# Security Guidlines

### **🔹 Authentication & Access Control**

To ensure security, all API requests must use one of the following authentication methods:

* **API Keys:** Secure and unique keys assigned to each user.
* **OAuth2 Tokens:** Enterprise authentication for large-scale clients.
* **JWT Tokens:** Secure session-based authentication.

For additional security, API keys can be **restricted by IP address** and **assigned granular permissions**.

**API Key Authentication**

```http
GET /facts
Authorization: Bearer YOUR_API_KEY
```

### **🔹 Encryption Standards**

All API requests and responses are secured using the latest encryption protocols:

✔ **TLS 1.3 encryption** for all communication.\
✔ **AES-256 encryption** for stored intelligence data.\
✔ **HMAC-SHA256 signing** for verifying API responses.

This ensures that data is protected from interception, tampering, and unauthorized access.

### **🔹 Secure API Key Management**

To protect your API key:

* **Never hardcode your API key** in source code.
* Store it in **environment variables** or **secure vaults**.
* **Rotate API keys** regularly to minimize security risks.
* **Restrict API access** by setting IP-based restrictions.

### **🔹 OAuth2 Authentication (Enterprise Clients Only)**

OAuth2 provides secure token-based authentication for enterprise clients.

#### **Step 1: Obtain an Access Token**

Make a request to retrieve an access token.

**OAuth2 Authentication Request**

```http
POST /oauth/token
Content-Type: application/json  

{
  "client_id": "your_client_id",
  "client_secret": "your_client_secret",
  "grant_type": "client_credentials"
}
```

**Using the OAuth2 Access Token**

```http
GET /facts
Authorization: Bearer ACCESS_TOKEN
```

### **🔹 JWT Token Authentication**

JSON Web Tokens (JWT) allow secure, stateless authentication.

To generate a JWT token, sign the request with your private key.

**JWT Token Authentication**

```http
Authorization: Bearer YOUR_JWT_TOKEN
```

### **🔹 API Rate Limits & Throttling**

To prevent abuse, the API enforces rate limits based on user tiers:

| Plan       | Requests per Minute | Requests per Day |
| ---------- | ------------------- | ---------------- |
| Free       | 10                  | 1,000            |
| Pro        | 100                 | 50,000           |
| Enterprise | Unlimited           | Unlimited        |

If rate limits are exceeded, API requests will return a **429 Too Many Requests** error.

### **🔹 Data Integrity & Verification**

All intelligence data is **cryptographically signed** to ensure authenticity. AI-driven verification eliminates misinformation by cross-referencing multiple sources.

✔ **Immutable Storage:** Data cannot be altered once recorded.\
✔ **AI Fact-Checking:** Ensures accuracy and removes false information.\
✔ **Source Transparency:** Intelligence reports include metadata for validation.

**Securing API Keys in Environment Variables (Python)**

```python
import os

API_KEY = os.getenv("TRUTH_SATELLITE_API_KEY")
```

### **🔹 Incident Response & Monitoring**

The system continuously monitors API access for anomalies. If unauthorized activity is detected:

✔ **Automatic API key revocation** for compromised accounts.\
✔ **Real-time anomaly detection** using AI-based monitoring.\
✔ **24/7 Security alerts** for all enterprise clients.

**API Rate Limit Response**

```json
{
  "error": "Too Many Requests",
  "code": 429,
  "message": "Rate limit exceeded. Please wait before making new requests."
}
```

If you suspect unauthorized access, immediately contact **<security@truthsatellite.space>**.

***


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