

IPsec

Question 14

Key stretching

Answer 14

Make a weak key stronger by performing multiple processes.
*Hash a password. Hash the hash of the password. And continue.

Question 15

Out-of-band key exchange

Answer 15

Don’t send the symmetric key over the ‘net
-Telephone, courier, in person.

Question 16

In band key exchange

Answer 16

the process of exchanging encryption keys directly over the same communication channel.

Question 17

Session key

Answer 17

An encryption/decryption key that ensures the security of a comm session between a user and another computer or vice versa.
*also known as symmetric keys

Question 18

Trusted Platform Module (TPM)

Answer 18

A microchip or embedded security in technology that protects a computer’s security & data.

Question 19

Persistent memory

Answer 19

a type of computer memory that retains data even when power is lost.
Unique keys burned in during manufacturing.

Question 20

Versatile memory

Answer 20

a type of memory that maintains its data only while the device is powered.
-Storage keys, hardware configuration info
-securely store Bitlocker keys

Question 21

Hardware Security Module

Answer 21

Used in large environments to securely store thousands of cryptographic materials.
-Clusters, redundant power.

Question 22

Key Management System

Answer 22

Managed all keys from a centralized manager.
-On premises, cloud based

Question 23

Secure Enclave

Answer 23

Keeps sensitive user data secure even when the Application Processor kernel becomes compromised