- Select the only cryptosystem known to be unbreakable. O a. Transposition cipher O b. One-time pad O c. Advanced Encryption Standard O d. Substitution cipher
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- Encrypt the plain text= cryptographic security using the key=network by employing: A.Playfair Cipher B.AutoKey CipherIs it feasible to produce safe secret keys on a desktop computer for use in cryptographic protocols using software?Multiple choice in information security The ciphertext of the message " SUNDAY" after encryption by using Simple Substitution cipher and the key =SULTAN will be: Select one: a. PRITSY b. PRIPCDIA c. PRITOY d. PRIODZA e. PRIPAQ f. ALL OTHER CHOICES INCORRECT g. PRIIDIB
- The ciphertext of the message " SUNSHINE " after encryption by using Simple Substitution cipher and the key = SULTAN will be: Choose one of the options: a. ALL OTHER CHOICES INCORRECT b. PRIODZA c. PRIPAQ d. PRITSY e. PRIIDIB f. PRIPCDIA g. PRITOYIn public key cryptosystems, which key or combination of keys is available to all the people in the group. a. Public Key b. Private key c. None d. Both Private and Public KeyThe ciphertext of the message " SUNRISE" after encryption by using Simple Substitution cipher and the key =SULTAN will be: a.PRIPDIA b. PRIPAQ c. PRIIDIB d. PRITOY e. PRIODZA f. PRITSY g. ALL OTHER CHOICES INCORRECT
- 8. Cryptography and Codes Decrypt the message NHE TSM IEA OEP ANA SBC TED TAA if it was encrypted using a tabular transposition cipher with encryption keyword OPEN.Is it possible to generate secure secret keys for use in cryptographic protocols using software on a desktop computer?20. For each of the following ciphers, say whether it is a stream cipher or block cipher. Defend your answers. a. Playfair b. Auto-key c. One-time pad d. Rotor e. Enigma
- Your first and last names as a plaintext, please perform encryption using the following cryptosystems: a. Playfair Cipher b. Rail Fence with a depth of 2head 42 Chapter 3 Basic Cryptography 2. The Caesar cipher was sometimes used in an odd way. A messengel eimplementation of the Caesar cipher? (Choose all that apply.) a. Steganography b. Symmetric encryption c. Asymmetric encryption d. Block cipherw me 19dm roy 2 gs2 at 3. Which of the following is a symmetric encryption algorithm? (Choose all that apply) а. AES b. 3DES A ga OJ A tow verl uoy Itnu qota eird to 1291 9rit hsst ton od .2 С. RSA SHAI 4. Which of the following is an asymmetric encryption algorithm? (Choose all that apply) d. boa AES Vlaxilet msrava er (d) brus a. b. Diffie-Hellman show svsd toy lunu qote air lo 1291 orit be91 Joa oda smi smoe Heziuoy Va 0 Gebi boog s at ti iaioq aids JA .2 OT xH s5. Which of the following security standards is used by the U.S. federal government to RSA pc bropjeiu por 80 ou ro areb eAon ne 2m vor zne sivsolob. d. MD5 ensure the security of its information systems? 0:20 OreEME d. ISO 17799 a. FIPS b. SANS et IA.nomud 11A mbihogle deard…q11- One type of cryptographic algorithm splits the plaintext into equal sized parts before mixing in the key and encrypting each part individually. Which of the following ciphers works in this manner? a. DHE b. MD5 c. RSA d. RC4 e. AES