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WGU Introduction-to-Cryptography Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Symmetric Encryption | 25% | - Algorithms: AES, DES, 3DES, Blowfish - Key generation, distribution, and management challenges - Block vs stream ciphers, modes of operation (ECB, CBC, OFB, CFB) - Principles and operation |
| Topic 2: Key Management & Secure Protocols | 10% | - Cryptographic attacks: brute force, birthday, man-in-the-middle - Key generation, storage, exchange, and destruction - Secure protocols: TLS/SSL, IPsec, SSH, PGP |
| Topic 3: Asymmetric Encryption & Public Key Infrastructure | 25% | - Digital signatures: purpose and process - Principles: public/private key pairs - Algorithms: RSA, ECC, Diffie-Hellman - PKI components: certificates, CAs, trust models - Certificate lifecycle: creation, validation, revocation |
| Topic 4: Cryptography Fundamentals | 20% | - Core goals: confidentiality, integrity, authentication, non-repudiation - Historical evolution and modern applications - Basic terminology: plaintext, ciphertext, algorithm, key |
| Topic 5: Implementation & Best Practices | 5% | - Selecting appropriate algorithms and key sizes - Common mistakes and vulnerabilities - Standards and compliance |
| Topic 6: Hash Functions & Data Integrity | 15% | - Algorithms: SHA-1, SHA-256, SHA-3, MD5 - HMAC construction and application - Properties: collision resistance, one-way function - Uses: integrity checks, password storage, message authentication |
WGU Introduction to Cryptography HNO1 Sample Questions:
Question #1
(Which symmetric encryption technique uses a 256-bit key size and a 128-bit block size?)
A. AES
B. DES
C. IDEA
D. 3DES
Question #2
(Which component is used to verify the integrity of a message?)
A. AES
B. IV
C. TKIP
D. HMAC
Question #3
(Two people want to communicate through secure email. The person creating the email wants to ensure only their friend can decrypt the email. Which key should the person creating the email use to encrypt the message?)
A. Sender's private key
B. Recipient's private key
C. Recipient's public key
D. Sender's public key
Question #4
(Which is a primary reason for ethical concerns about encryption?)
A. It only benefits large corporations.
B. It provides faster data transmission.
C. It complicates government access to potentially crucial information.
D. It reduces data storage requirements.
Question #5
(What is a characteristic of a hash function?)
A. Public-private key pair use
B. Reversible
C. Data encryption
D. One-way
Solutions:
| Question #1 Correct Answer: A | Question #2 Correct Answer: D | Question #3 Correct Answer: C | Question #4 Correct Answer: C | Question #5 Correct Answer: D |


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