Bluetooth Security and Exploitation

  1. Bluetooth Security Architecture
    1. Security Goals and Objectives
      1. Confidentiality
        1. Data Encryption Requirements
          1. Protection of Sensitive Information
            1. Key Management
            2. Integrity
              1. Message Authentication Codes
                1. Prevention of Data Tampering
                  1. Data Validation
                  2. Authenticity
                    1. Device Authentication Methods
                      1. User Authentication Procedures
                        1. Identity Verification
                        2. Authorization
                          1. Access Control Mechanisms
                            1. Role-Based Access Control
                              1. Permission Management
                              2. Availability
                                1. Service Continuity
                                  1. Denial of Service Prevention
                                2. Security Modes and Levels
                                  1. Bluetooth Classic Security Modes
                                    1. Mode 1: Non-secure Connections
                                      1. Mode 2: Service-level Security
                                        1. Mode 4: Secure Simple Pairing
                                        2. BLE Security Modes
                                          1. Mode 1: Encrypted Connections
                                            1. Level 1: No Security
                                              1. Level 2: Unauthenticated Pairing
                                                1. Level 3: Authenticated Pairing
                                                  1. Level 4: Authenticated LE Secure Connections
                                                  2. Mode 2: Data Signing
                                                    1. Level 1: Unauthenticated Data Signing
                                                      1. Level 2: Authenticated Data Signing
                                                  3. Bluetooth Classic Security Mechanisms
                                                    1. Pairing and Bonding Process
                                                      1. Pairing Phases Overview
                                                        1. Authentication Phase
                                                          1. Authorization Phase
                                                            1. Key Exchange Phase
                                                              1. Bonding vs Pairing Differences
                                                              2. Legacy Pairing Methods
                                                                1. PIN Code Authentication
                                                                  1. Fixed PIN Implementation
                                                                    1. User-entered PIN Process
                                                                      1. Security Weaknesses and Vulnerabilities
                                                                      2. Challenge-Response Authentication
                                                                        1. Key Generation Process
                                                                        2. Secure Simple Pairing (SSP)
                                                                          1. Just Works Method
                                                                            1. Use Cases and Applications
                                                                              1. Security Implications
                                                                                1. Attack Vectors
                                                                                2. Numeric Comparison Method
                                                                                  1. User Interaction Requirements
                                                                                    1. Attack Resistance Properties
                                                                                      1. Implementation Considerations
                                                                                      2. Passkey Entry Method
                                                                                        1. User Input Requirements
                                                                                          1. Security Considerations
                                                                                            1. Brute Force Resistance
                                                                                            2. Out of Band (OOB) Method
                                                                                              1. OOB Data Channels
                                                                                                1. Enhanced Security Features
                                                                                                  1. Implementation Challenges
                                                                                                2. Key Generation and Management
                                                                                                  1. Encryption Key Management
                                                                                                    1. Key Distribution
                                                                                                      1. Key Lifecycle Management
                                                                                                      2. Authentication Key Handling
                                                                                                      3. E0 Stream Cipher Encryption
                                                                                                        1. Algorithm Overview
                                                                                                          1. Implementation Details
                                                                                                            1. Known Weaknesses and Vulnerabilities
                                                                                                              1. Cryptanalysis Results
                                                                                                            2. Bluetooth Low Energy (BLE) Security Mechanisms
                                                                                                              1. LE Security Architecture
                                                                                                                1. Security Manager Protocol
                                                                                                                  1. Key Distribution Methods
                                                                                                                    1. Privacy Features
                                                                                                                    2. LE Pairing Methods
                                                                                                                      1. LE Legacy Pairing
                                                                                                                        1. Pairing Phases
                                                                                                                          1. Temporary Key Generation
                                                                                                                            1. Security Limitations
                                                                                                                            2. LE Secure Connections
                                                                                                                              1. Elliptic Curve Diffie-Hellman (ECDH)
                                                                                                                                1. Enhanced Security Features
                                                                                                                                  1. Numeric Comparison in LE
                                                                                                                                    1. Passkey Entry in LE
                                                                                                                                  2. Key Types and Management
                                                                                                                                    1. Long Term Key (LTK)
                                                                                                                                      1. Generation Process
                                                                                                                                        1. Storage and Retrieval
                                                                                                                                          1. Key Distribution
                                                                                                                                          2. Connection Signature Resolving Key (CSRK)
                                                                                                                                            1. Data Signing Process
                                                                                                                                              1. Signature Verification
                                                                                                                                              2. Identity Resolving Key (IRK)
                                                                                                                                                1. Address Resolution Process
                                                                                                                                                  1. Privacy Protection
                                                                                                                                                  2. Encryption Diversifier (EDIV)
                                                                                                                                                    1. Random Number (Rand)
                                                                                                                                                    2. AES-CCM Encryption
                                                                                                                                                      1. Encryption Process Overview
                                                                                                                                                        1. Nonce Generation and Management
                                                                                                                                                          1. Counter Management
                                                                                                                                                            1. Authentication Tag Verification
                                                                                                                                                            2. Privacy Features
                                                                                                                                                              1. Private Address Types
                                                                                                                                                                1. Address Resolution
                                                                                                                                                                  1. Privacy Modes

                                                                                                                                                              Previous

                                                                                                                                                              1. Introduction to Bluetooth Technology

                                                                                                                                                              Go to top

                                                                                                                                                              Next

                                                                                                                                                              3. Reconnaissance and Discovery Techniques