Related InterviewSolutions

• Assume input 10-bit key, K: 0010010111 for the SDES algorithm. What is K1?(a) 00101111(b) 01011011(c) 01101000(d) 10100111I had been asked this question by my school principal while I was bunking the class.My question comes from The Simplified Data Encryption Standard (SDES) topic in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• In the DES algorithm, although the key size is 64 bits only 48bits are used for the encryption procedure, the rest are parity bits.(a) True(b) FalseI got this question in final exam.This interesting question is from The Data Encryption Standard (DES) and It’s Strength in section Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• Assume input 10-bit key, K: 0010010111 for the SDES algorithm. What is K2?(a) 11101010(b) 11011011(c) 01101000(d) 10101111The question was posed to me in an internship interview.Asked question is from The Simplified Data Encryption Standard (SDES) topic in chapter Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• In SDES, Encryption algorithm can bewritten as a composition of functions:(a) IP-1 o fK2 o fK1 o SW o IP(b) True(c) FalseThis question was addressed to me in exam.I'm obligated to ask this question of The Simplified Data Encryption Standard (SDES) in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• Using Differential Crypt-analysis, the minimum computations required to decipher the DES algorithm is(a) 2^56(b) 2^43(c) 2^55(d) 2^47I got this question during an online exam.Question is from The Data Encryption Standard (DES) and It’s Strength topic in division Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• A preferable cryptographic algorithm should have a good avalanche effect.(a) True(b) FalseThe question was asked by my college professor while I was bunking the class.The question is from The Data Encryption Standard (DES) and It’s Strength in chapter Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• The Plaintext for the Ciphertext 10100101, given that the key is 0010010111 is(a) 01100111(b) 00110110(c) 01001000(d) 01001100This question was posed to me by my college director while I was bunking the class.This question is from The Simplified Data Encryption Standard (SDES) in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• The Plaintext for the Ciphertext 11110000, given that the key is 0000000000 is(a) 01100111(b) 00000000(c) 01001000(d) 01101100I got this question in examination.This intriguing question originated from The Simplified Data Encryption Standard (SDES) topic in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• During decryption, we use the Inverse Initial Permutation (IP-1) before the IP.(a) True(b) FalseThe question was asked in unit test.Query is from The Data Encryption Standard (DES) and It’s Strength topic in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security
• The Plaintext for the Ciphertext 00100010, given that the key is 1111111111 is(a) 01100111(b) 00001010(c) 01001000(d) 01001100I had been asked this question during an interview for a job.My query is from The Simplified Data Encryption Standard (SDES) in section Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security