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security_key_management
Stand: 5. Dezember 2025
Version: 1.0.0
Kategorie: Security
- 📋 Überblick
- ✅ Implementierungsstatus
- 🔑 Schlüsselarten
- 🖥️ Server-APIs
- 🔌 Provider
- 🏭 Betrieb
- ⚙️ Konfiguration
- 📚 Siehe auch
- 📝 Changelog
ThemisDB unterstützt eine externe Schlüsselverwaltung via KeyProvider-Interface. Für die Entwicklung ist standardmäßig ein MockKeyProvider aktiv; für den Produktionseinsatz stehen vollständig implementierte Provider für HashiCorp Vault und HSM (PKCS#11) zur Verfügung.
| Provider | Status | Implementierung | Use Case |
|---|---|---|---|
| MockKeyProvider | ✅ Produktionsreif | src/security/mock_key_provider.cpp |
Development/Testing |
| VaultKeyProvider | ✅ Produktionsreif |
src/security/vault_key_provider.cpp (713 Zeilen) |
Enterprise KMS |
| HSMProvider (PKCS#11) | ✅ Produktionsreif |
src/security/hsm_provider_pkcs11.cpp (511 Zeilen) |
Hardware-Schlüsselschutz |
| PKI Client (OpenSSL) | ✅ Produktionsreif | src/utils/pki_client.cpp |
RSA-Signaturen |
Wichtig: Die VaultKeyProvider- und HSMProvider-Implementierungen sind keine Stubs oder Mocks, sondern vollständige, produktionsreife Integrationen mit:
- Echten HTTP/CURL-Aufrufen (Vault KV v1/v2, Transit Engine)
- PKCS#11-Bibliotheksanbindung (dlopen/dlsym)
- Caching, Retry-Logic, Thread-Sicherheit
- Fehlerbehandlung und Audit-Integration
PKI-Integration (Nov 2025): Die PKI-Client-Implementierung (src/utils/pki_client.cpp) unterstützt echte RSA-Signaturen via OpenSSL (RSA-SHA256). ENV-Variablen (THEMIS_PKI_PRIVATE_KEY, THEMIS_PKI_CERTIFICATE, THEMIS_PKI_PRIVATE_KEY_PASSPHRASE) aktivieren produktive Signaturen; ohne ENV läuft der Server im Fallback-Modus (Development). Details siehe docs/security/pki_rsa_integration.md.
- LEK: Local Encryption Key
- KEK: Key Encryption Key
- DEK: Data Encryption Key
Hinweis: Die konkrete Nomenklatur hängt von der Deployment‑Strategie ab (siehe encryption_strategy.md).
- GET /keys – Liste verwalteter Schlüssel
- POST /keys/rotate – Schlüsselrotation auslösen
- Parameter: key_id (im JSON‑Body
{ "key_id": "DEK" }oder Query?key_id=DEK) - Antworten: { success, key_id, new_version }
- Parameter: key_id (im JSON‑Body
Fehlerfälle:
- 400 Missing key_id – Schlüssel auswählen
- 503 Keys API not available – KeyProvider nicht initialisiert
- Zweck: Entwicklung und Tests
- Speicherung: In-Memory
- Keine externen Abhängigkeiten
- Nicht für Produktion geeignet
- Vollständige HashiCorp Vault-Integration
- Features:
- KV v1/v2 Secrets Engine Support
- Transit Engine für Signaturen (sign/verify)
- Token-Authentifizierung (AppRole/AWS erweiterbar)
- Automatisches Key-Caching mit TTL (1h default, konfigurierbar)
- Thread-sichere Operationen mit Mutex
- Retry-Logic mit exponential backoff
- Fehlerbehandlung (403/404/5xx)
- Konfiguration:
VaultKeyProvider::Config(vault_addr, vault_token, kv_mount_path, kv_version, cache_ttl_seconds, etc.) - Siehe:
src/security/vault_key_provider.cpp(713 Zeilen Produktionscode)
- Echte PKCS#11-Hardware-Integration
- Unterstützte HSMs:
- SoftHSM2 (Development/CI)
- Thales Luna HSM
- Utimaco CryptoServer
- AWS CloudHSM
- YubiHSM 2
- Features:
- Session-Pooling (konfigurierbar)
- RSA-SHA256 Signaturen
- Certificate-Extraktion
- Graceful Fallback zu Stub bei fehlender Hardware
- Build:
cmake -DTHEMIS_ENABLE_HSM_REAL=ON - Siehe:
src/security/hsm_provider_pkcs11.cpp(511 Zeilen Produktionscode),docs/security/hsm_integration.md
- Empfehlung: VaultKeyProvider oder HSMProvider für Produktion verwenden
- MockKeyProvider nur für Entwicklung/Tests
- Absicherung der Endpunkte (Reverse‑Proxy/Firewall/RBAC): Nur autorisierte Admins dürfen /keys/rotate aufrufen.
- Rotation regelmäßig in der Betriebsroutine einplanen (z. B. DEK monatlich, KEK vierteljährlich).
- Überwachung: Anzahl/Versionen der Schlüssel im Admin‑Tool; Alarme für ablaufende Schlüssel.
VaultKeyProvider::Config config;
config.vault_addr = "https://vault.example.com:8200";
config.vault_token = getenv("VAULT_TOKEN"); // Aus Secrets Manager
config.kv_mount_path = "themis";
config.kv_version = "v2";
config.cache_ttl_seconds = 3600;
config.verify_ssl = true;# Environment-Variablen
export THEMIS_HSM_LIBRARY=/usr/lib/softhsm/libsofthsm2.so
export THEMIS_HSM_SLOT=0
export THEMIS_HSM_PIN=1234
export THEMIS_HSM_KEY_LABEL=themis-signing-keySiehe auch:
-
docs/security/hsm_integration.md- HSM-Setup-Guide -
docs/security/pki_rsa_integration.md- PKI-Integration - Admin‑Guide (Routing‑Hinweise)
- encryption_strategy.md / encryption_deployment.md
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