Exam (elaborations)
WGU - D334 EXAM QUESTIONS AND ANSWERS 2024
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WGU - D334 EXAM QUESTIONS AND ANSWERS 2024
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WGU - D334 EXAMCramer-Shoup - ANSWERS-a public key encryption method that is an extension of
El Gamal but adds a one way hashing method which protects against an adaptive
chosen ciphertext attack.
Paillier Cryptosystem - ANSWERS-Supports homomorphic encryption
PKCS #5 - ANSWERS-Used for password-based encryption
PKCS #7 - ANSWERS-Used to sign and/or encrypt messages for PKI
PKCS #10 - ANSWERS-A standard format used for requesting digital certificates
from certificate authorities.
PKCS #12 - ANSWERS-Used to bundle a private key with its X.509 certificate or to
bundle all the members of a chain of trust.
X.509 Encoding Schemes - ANSWERS-PEM (ASCII text)
DER (binary)
X.509 File formats - ANSWERS-.cer- PEM and DER
, .crt, .pem, .key- PEM
.der- DER
Initialization certificate stage - ANSWERS-Registration, key pair generation,
certificate creation, certificate/key distribution, certificate dissemination, key
backup
Issued certificate stage - ANSWERS-Certificate retrieval, certificate validation, key
recovery, key update
Cancellation certificate stage - ANSWERS-Certificate expiration, certificate
revocation, key history, key archiving
IPSec port - ANSWERS-UDP 500
ESP protocol number - ANSWERS-50
AH protocol number - ANSWERS-51
Electronic Code Book (ECB) - ANSWERS--Most basic, weak, and unsecure mode
-Each block is processed separately
-No Salt or IV is used and the same key will be used to encrypt each block. This
means if a given plaintext is encrypted in ECB and results in a given ciphertext,
that same ciphertext will be output EVERY TIME the same plaintext is encrypted.
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