WGU Course C839 - Intro to Cryptography Questions and Answers Latest 2022 Already Passed

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WGU Course C839 - Intro to Cryptography Questions and Answers Latest 2022 Already Passed What type of encryption uses different keys to encrypt and decrypt the message? A Symmetric B Private key ... C Secure D Asymmetric ✔✔D The most widely used asymmetric encryption algorithm is what? A RSA B Vigenere C DES D Caesar Cipher ✔✔A Original, unencrypted information is referred to as ____. A text B plaintext C cleantext D ciphertext ✔✔B Which of the following is NOT an asymmetric system? A PGP B RSA C SSL D DES ✔✔D 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? A User A's public key B User A's private key C User B's public key D User B's private key ✔✔C The greatest weakness with symmetric algorithms is _____. A They are less secure than asymmetric B The problem of key exchange C They are slower than asymmetric D The problem of generating keys ✔✔B Which of the following is generally true about block sizes? A Smaller block sizes increase security B Block sizes must be more than 256 bits to be secure C Block size is irrelevant to security D Larger block sizes increase security ✔✔D A _____ is a function that takes a variable-size input m and returns a fixed-size string. A Symmetric cipher B Hash C Asymmetric cipher D Feistel ✔✔B Which of the following is a cryptographic protocol that allows two parties to establish a shared key over an insecure channel? A Elliptic Curve B RSA C MD5 D Diffie-Hellman ✔✔D A _________ is a digital representation of information that identifies you as a relevant entity by a trusted third party? A Digital Signature B Hash C Ownership stamp D Digest ✔✔A What is the standard used by most digital certificates? A X.509 B CRL C RFC 2298 D OCSP ✔✔A [Show More]

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