- __________ is a principle that affects the randomness of an output. Confusion
- __________ is a research field that involves the study of cryptosystems that are not vulnerable to quantum computation. Post-quantum cryptography
- __________ is the most widely used stream cipher and is used in popular protocols such as Transport Layer Security (TLS) and WEP/WPA/WPA2. RC4
- A __________ is a special piece of data used in both the encryption and decryption processes. Key
- Asymmetric encryption tends to be faster, is less computationally involved, and is better for bulk transfers. False
- Common uses of hashing algorithms are to store computer passwords and to ensure message __________. Integrity
- Hashing functions are special mathematical functions that perform a two-way encryption. False
- Keyspace refers to __________. a set of possible key values
- Once a hash value is generated, it is not reversible. True
- The consequence of a hash function that suffers from collisions is a loss of __________. Integrity
- The ECB mode of operation is recommended for use in all cryptographic protocols because it provides protection against input patterns or known blocks. False
- The Vigenere cipher works as a(n) __________ cipher that depends on a password. polyalphabetic substitution
- What is the newest version of the Secure Hash Algorithm (SHA)? SHA-3
- When an algorithm lists a certain number of bits as a key, it is defining the keyspace. True
- Which encryption algorithm is one of the more popular symmetric algorithms in use today? 3DES
- Which encryption method is based on the idea of two keys, one that is public and one that is private? Asymmetric encryption
- Which encryption method is based on the idea of using the same key for encryption and decryption of data? Symmetric encryption
- Which encryption protocol is the gold standard for key exchange? Diffie-Hellman (DH)
- Which mode of operation is defined as a block mode where each block is XORed with the previous ciphertext block before being encrypted? Cipher Block Chaining (CBC)
- Which term refers to the science of encrypting, or hiding, information? Cryptography
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