Cryptography
17 practice questions under this official exam objective (312-50v12, 312-50v13), each with the answer key, an option-by-option explanation and instant feedback.
Questions under this objective
17 total · page 1 of 1CA vs RA CRL Publishing Limitation
Certificate Authorities (CAs) are responsible for publishing Certificate Revocation Lists (CRLs), a function that Registration Authorities (RAs) are l
Purpose of CA in a PKI: Issue and Revoke Certificates
This question clarifies the primary function of a Certificate Authority (CA) within Public Key Infrastructure, distinguishing its role in issuing and
Diffie-Hellman vs RSA Key Establishment Algorithms
This question tests the fundamental distinction between Diffie-Hellman and RSA algorithms in cryptography. It establishes that DH is an asymmetric alg
Detecting Data Tampering in Transit with IPsec
This question addresses how to ensure data integrity and detect tampering during transmission alongside confidentiality. It establishes that while SSL
Why WPA2 Personal AES Wi-Fi Password Is Hard to Crack
This CEH 312-50v12 wireless-security question asks why a home WPA2 Personal network using AES resists password cracking with tools like aircrack-ng/Ha
Hybrid Encryption Security vs Performance Balance
This question tests the trade-offs between symmetric encryption key sizes in a hybrid system, highlighting that AES-512 is non-standard. The correct a
Best Symmetric Encryption for Quantum-Resistant Balance
This question evaluates the selection of symmetric encryption algorithms that balance security and performance in a post-quantum context. It establish
How to Keep Full Control of Cloud Encryption Keys at Rest?
Client-side encryption of sensitive data before upload to a public cloud, with the client retaining the keys, is what gives full control over data at
RSA Signing for Email Confidentiality and Non-Repudiation
SafePath Corp needs secure email that delivers both confidentiality and non-repudiation, which no single-key technique can supply. The page establishe
Secure Symmetric Key Distribution Strategy
This exam question evaluates the correct method for securely distributing symmetric encryption keys in a cloud storage environment. The page establish
Identify Encryption Algorithm with 64-bit Blocks and Three 56-bit Keys
Triple Data Encryption Standard (3DES) uses 64-bit data blocks and three 56-bit keys, distinguishing it from AES and MD5. This page explains the speci
Which Technique Strengthens an Encryption Key Against Brute-Force Attacks?
Kevin is using key stretching, which takes an initial key and repeatedly processes it to produce an enhanced key that is intentionally expensive to br
Balancing Security and Performance with AES-256 in Post-Quantum Scenarios
This question evaluates the selection of symmetric encryption algorithms under quantum computing threats, specifically highlighting why AES-256 offers
Identifying Serpent From Its Cipher Characteristics
This CEH cryptography question describes a cipher's block size, key sizes, round count, and S-box structure, and asks which algorithm matches. The des
Web of Trust Model for Public Key Encryption
Jane implemented the Web of Trust (WOT) model, a decentralized public-key trust framework where users maintain rings of public keys and validate one a
Which Protocol Securely Exchanges a Symmetric Key Over an Unsecured Channel?
When symmetric encryption protects data on an unsecured channel, the remaining problem is agreeing on the shared key without exposing it, which is exa
Best Way to Secure Payment Data Stored on a Mobile Device
This EC-Council 312-50v12 question asks which measure best protects credit card details and PINs stored locally by a mobile payment app. Encrypting al