Cryptography-Interview Question Prep.pdf

In today’s digital-first world, data security is everything. From protecting sensitive information to defending against cyber threats, cryptographers are the unsung heroes of cybersecurity.

If you’re preparing for a cryptography interview, knowing the right questions can set you apart. This guide covers:
🔹What is cryptography and why it matters
🔹Symmetric vs. asymmetric encryption explained
🔹PKI, session keys, hash functions, and signature schemes
🔹Latest trends like quantum, homomorphic, and blockchain cryptography
🔹Common threats and how to tackle them

1. How does symmetric encryption differ from asymmetric
encryption?
4
Symmetric encryption and asymmetric encryption are two cryptographic
methods, each with unique characteristics.
Symmetric Encryption Symmetric Encryption
It employs a single shared secret key
for both encryption and decryption
processes.
It utilizes a pair of mathematically
related keys: public and private keys.
The key must remain confidential and
be securely shared between the
communicating parties.
It does not require sharing a secret
key beforehand, as required in
symmetric encryption. Instead, they
only need to share their public keys,
which do not need to be kept secret.
It is generally faster and
computationally more efficient than
asymmetric encryption.
It is generally slower and
computationally more expensive than
symmetric encryption.
It is often used for encrypting large
amounts of data, such as files or
network traffic, where efficiency is a
priority.
It is commonly used for key exchange,
digital signatures, establishing secure
communication channels, and secured
authentication.
Examples: AES, DES, and 3DES. Examples: RSA and ECC.
Top Cryptography Interview
Questions and Answers
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3. Interview Questions
for Red Team Expert
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