Question 17 (1 point) Which of the following statements is NOT true? 1) Barcodes incorporate an integrated circuit, optionally with an on-board microprocesso 2) Differential power analysis is one of the side channel attacks, based on the analysis of power consumption. RFID chips operate using radio waves, and hence, they can release information WITHOUT the need for direct physical contact. U.S. passports feature an embedded RFID chip that contains information about the owner. 3) Question 18 (1 point) Which of the following statements is NOT true? 1) Spoofing uses false addresses. 2) Digital signatures can be employed to address the repudiation problem. 3) Traceback is an attack on confidentiality. 4) The tool of packet sniffing can be used for eavesdropping. Question 19 (1 point) Which of the following statements is true? 1) Denial of service attacks may harm the goal of confidentiality. 2) Unauthorized alteration may harm the goal of message integrity. 3) Phishing is an example of repudiation attacks. 4) E-mail spam is an example of man-in-the-middle attacks