Understanding Cryptography

What is the technique of securing information and communications through the use of codes?

• Cryptography

• Cryptanalysis

• Cryptology

• Ciphertext

What does the prefix 'crypt' mean?

• Hidden

• Writing

• Secure

• Code

What is the process of disguising a message to hide its substance?

• Encryption

• Decryption

• Ciphering

• Encoding

What is an encrypted message called?

• Ciphertext

• Plaintext

• Key

• Algorithm

What is the process of turning ciphertext back into plaintext?

• Decryption

• Encryption

• Encoding

• Decoding

What is a cipher?

• An algorithm for performing encryption or decryption

• A type of key

• A form of plaintext

• A method of cryptanalysis

What is the science of analyzing and breaking secure communication called?

• Cryptanalysis

• Cryptography

• Cryptology

• Ciphering

What does a cryptosystem consist of?

• Algorithms, protocols, and key management processes

• Only algorithms

• Only keys

• Protocols and keys

What is the original message that is to be protected through encryption called?

• Plaintext

• Ciphertext

• Key

• Algorithm

What is the encrypted form of the plaintext called?

• Ciphertext

• Plaintext

• Key

• Algorithm