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- The challenge-response authentication mechanism is a security protocol that verifies the identity of a user attempting to access a system or service. This mechanism involves a challenge, which is a request for the user to provide a response that proves their identity. The response is typically a password or other form of authentication credential. The challenge-response mechanism is designed to prevent unauthorised access to sensitive information or resources by ensuring that only authorised users are granted access. The specific features of this approach that confer enhanced security compared to a conventional password-based methodology are not readily apparent.c) You are in charge of designing a secure Internet Banking System. While designing the system, you need to consider several aspects of information security, such as: i) user authentication, ii) bank server authentication, iii) distribution of the public key (if using an asymmetric cipher), iv) distribution of the symmetric key (if using a symmetric cipher), v) confidentiality of the communication between the user and the bank server, vi) integrity of the communication between the user and the bank server, vii) non-repudiation. To address these design goals, you may need to use a combination of different types of cryptographic/security primitives. Symmetric Asymmetric Message authentication Digital encryption signatures exchange Hash Public key Key Digital Certificate Ciphers functions cades (MAC) Stream Block ciphers ciphers Figure 3: Basic cryptographic building blocks Select appropriate primitives that you propose to address each of the above security goals and provide necessary…True or False 1. authentication exchange is the use of a trusted third party to assure certain properties of a data exchange 2. a loss of integrity is the unauthorized modification or destruction of information 3. the denial of service prevents or inhibits the normal use or management of communication facilities
- Access control is the method by which systems determine whether and how toadmit a user into a trusted area of the organisation.Using suitable examples, differentiate between role-based access control (RBAC)and mandatory access control (MAC). In your answer, also state theenvironment(s) where each access control is used.Multifactor authentication (MFA) is considered an important security control for what purpose? a. MFA identifies a cyberattack before it can cause damage O b. MFA distinguishes a known device from an unknown device O c. MFA provides an extra level of identity assurance (that is, validates users are who they claim to be) O d. MFA establishes internal network controlsCreate, then document 2 firewall rules that would be important to include if all outbound traffic is being denied by the firewall rules. Explain your decision. Remember, all outbound traffic is being restricted. In order to having a functioning network, what 2 firewalls rules would you create? (ie: Since you have only 2 rules in this assignment, ask yourself, Which type of outbound signals (maybe, ports, OR maybe traffic type OR maybe network access would you permit?)
- Principles of Information Security Case : A client of yours is concerned about the external intrusion on their corporate network, and those inside their environment that they seek to fire! They've heard about firewalls and they need your professional opinion as to whether, with the implementation of firewalls, they can feel 100% secure. Still, on their quest to maintain a secure environment, especially with much concern on external attacks, they would like to understand what Intrusion Detection Systems (IDS) and Intrusion Prevention System (IPS) are about. Q : What can IDS and IPS protect against?before users can access a computer or a network resource, they have to login to prove their identity. Suggest TWO (2) design methods that a user can authenticate for accessing a secured network.SCENARIO 1: You have just completed a routine security audit on the company’s information systems, and you found several areas of vulnerability. For example, file permissions have not been updated in some time, no comprehensive password policy exists, and network traffic is not fully encrypted. You noted these areas, among others, in a report to your supervisor. The report included specific recommendations to fix the problems. Your supervisor responded by saying that budgets are tight right now, and she could not approve your requests to resolve these issues. As an IT professional, you are very uncomfortable with the risk level, but you have been unable to sway your supervisor. When you discussed the situation with a colleague, he said, “Why worry about it? If it’s good enough for her, it should be good enough for you.” What do you think of your colleague’s advice, and why? Is this an ethical question? If you are still is uncomfortable, what are your options? SCENARIO 2: You work for a…
- Principles of Information Security Case : A client of yours is concerned about the external intrusion on their corporate network, and those inside their environment that they seek to fire! They've heard about firewalls and they need your professional opinion as to whether, with the implementation of firewalls, they can feel 100% secure. Still, on their quest to maintain a secure environment, especially with much concern on external attacks, they would like to understand what Intrusion Detection Systems (IDS) and Intrusion Prevention System (IPS) are about. Q : What Firewalls are designed to prevent and how?Explain the meaning of the term "firewall" in relation to network security, as well as how it is used in a number of different network topologies, and offer a justification for its need.An online store recently became victim of a cyberattack which compromised their customer name, financial account number, credit card or debit card number, website account password, and credit or debit card CVV number. Now they hired a cyber security expert so this would not occur again. They are looking for the following requirements as they upgrade their systems and practices: a) stronger encryption for customer information, b) a system for detecting when unauthorized users are trying to access their site, and c) a way to train their staff on how to keep customer and company information more secure. Design a finite state machine to model the identification and authentication process when 2-Factor Authentication is used. Identify states and state transitions. Assume that inputs are valid or invalid usernames and valid or invalid authentication factors, and outputs are messages for the user. Make sure to include explanations.