feat: Implement log data encryption and sensitive data protection for issue #142 by anshul23102 · Pull Request #154 · Dharanish-AM/Logara-AI

anshul23102 · 2026-06-12T13:35:53Z

Summary

Resolves #142 by implementing comprehensive log data encryption and sensitive data protection, ensuring compliance with security standards and protecting against data breaches.

Problem Addressed

Log data not encrypted
Sensitive information exposed
Passwords in log files
API keys visible
User data unprotected
No access controls
Compliance violations

Solution Implemented

1. End-to-End Encryption

AES-256 Fernet symmetric encryption:

Encrypt all log data at rest
Decrypt only on authorized access
PBKDF2 key derivation
Configurable iteration count (100k)
Secure key storage (mode 600)

2. Sensitive Data Redaction

Pattern-based automatic redaction:

Passwords and credentials
API keys and tokens
Secrets
Personally identifiable information (PII)
Credit cards (PAN)
Social Security numbers
Email addresses
Private keys

3. Key Management

Comprehensive key management:

Key generation and storage
PBKDF2 derivation from password
Key file encryption (mode 600)
Automatic key rotation
Master key support
Secure initialization

4. Access Control

Role-based access control (RBAC):

User-resource-action model
Permission grants
Permission revocation
Fine-grained access control
Deny-by-default approach

5. Audit Logging

Comprehensive audit trail:

Track all access attempts
Log denied accesses
User-specific logs
Timestamps on all events
Audit log rotation
Compliance reporting

6. Compliance Support

Security compliance features:

Encryption status monitoring
Compliance reports
Audit log exports
Access denial tracking
Key rotation tracking

Technical Details

Encryption Pipeline

Raw Log
  |
  v
Redact Sensitive Data
  |
  v
Detect Sensitive Fields
  |
  v
Encrypt Log Payload
  |
  v
Store Encrypted Log

Sensitive Data Detection

Pattern matching for:

SQL credentials
API credentials
OAuth tokens
AWS keys
PII data
Financial information
Custom patterns

Key Derivation

PBKDF2 parameters:

Algorithm: SHA256
Iterations: 100,000
Salt: Fixed (can be randomized)
Output: 256-bit key

Access Control Flow

User Request
  |
  v
Check Permissions
  |
  +-- Deny: Log attempt
  |
  +-- Grant: Decrypt & Return
  |
  v
Audit Log Entry

API Endpoints

Encryption & Redaction

GET /api/security/status - Encryption status
POST /api/security/redact - Redact sensitive data
POST /api/security/detect-sensitive - Detect sensitive fields

Access Control

POST /api/security/access/check - Check access
POST /api/security/access/grant - Grant access
POST /api/security/access/revoke - Revoke access

Audit & Compliance

GET /api/security/audit-log - View audit logs
POST /api/security/compliance/report - Compliance report
GET /api/security/health - Security health

Key Management

POST /api/security/key/rotate - Rotate encryption key

Configuration

Environment variables:

ENCRYPTION_ENABLED - Enable/disable encryption
ENCRYPTION_KEY_FILE - Path to key file
MASTER_PASSWORD - Optional master password

Features

Transparent encryption/decryption
Automatic sensitive data masking
Per-service access control
Comprehensive audit trail
Key rotation support
Compliance reporting
Zero-trust approach

Integration

Works with existing log pipeline
Non-breaking changes
Optional per-log basis
Transparent to applications
Compatible with storage backends

Testing

Encryption/decryption correctness
Sensitive data detection
Access control enforcement
Audit logging accuracy
Key rotation process
Compliance reporting

Compliance

GDPR data protection
HIPAA encryption requirements
PCI-DSS sensitive data protection
SOC 2 audit trails
Custom compliance policies

Closes #142

anshul23102 · 2026-06-12T13:36:00Z

@Dharanish-AM Please review this PR for the GSSoC 2026 program.

Suggested Labels

gssoc-approved (GSSoC 2026 program label)
security (security implementation)
encryption (data encryption)
compliance (compliance support)
privacy (data privacy)
feature (new security feature)

This PR implements comprehensive log data encryption and sensitive data protection addressing issue #142, ensuring compliance with GDPR, HIPAA, PCI-DSS, and SOC 2 requirements through AES-256 encryption, sensitive data redaction, access control, and audit logging.

Dharanish-AM · 2026-06-12T13:36:10Z

⚠️ Merge Conflict Detected! This PR cannot be merged automatically because it conflicts with the main branch.