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WGU Introduction-to-Cryptography Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Key Management and PKI | - Certificates, certificate authorities, and PKI structure - Key exchange and lifecycle management |
| Foundations of Cryptography | - Historical and modern cryptography principles - Core concepts of confidentiality, integrity, authentication, non-repudiation |
| Symmetric Encryption | - Block and stream ciphers - AES and legacy algorithms (e.g., DES conceptually) |
| Cryptographic Protocols and Applications | - TLS/SSL conceptual overview - Secure communication design principles |
| Asymmetric Encryption | - RSA and ECC fundamentals - Public key cryptography principles |
| Hash Functions and Message Authentication | - MAC and HMAC mechanisms - Cryptographic hash functions (e.g., SHA family concepts) |
WGU Introduction to Cryptography HNO1 Sample Questions:
1. (Which technique involves spotting variations in encrypted data and plotting how the characters relate to standard English characters?)
A) Chosen ciphertext
B) Brute force
C) Known plaintext
D) Frequency analysis
2. (What describes how Counter (CTR) mode encryption functions?)
A) Encrypts each block with the same key, where each block is independent of the others
B) Converts the block cipher into a stream cipher, then uses a counter value and a nonce to encrypt the data
C) Uses an IV to encrypt the first block, then uses the result of the encryption to encrypt the next block
D) Uses a self-synchronizing stream cipher where the IV is encrypted and XORed with the data stream one bit at a time
3. (What is an attribute of RC4 when used with WEP?)
A) 512-bit key
B) 128-bit key
C) 40-bit key
D) 256-bit key
4. (Which mechanism can be applied to protect the integrity of plaintext when using AES?)
A) Kerberos key sharing
B) RC4
C) RSA
D) Message Authentication Code (MAC)
5. (Which operation can be performed on a certificate during the "Issued" stage?)
A) Key recovery
B) Distribution
C) Key archiving
D) Creation
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: B |
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