Certified Encryption Specialist Practice Questions With Verified Solutions

Certified Encryption Specialist Practice Questions With Verified Solutions What type of encryption uses different keys to encrypt and decrypt the message? +Secure +Asymmetric +Private key +Symmetric Asymmetric Asymmetric cryptography, also known as public key cryptography, uses public and private keys to encrypt and decrypt data. The most widely used asymmetric encryption algorithm is what? +Caesar Cipher +Vigenere +RSA +DES RSA The RSA encryption algorithm is one of the most widely used public key encryption algorithms that have ever been invented. It was created by the three scientists Ronald Rivest, Adi Shamir, and Leonard Adleman in 1977, and today it is increasingly being used in the network area. Original, unencrypted information is referred to as ____. +text +plaintext +cleantext +ciphertext Plaintext Plaintext is a term used in cryptography that refers to a message before encryption or after decryption. That is, it is a message in a form that is easily readable by humans. Encryption is the process of obscuring messages to make them unreadable in the absence special knowledge Which of the following is not an asymmetric system? +SSL +DES +PGP +RSA DES The Data Encryption Standard is a symmetric-key algorithm for the encryption of electronic data. Although now considered insecure, it was highly influential in the advancement of modern cryptography. In order for User A to send User B an encrypted message that only User B can read, User A must encrypt message with which of the following keys? +User B's public key +User B's private key +User A's public key +User A's private key USER B's Public Key Public key cryptography, or asymmetrical cryptography, is any cryptographic system that uses pairs of keys: public keys which may be disseminated widely, and private keys which are known only to the owner