Hashing and Digital Signatures - CompTIA Security+ SY0-701 - 1.4

Front

What is a cryptographic hash?

Back

A short string of text representing data.

Front

Which hashing algorithm is known for producing a 256-bit output?

Back

SHA256

Front

What is a primary use of digital signatures?

Back

To verify message authenticity and integrity

Front

Why is the MD5 algorithm no longer recommended?

Back

It is vulnerable to collisions

Front

How do digital signatures ensure message authenticity?

Back

By hashing the message and encrypting the hash with a private key

Front

What is the purpose of adding a salt to a password hash?

Back

To prevent rainbow table attacks

Front

Which of the following is a use case for asymmetric encryption? Encrypting large volumes of data quickly, Securely exchanging keys over an insecure channel, Compressing files for storage, Encoding data for transmission

Back

Securely exchanging keys over an insecure channel

Front

Which hashing algorithm is considered to be the most secure as of 2024? Options: MD5, SHA-1, SHA-256, CRC32

Back

SHA-256

Front

Whats encryption?

Back

Passing text thorough a maths algorithm to scramble text

Front

Which hashing algorithm is considered to be the most secure as of 2024? Options: MD5, SHA-1, SHA-256, CRC32

Back

SHA-256