Encryption and Cryptography Flashcards
What is encryption?
The process of converting data into an unreadable format to prevent unauthorized access.
What is the difference between Symmetric and Asymmetric encryption?
Symmetric encryption uses one key for both encryption and decryption.
Aymmetric encryption uses a public key for encryption and a private key for decryption.
What is hashing?
A process that converts data into a fixed-size string of characters, which is irreversible.
What is SSL/TLS?
Secure Socket Layer/Transport Layer Security; protocols that ensure secure communication over a network.
What is a digital signature?
A cryptographic method that verifies the authenticity and integrity of a message, software, or digital document.
What is a public key?
A key used in asymmetric encryption that is publicly available and used to encrypt data.
What is a private key?
A secret key in asymmetric encryption used to decrypt data encrypted with the corresponding public key.
What is AES encryption?
Advanced Encryption Standard; a widely used symmetric encryption algorithm.
What is a certificate authority (CA)?
An entity that issues digital certificates to verify the identity of organizations and users.
What is Diffie-Hellman key exchange?
A method for two parties to securely share a private key over a public communication channel.
What is RSA encryption?
A type of asymmetric encryption that relies on the computational difficulty of factoring large numbers.
What is a cryptographic salt?
Random data added to a hash to ensure that the output is unique, even if the input is the same.
