Bluetooth Technology

7.

Security Architecture and Implementation

7.1.

Security Framework Overview

7.1.1.

Security Architecture Layers

7.1.2.

Threat Model Considerations

7.1.3.

Security vs Usability Balance

7.2.

Authentication Methods

7.2.1.

Legacy PIN-Based Pairing

7.2.1.1.

PIN Code Entry Process

7.2.1.2.

Security Limitations

7.2.1.3.

Compatibility Considerations

7.2.2.

Secure Simple Pairing (SSP)

7.2.2.1.

SSP Overview and Benefits

7.2.2.2.

Out-of-Band (OOB) Authentication

7.2.2.3.

Numeric Comparison Method

7.2.2.4.

Passkey Entry Method

7.2.2.5.

Just Works Method

7.2.3.

LE Secure Connections

7.2.3.1.

Elliptic Curve Cryptography

7.2.3.2.

ECDH Key Exchange Process

7.2.3.3.

Passkey Entry for BLE

7.2.3.4.

Numeric Comparison for BLE

7.3.

Encryption and Data Protection

7.3.1.

Link Layer Encryption

7.3.1.1.

Encryption Key Generation

7.3.1.2.

Encryption Algorithm Implementation

7.3.2.

AES-CCM Encryption

7.3.2.1.

Advanced Encryption Standard

7.3.2.2.

Counter with CBC-MAC Mode

7.3.2.3.

Key Management Procedures

7.3.3.

Data Integrity Protection

7.3.3.1.

Message Authentication Codes

7.3.3.2.

Replay Attack Prevention

7.4.

Security Vulnerabilities and Threats

7.4.1.

Passive Attacks

7.4.1.1.

Eavesdropping Techniques

7.4.1.2.

Traffic Analysis Methods

7.4.2.

7.4.2.1.

Man-in-the-Middle Attacks

7.4.2.2.

Impersonation Attacks

7.4.2.3.

7.4.3.

Implementation Vulnerabilities

7.4.3.1.

Weak Key Generation

7.4.3.2.

Poor Random Number Generation

7.4.3.3.

Side-Channel Attacks

7.4.4.

Mitigation Strategies

7.4.4.1.

Security Best Practices

7.4.4.2.

Regular Security Updates

7.4.4.3.

Proper Implementation Guidelines

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8. Applications and Use Cases