Cryptography & Codes

Cyber Defense Through Cryptographic Codes

Answer these six questions that probe how cryptographic algorithms and coded protocols secure modern systems and data.

#Encryption#Integrity#Protocols#Signatures#Quantum#Key Exchange

Total Questions

Difficulty Level

medium

Progress

0/0

Quiz Questions

Answer all questions below and test your knowledge.

1
In 2026, you are auditing a client's secure web service and discover it uses TLS 1.3 with a 3072-bit RSA certificate. For perfect forward secrecy of the HTTPS session, which component is primarily responsible?
Question 1
2
A new malware strain embeds a hardcoded string that appears to be the SHA-256 hash of a secret command-and-control domain. To make the analysis resistant to simple hash database lookups, which technique should the malware authors have paired with the hash?
Question 2
3
The NIST PQC standardization process, concluding in 2024, selected algorithms to resist quantum computer attacks. Which is a primary characteristic of the selected CRYSTALS-Kyber algorithm?
Question 3
4
Your team implements a digital signing system for firmware updates. To prevent an attacker from reusing an old, valid signature with a newer, malicious firmware file, what must the signature process cryptographically bind?
Question 4
5
In a Kerberos network authentication protocol, what is the primary function of the Ticket-Granting Ticket (TGT) issued by the Key Distribution Center (KDC)?
Question 5
6
When analyzing a block cipher like AES in Cipher Block Chaining (CBC) mode, what is a critical operational requirement for ensuring both confidentiality and proper decryption?
Question 6

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