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Software Security Practice Sheet
Introduction
Software Security is an important part of software engineering. It involves designing and implementing secure software systems. In this practice sheet, you will learn the basics of software security and how to apply it in practice.
What is Software Security?
Software security is the practice of ensuring that software systems are secure and free from malicious attacks. It involves designing and implementing measures to protect systems from unauthorized access, data loss, and malicious attacks.
Why is Software Security Important?
Software security is important because it ensures that software systems are secure and can protect sensitive information. Without proper security measures, software systems can be vulnerable to malicious attacks, which can lead to data loss or theft of confidential information.
What are the Principles of Software Security?
The principles of software security include:
- Authentication: Ensuring that only authorized users can access the system.
- Authorization: Ensuring that users can only access the parts of the system they are allowed to.
- Data Encryption: Encrypting data so that it is unreadable to unauthorized users.
- Access Control: Limiting who can access the system and what they can do.
- Security Testing: Testing the system for vulnerabilities and fixing any issues that are found.
What are the Common Security Threats?
Common security threats include:
- Malware: Malicious software that can damage a system or steal data.
- Phishing: Attempts to trick users into providing sensitive information.
- Social Engineering: Attempts to manipulate users into revealing confidential information.
- Denial of Service (DoS): Attempts to make a system unavailable to its users.
What are the Steps for Securing a System?
The steps for securing a system include:
1. Identifying the security requirements of the system.
2. Designing security measures to protect the system.
3. Implementing the security measures.
4. Testing the system for vulnerabilities.
5. Fixing any issues that are found.
6. Monitoring the system for new threats.
Practice Problems
- What is the difference between authentication and authorization?
- What is the purpose of data encryption?
- Name three common security threats.
- What are the steps for securing a system?
- What is the purpose of security testing?
