SCRIBE Security and Compliance Guide
SCRIBE Resonance AI System - Documentation
Documentation
Technical Reference
SCRIBE Security and Compliance Guide
Security Overview
This guide covers all aspects of security for the SCRIBE Resonance AI System, including authentication, authorization, data protection, and compliance requirements. SCRIBE is designed with security as a fundamental principle.
️ Security Architecture
Security Layers
┌┐
│ Application Security Layer │
├┤
│ API Security Layer │
├┤
│ Data Security Layer │
├┤
│ Network Security Layer │
├┤
│ System Security Layer │
└┘
Security Components
- Authentication: Verify user identity
- Authorization: Control access to resources
- Encryption: Protect data at rest and in transit
- Auditing: Track security events
- Monitoring: Detect security threats
- Compliance: Meet regulatory requirements
Authentication and Authorization
API Authentication
{
"security": {
"api_key_required": true,
"api_key": "your-secret-key-here",
"api_key_rotation_days": 90,
"session_timeout": 3600,
"max_login_attempts": 5,
"lockout_duration": 900
}
}
API Key Management
import hashlib
import secrets
from datetime import datetime, timedelta
from typing import Dict, Optional
class APIKeyManager:
def __init__(self):
self.api_keys = {}
self.key_usage = {}
def generate_api_key(self, user_id: str, permissions: list) -> str:
"""Generate a new API key"""
# Generate random key
key = secrets.token_urlsafe(32)
# Hash key for storage
key_hash = hashlib.sha256(key.encode()).hexdigest()
# Store key metadata
self.api_keys[key_hash] = {
'user_id': user_id,
'permissions': permissions,
'created_at': datetime.now(),
'expires_at': datetime.now() + timedelta(days=90),
'last_used': None,
'usage_count': 0
}
return key
def validate_api_key(self, api_key: str) -> Optional[Dict]:
"""Validate API key and return metadata"""
key_hash = hashlib.sha256(api_key.encode()).hexdigest()
if key_hash not in self.api_keys:
return None
key_data = self.api_keys[key_hash]
# Check expiration
if datetime.now() > key_data['expires_at']:
return None
# Update usage
key_data['last_used'] = datetime.now()
key_data['usage_count'] += 1
return key_data
def revoke_api_key(self, api_key: str) -> bool:
"""Revoke an API key"""
key_hash = hashlib.sha256(api_key.encode()).hexdigest()
if key_hash in self.api_keys:
del self.api_keys[key_hash]
return True
return False
JWT Authentication
import jwt
import bcrypt
from datetime import datetime, timedelta
class JWTAuthenticator:
def __init__(self, secret_key: str):
self.secret_key = secret_key
self.algorithm = 'HS256'
self.token_expiry = timedelta(hours=24)
def hash_password(self, password: str) -> str:
"""Hash password using bcrypt"""
salt = bcrypt.gensalt()
return bcrypt.hashpw(password.encode(), salt).decode()
def verify_password(self, password: str, hashed: str) -> bool:
"""Verify password against hash"""
return bcrypt.checkpw(password.encode(), hashed.encode())
def generate_token(self, user_id: str, permissions: list) -> str:
"""Generate JWT token"""
payload = {
'user_id': user_id,
'permissions': permissions,
'exp': datetime.utcnow() + self.token_expiry,
'iat': datetime.utcnow()
}
return jwt.encode(payload, self.secret_key, algorithm=self.algorithm)
def verify_token(self, token: str) -> Optional[Dict]:
"""Verify JWT token"""
try:
payload = jwt.decode(token, self.secret_key, algorithms=[self.algorithm])
return payload
except jwt.ExpiredSignatureError:
return None
except jwt.InvalidTokenError:
return None
Role-Based Access Control (RBAC)
from enum import Enum
from typing import Set, List
class Permission(Enum):
READ_SCANS = "read_scans"
WRITE_SCANS = "write_scans"
DELETE_SCANS = "delete_scans"
READ_CONFIG = "read_config"
WRITE_CONFIG = "write_config"
ADMIN = "admin"
class Role:
def __init__(self, name: str, permissions: Set[Permission]):
self.name = name
self.permissions = permissions
# Define roles
ROLES = {
'viewer': Role('viewer', {Permission.READ_SCANS}),
'operator': Role('operator', {
Permission.READ_SCANS,
Permission.WRITE_SCANS,
Permission.READ_CONFIG
}),
'admin': Role('admin', set(Permission))
}
class RBAC:
def __init__(self):
self.user_roles = {}
def assign_role(self, user_id: str, role_name: str):
"""Assign role to user"""
if role_name not in ROLES:
raise ValueError(f"Role {role_name} not found")
self.user_roles[user_id] = ROLES[role_name]
def has_permission(self, user_id: str, permission: Permission) -> bool:
"""Check if user has permission"""
if user_id not in self.user_roles:
return False
return permission in self.user_roles[user_id].permissions
def get_user_permissions(self, user_id: str) -> Set[Permission]:
"""Get all permissions for user"""
if user_id not in self.user_roles:
return set()
return self.user_roles[user_id].permissions
Data Security
Encryption at Rest
from cryptography.fernet import Fernet
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
import base64
import os
class DataEncryption:
def __init__(self, password: str):
# Generate key from password
salt = os.urandom(16)
kdf = PBKDF2HMAC(
algorithm=hashes.SHA256(),
length=32,
salt=salt,
iterations=100000,
)
key = base64.urlsafe_b64encode(kdf.derive(password.encode()))
self.cipher = Fernet(key)
self.salt = salt
def encrypt_data(self, data: str) -> str:
"""Encrypt data"""
encrypted_data = self.cipher.encrypt(data.encode())
return base64.urlsafe_b64encode(encrypted_data).decode()
def decrypt_data(self, encrypted_data: str) -> str:
"""Decrypt data"""
encrypted_bytes = base64.urlsafe_b64decode(encrypted_data.encode())
decrypted_data = self.cipher.decrypt(encrypted_bytes)
return decrypted_data.decode()
def encrypt_file(self, file_path: str, output_path: str):
"""Encrypt file"""
with open(file_path, 'rb') as f:
file_data = f.read()
encrypted_data = self.cipher.encrypt(file_data)
with open(output_path, 'wb') as f:
f.write(encrypted_data)
def decrypt_file(self, encrypted_path: str, output_path: str):
"""Decrypt file"""
with open(encrypted_path, 'rb') as f:
encrypted_data = f.read()
decrypted_data = self.cipher.decrypt(encrypted_data)
with open(output_path, 'wb') as f:
f.write(decrypted_data)
Database Security
import sqlite3
import hashlib
from contextlib import contextmanager
class SecureDatabase:
def __init__(self, db_path: str, encryption_key: str):
self.db_path = db_path
self.encryption = DataEncryption(encryption_key)
self._secure_database()
def _secure_database(self):
"""Secure database configuration"""
with sqlite3.connect(self.db_path) as conn:
# Enable foreign keys
conn.execute("PRAGMA foreign_keys=ON")
# Set secure permissions
conn.execute("PRAGMA journal_mode=WAL")
conn.execute("PRAGMA synchronous=FULL")
conn.execute("PRAGMA cache_size=1000")
# Create secure tables
conn.execute("""
CREATE TABLE IF NOT EXISTS secure_scans (
id INTEGER PRIMARY KEY AUTOINCREMENT,
scan_data TEXT, -- Encrypted scan data
timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
user_id TEXT,
checksum TEXT
)
""")
conn.commit()
@contextmanager
def get_connection(self):
"""Get secure database connection"""
conn = sqlite3.connect(self.db_path)
conn.row_factory = sqlite3.Row
try:
yield conn
finally:
conn.close()
def store_scan_result(self, scan_data: dict, user_id: str):
"""Store encrypted scan result"""
# Serialize and encrypt data
import json
data_json = json.dumps(scan_data)
encrypted_data = self.encryption.encrypt_data(data_json)
# Calculate checksum
checksum = hashlib.sha256(data_json.encode()).hexdigest()
with self.get_connection() as conn:
conn.execute(
"INSERT INTO secure_scans (scan_data, user_id, checksum) VALUES (?, ?, ?)",
(encrypted_data, user_id, checksum)
)
conn.commit()
def retrieve_scan_result(self, scan_id: int, user_id: str) -> dict:
"""Retrieve and decrypt scan result"""
with self.get_connection() as conn:
cursor = conn.execute(
"SELECT scan_data, checksum FROM secure_scans WHERE id = ? AND user_id = ?",
(scan_id, user_id)
)
row = cursor.fetchone()
if not row:
raise ValueError("Scan not found or access denied")
# Decrypt data
decrypted_data = self.encryption.decrypt_data(row['scan_data'])
scan_data = json.loads(decrypted_data)
# Verify checksum
checksum = hashlib.sha256(decrypted_data.encode()).hexdigest()
if checksum != row['checksum']:
raise ValueError("Data integrity check failed")
return scan_data
SSL/TLS Configuration
from fastapi import FastAPI
from fastapi.middleware.httpsredirect import HTTPSRedirectMiddleware
from fastapi.middleware.trustedhost import TrustedHostMiddleware
import ssl
app = FastAPI()
# Add security middleware
app.add_middleware(HTTPSRedirectMiddleware)
app.add_middleware(
TrustedHostMiddleware,
allowed_hosts=["yourdomain.com", "*.yourdomain.com"]
)
# SSL Configuration
ssl_context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
ssl_context.load_cert_chain(certfile="cert.pem", keyfile="key.pem")
ssl_context.load_verify_locations(cafile="ca.pem")
ssl_context.verify_mode = ssl.CERT_REQUIRED
@app.on_event("startup")
async def startup_event():
"""Configure SSL on startup"""
import uvicorn
config = uvicorn.Config(
app="main:app",
host="0.0.0.0",
port=443,
ssl=ssl_context,
reload=False
)
Network Security
Firewall Configuration
# UFW Firewall Rules
sudo ufw default deny incoming
sudo ufw default allow outgoing
# Allow SSH
sudo ufw allow 22/tcp
# Allow HTTPS
sudo ufw allow 443/tcp
# Allow HTTP (redirect to HTTPS)
sudo ufw allow 80/tcp
# Allow API (internal only)
sudo ufw allow from 10.0.0.0/8 to any port 8000
sudo ufw allow from 192.168.0.0/16 to any port 8000
# Enable firewall
sudo ufw enable
Nginx Security Configuration
server {
listen 80;
server_name yourdomain.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2;
server_name yourdomain.com;
# SSL Configuration
ssl_certificate /path/to/cert.pem;
ssl_certificate_key /path/to/key.pem;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512;
ssl_prefer_server_ciphers off;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
# Security Headers
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains";
add_header Content-Security-Policy "default-src 'self'";
# Rate Limiting
limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
limit_req zone=api burst=20 nodelay;
location / {
limit_req zone=api;
proxy_pass http://127.0.0.1:8000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
DDoS Protection
from fastapi import Request, HTTPException
from slowapi import Limiter, _rate_limit_exceeded_handler
from slowapi.util import get_remote_address
from slowapi.errors import RateLimitExceeded
# Rate limiter
limiter = Limiter(key_func=get_remote_address)
app.state.limiter = limiter
app.add_exception_handler(RateLimitExceeded, _rate_limit_exceeded_handler)
@app.post("/scan")
@limiter.limit("10/minute")
async def scan_endpoint(request: Request):
"""Scan endpoint with rate limiting"""
# Implementation here
pass
# Advanced DDoS protection
class DDoSProtection:
def __init__(self):
self.request_counts = {}
self.blocked_ips = {}
def check_request(self, ip: str) -> bool:
"""Check if request should be allowed"""
current_time = time.time()
# Check if IP is blocked
if ip in self.blocked_ips:
if current_time < self.blocked_ips[ip]:
return False
else:
del self.blocked_ips[ip]
# Count requests in last minute
if ip not in self.request_counts:
self.request_counts[ip] = []
# Remove old requests
self.request_counts[ip] = [
req_time for req_time in self.request_counts[ip]
if current_time - req_time < 60
]
# Check rate limit
if len(self.request_counts[ip]) > 100: # 100 requests per minute
# Block IP for 1 hour
self.blocked_ips[ip] = current_time + 3600
return False
self.request_counts[ip].append(current_time)
return True
Security Monitoring
Intrusion Detection
import logging
from datetime import datetime
from typing import Dict, List
class SecurityMonitor:
def __init__(self):
self.logger = logging.getLogger("security")
self.security_events = []
self.alert_thresholds = {
'failed_logins': 5,
'suspicious_requests': 10,
'unauthorized_access': 1
}
def log_security_event(self, event_type: str, details: Dict):
"""Log security event"""
event = {
'timestamp': datetime.now(),
'type': event_type,
'details': details
}
self.security_events.append(event)
# Check for alerts
self.check_alerts(event_type)
# Log event
self.logger.warning(f"Security event: {event_type} - {details}")
def check_alerts(self, event_type: str):
"""Check if event should trigger alert"""
recent_events = [
event for event in self.security_events
if event['type'] == event_type and
(datetime.now() - event['timestamp']).total_seconds() < 300 # 5 minutes
]
threshold = self.alert_thresholds.get(event_type, 10)
if len(recent_events) >= threshold:
self.send_alert(event_type, len(recent_events))
def send_alert(self, event_type: str, count: int):
"""Send security alert"""
alert_message = f"Security Alert: {count} {event_type} events in 5 minutes"
# Send to monitoring system
print(f"ALERT: {alert_message}")
# Could integrate with external alerting systems
# - Email notifications
# - Slack alerts
# - SMS notifications
# - PagerDuty
Audit Logging
import json
from datetime import datetime
class AuditLogger:
def __init__(self, log_file: str = "audit.log"):
self.log_file = log_file
def log_action(self, user_id: str, action: str, resource: str, details: Dict = None):
"""Log user action for audit"""
audit_entry = {
'timestamp': datetime.now().isoformat(),
'user_id': user_id,
'action': action,
'resource': resource,
'details': details or {},
'ip_address': self._get_client_ip()
}
# Write to audit log
with open(self.log_file, 'a') as f:
f.write(json.dumps(audit_entry) + '\n')
def _get_client_ip(self) -> str:
"""Get client IP address"""
# Implementation depends on your framework
return "127.0.0.1"
def get_audit_trail(self, user_id: str = None, start_time: datetime = None) -> List[Dict]:
"""Get audit trail"""
audit_entries = []
with open(self.log_file, 'r') as f:
for line in f:
try:
entry = json.loads(line.strip())
# Filter by user_id if specified
if user_id and entry.get('user_id') != user_id:
continue
# Filter by start_time if specified
if start_time:
entry_time = datetime.fromisoformat(entry['timestamp'])
if entry_time < start_time:
continue
audit_entries.append(entry)
except json.JSONDecodeError:
continue
return audit_entries
Compliance Requirements
GDPR Compliance
from datetime import datetime, timedelta
class GDPRCompliance:
def __init__(self):
self.data_subject_requests = []
def consent_required(self) -> bool:
"""Check if consent is required for data processing"""
return True
def record_consent(self, user_id: str, consent_data: Dict):
"""Record user consent"""
consent_entry = {
'user_id': user_id,
'timestamp': datetime.now(),
'consent_given': consent_data['consent'],
'purpose': consent_data['purpose'],
'retention_period': consent_data.get('retention_period', 365)
}
# Store consent record
self._store_consent(consent_entry)
def right_to_be_forgotten(self, user_id: str):
"""Delete all user data (right to be forgotten)"""
# Delete from database
self._delete_user_data(user_id)
# Delete from logs (if necessary)
self._anonymize_logs(user_id)
# Record deletion request
self._record_deletion_request(user_id)
def data_portability(self, user_id: str) -> Dict:
"""Export user data (right to data portability)"""
user_data = {
'personal_data': self._get_personal_data(user_id),
'scan_history': self._get_scan_history(user_id),
'preferences': self._get_user_preferences(user_id),
'consent_records': self._get_consent_records(user_id)
}
return user_data
def retain_data_policy(self, data_type: str) -> int:
"""Get data retention policy in days"""
policies = {
'scan_data': 365, # 1 year
'user_preferences': 1825, # 5 years
'audit_logs': 2555, # 7 years
'consent_records': 2555 # 7 years
}
return policies.get(data_type, 365)
SOC 2 Compliance
class SOC2Compliance:
def __init__(self):
self.security_controls = {
'access_control': self._validate_access_control,
'encryption': self._validate_encryption,
'audit_logging': self._validate_audit_logging,
'incident_response': self._validate_incident_response,
'vulnerability_management': self._validate_vulnerability_management
}
def validate_compliance(self) -> Dict[str, bool]:
"""Validate SOC 2 compliance"""
results = {}
for control_name, validator in self.security_controls.items():
try:
results[control_name] = validator()
except Exception as e:
results[control_name] = False
logging.error(f"Compliance validation failed for {control_name}: {e}")
return results
def _validate_access_control(self) -> bool:
"""Validate access control implementation"""
# Check if RBAC is implemented
# Check if authentication is required
# Check if session management is secure
return True # Implementation specific
def _validate_encryption(self) -> bool:
"""Validate encryption implementation"""
# Check if data at rest is encrypted
# Check if data in transit is encrypted
# Check if key management is secure
return True # Implementation specific
def _validate_audit_logging(self) -> bool:
"""Validate audit logging implementation"""
# Check if all actions are logged
# Check if logs are tamper-evident
# Check if log retention policy is enforced
return True # Implementation specific
Incident Response
Security Incident Response Plan
from enum import Enum
from datetime import datetime
class IncidentSeverity(Enum):
LOW = "low"
MEDIUM = "medium"
HIGH = "high"
CRITICAL = "critical"
class SecurityIncident:
def __init__(self, incident_id: str, severity: IncidentSeverity, description: str):
self.incident_id = incident_id
self.severity = severity
self.description = description
self.created_at = datetime.now()
self.status = "open"
self.actions_taken = []
def add_action(self, action: str):
"""Add action taken"""
self.actions_taken.append({
'action': action,
'timestamp': datetime.now()
})
def resolve(self):
"""Resolve incident"""
self.status = "resolved"
self.resolved_at = datetime.now()
class IncidentResponse:
def __init__(self):
self.incidents = []
self.escalation_thresholds = {
IncidentSeverity.LOW: 24, # 24 hours
IncidentSeverity.MEDIUM: 8, # 8 hours
IncidentSeverity.HIGH: 2, # 2 hours
IncidentSeverity.CRITICAL: 0.5 # 30 minutes
}
def create_incident(self, severity: IncidentSeverity, description: str) -> SecurityIncident:
"""Create new security incident"""
incident_id = f"INC-{datetime.now().strftime('%Y%m%d')}-{len(self.incidents) + 1:04d}"
incident = SecurityIncident(incident_id, severity, description)
self.incidents.append(incident)
# Check for escalation
self._check_escalation(incident)
return incident
def _check_escalation(self, incident: SecurityIncident):
"""Check if incident should be escalated"""
threshold = self.escalation_thresholds[incident.severity]
if threshold > 0:
# Schedule escalation check
import threading
threading.Timer(threshold * 3600, self._escalate_incident, args=[incident]).start()
def _escalate_incident(self, incident: SecurityIncident):
"""Escalate incident if not resolved"""
if incident.status == "open":
incident.add_action("Escalated due to timeout")
self._notify_stakeholders(incident)
def _notify_stakeholders(self, incident: SecurityIncident):
"""Notify stakeholders about incident"""
notification = f"""
Security Incident Escalation
Incident ID: {incident.incident_id}
Severity: {incident.severity.value}
Description: {incident.description}
Created: {incident.created_at}
Actions Taken: {len(incident.actions_taken)}
"""
# Send notification based on severity
if incident.severity in [IncidentSeverity.HIGH, IncidentSeverity.CRITICAL]:
# Immediate notification
self._send_immediate_notification(notification)
else:
# Email notification
self._send_email_notification(notification)
Security Configuration
Complete Security Configuration
{
"security": {
"authentication": {
"api_key_required": true,
"jwt_enabled": true,
"session_timeout": 3600,
"max_login_attempts": 5,
"lockout_duration": 900,
"password_policy": {
"min_length": 12,
"require_uppercase": true,
"require_lowercase": true,
"require_numbers": true,
"require_symbols": true
}
},
"authorization": {
"rbac_enabled": true,
"default_role": "viewer",
"role_hierarchy": ["viewer", "operator", "admin"]
},
"encryption": {
"data_at_rest": true,
"data_in_transit": true,
"algorithm": "AES-256-GCM",
"key_rotation_days": 90
},
"network": {
"ssl_required": true,
"tls_version": "1.3",
"allowed_ciphers": [
"TLS_AES_256_GCM_SHA384",
"TLS_CHACHA20_POLY1305_SHA256",
"TLS_AES_128_GCM_SHA256"
],
"rate_limiting": {
"enabled": true,
"requests_per_minute": 100,
"burst_size": 20
}
},
"monitoring": {
"audit_logging": true,
"security_events": true,
"intrusion_detection": true,
"alert_thresholds": {
"failed_logins": 5,
"suspicious_requests": 10,
"unauthorized_access": 1
}
},
"compliance": {
"gdpr_enabled": true,
"data_retention_days": 365,
"right_to_be_forgotten": true,
"data_portability": true,
"audit_retention_days": 2555
}
}
}
Security Best Practices
Development Security
- Use parameterized queries to prevent SQL injection
- Validate all input data
- Implement proper error handling
- Use secure coding practices
- Regular security testing
Operational Security
- Regular security audits
- Penetration testing
- Vulnerability scanning
- Security monitoring
- Incident response planning
Data Protection
- Encrypt sensitive data
- Implement access controls
- Regular data backups
- Secure disposal of data
- Privacy by design
Last Updated: 2026-05-06
Security Guide Version: 1.0.0
Status: Production Ready