Cryptographic Hashes and Digital Signatures Quiz

What is a cryptographic hash primarily used for?

• Encrypting data

• Compressing data

• Representing data as a short string of text

• Storing data securely

What is another term for a cryptographic hash?

• Encryption key

• Message digest

• Data packet

• Checksum

Why can't you recreate the original data from a hash?

• Because a hash is encrypted

• Because a hash is a one-way function

• Because a hash is a checksum

• Because a hash is compressed

What is the primary purpose of using hashes in digital signatures?

• To compress the message

• To provide integrity and authentication

• To store the message securely

• To encrypt the message

What is a collision in the context of hashing?

• When a hash is too long

• When two different inputs produce the same hash

• When a hash is encrypted

• When a hash is compressed

Which hashing algorithm is known for having collision problems?

• RSA

• AES

• MD5

• SHA-256

What is a rainbow table used for?

• Encrypting data

• Decrypting data

• Reverse engineering hashes

• Compressing data

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

• To store the password securely

• To encrypt the password

• To make the hash unique and prevent rainbow table attacks

• To compress the password

What does a digital signature provide?

• Integrity, authentication, and non-repudiation

• Encryption

• Compression

• Data storage

What key is used to create a digital signature?

• Hash key

• Symmetric key

• Private key

• Public key