Java Security

Java Security refers to the set of features, APIs, and best practices designed to protect applications built on the Java platform from malicious activity. Its architecture is centered on the Java Virtual Machine (JVM), which creates a controlled "sandbox" environment that isolates code and enforces security policies through components like the Bytecode Verifier, which checks for illegal code, and the Security Manager, which governs access to system resources like files and network connections. Beyond these platform-level controls, Java Security also encompasses a rich cryptography library (JCA/JCE) and the critical responsibility of developers to write secure code that avoids common vulnerabilities such as injection attacks and insecure deserialization.

1. Introduction to Java Security
   1. Core Principles of Information Security
      1. Confidentiality
         1. Data Privacy Concepts
         2. Encryption for Data Protection
         3. Access Control for Confidentiality
      2. Integrity
         1. Data Integrity Verification
         2. Hash Functions and Checksums
         3. Digital Signatures for Integrity
      3. Availability
         1. System Availability Requirements
         2. Denial of Service Prevention
         3. Redundancy and Fault Tolerance
      4. Authentication
         1. Identity Verification Concepts
         2. User Authentication Methods
         3. System Authentication Mechanisms
         4. Multi-Factor Authentication
      5. Authorization
         1. Access Control Fundamentals
         2. Permission-Based Access Control
         3. Role-Based Access Control
         4. Attribute-Based Access Control
      6. Non-repudiation
         1. Digital Signatures for Non-repudiation
         2. Audit Trails and Logging
         3. Legal and Technical Aspects
   2. The Java Security Model
      1. Evolution of Java Security
         1. Early Java Security Approaches
         2. Java 2 Security Model
         3. Modern Java Security Changes
      2. Security Architecture Overview
         1. Layered Security Approach
         2. Built-in Security Features
         3. Runtime Security Enforcement
      3. Shared Responsibility Model
         1. Platform Security Guarantees
         2. Developer Security Responsibilities
         3. Common Security Misconceptions
   3. Java Security Threats and Attack Vectors
      1. Code Injection Attacks
      2. Deserialization Vulnerabilities
      3. Privilege Escalation
      4. Information Disclosure
      5. Denial of Service Attacks