cryptology

Question 1

a _______ is electronic document used to bind a public key with an identity

Answer 1

digital certificate

Question 2

a ______ is a hierarchy of computers that issue and manages certificates

Answer 2

public key infrastructure (PKI)

Question 3

a _____ policy requires a administrator to manually approve or deny all request

Answer 3

manual

Question 4

a _______ policy allows CA’s to review information within the request to determine if it is valid information

Answer 4

automatic

Question 5

the _______ is a list of certificates revoked by the CA

Answer 5

certificate revocation list (CRL)

Question 6

a ______ is used to checks the status of an individual digital certificate to verify if it is good or has been revoked

Answer 6

Online certificate status protocol (OCSP)

Question 7

they are responsible for issuing tickets, holding certificate practice statements (CPS) and publishing the certificate revocation list (CRL)

Answer 7

subordinate CA

Question 8

it is a declaration of the security that the organization is implementing for all certificates issued by the CA

Answer 8

certificate practice statement (CPS)

Question 9

they can be used in large, enterprise environments to offload client enrollment request by handling the verification prior to certificates being issued

Answer 9

registration authority (RA)

Question 10

a ______ issues certificates.

Answer 10

certificate authority (CA)

Question 11

To request a certificate, a client must first

Answer 11

generate a public and private key pair.

Question 12

a public and private key pair is generated by an application called a

Answer 12

cryptographic service provider (CSP)

Question 13

when requesting a certificate from a CA, the client sends identifying information along with a copy of the public key this is called

Answer 13

certificate signing request (CSR).

Question 14

the certificate revocation list (CRL) is published at the

Answer 14

CRL Distribution Point (CDP)

Question 15

________ is the official standard of ITU Telecommunication Standardization Sector (ITU-T) that identifies the format for public key certificates and certification path validation.

Answer 15

X.509

Question 16

______ is a user who is authorized to request certificates for other users

Answer 16

Enrollment agent

Question 17

Users can obtain a copy of the CA’s certificate from the

Answer 17

Authority Information Access (AIA)

Question 18

_____ is a readable message.

Answer 18

plain test

Question 19

______ is a unreadable message to all but those for whom the message was intended.

Answer 19

cipher text

Question 20

______ is the method of recovering original data that has been encrypted without having access to the key used in the encryption process.

Answer 20

cryptoanalysis

Question 21

_______ is the associated items of cryptography that are used as a unit to provide a single means of encryption and decryption.

Answer 21

cryptosystem

Question 22

_________ is the study of cryptography and cryptanalysis.

Answer 22

cryptology

Question 23

it literally meaning “concealed writing”,

Answer 23

stenography

Question 24

____ is the process of using an algorithm to transform data from plain text to a cipher text in order to protect the confidentiality, integrity, and sometimes the authenticity of the message.

Answer 24

encryption

Question 25

______ is the procedure used to convert data from cipher text into plain text.

Answer 25

decryption

Question 26

________ cryptography uses a series of photons to encrypt and send messages

Answer 26

quantum

Question 27

_______ is a seed value used in encryption.

Answer 27

initialization vector (IV)

Question 28

a ______ cipher changes the position of characters in the plain text message.

Answer 28

transposition also called

anagram

Question 29

a _______ cipher replaces one set of characters with symbols or another character set.

Answer 29

substitution

Question 30

a ______ is a function that takes a variable-length string (message) and compresses and transforms it into a fixed-length value

Answer 30

hash

Question 31

• The hash value (output) is also referred to as a

Answer 31

message digest or digital fingerprint.

Question 32

_____ is the process of ensuring the security and availability of digital certificates.

Answer 32

Certificate management

Question 33

_________ model is used when one organization with a CA structure needs to trust certificates from another organization that has its own CA structure

Answer 33

a cross-certification or bridge

Question 34

a _______ configuration allows clients in one organization to trust any certificate issued by the other organization’s CAs and vice versa.

Answer 34

root-to-root

Question 35

a _____ configuration provides trust paths that can be configured for more restrictive certificate validation.

Answer 35

mesh