Untitled Flashcard

Front

What is the primary function of a cipher in cryptography?

Back

To convert plaintext into ciphertext

Front

Which cipher uses a grid to encrypt pairs of letters?

Back

Playfair Cipher

Front

In the Caesar Cipher, how many positions is each letter shifted in the standard version?

Back

3

Front

What is a key characteristic of the One-Time Pad cipher?

Back

It is unbreakable when used correctly.

Front

Which encoding method represents binary data using hexadecimal digits?

Back

Hexadecimal

Front

What is the purpose of frequency analysis in cryptography?

Back

To detect patterns in ciphertext

Front

Which cipher replaces each letter with a different symbol or letter, possibly using multiple symbols for a single plaintext letter?

Back

Homophonic Substitution Cipher

Front

What is the main advantage of the Vigenère Cipher over the Caesar Cipher?

Back

It uses a keyword to vary the shift, making it more secure.

Front

In the context of data encoding, what does Base64 encoding do?

Back

Encodes binary data into ASCII characters

Front

What is the primary use of Huffman coding in data processing?

Back

Data compression