Sdde-721

| Feature | SDDE‑721 | Competing HW‑Crypto Box (Model X) | Software‑Only (Open‑Source) | |---------|----------|-----------------------------------|------------------------------| | Max Symmetric Throughput | 45 Gbps | 22 Gbps | ≤ 5 Gbps (CPU‑limited) | | Deterministic Scheduling | Yes (TSN) | No (best‑effort) | No | | Post‑Quantum Support | Yes (Kyber, Dilithium) | No | No | | Form Factor | 2 U rack / 1 U edge | 1 U rack only | N/A (software) | | Power | 150 W | 200 W | Depends on host | | Compliance | FIPS 140‑2 L3, CC EAL 4+ | FIPS 140‑2 L2 | None | | Management API | REST + OpenFlow + CLI | Proprietary CLI | REST (if wrapped) | | Cost (approx.) | $12 k–$18 k | $9 k–$12 k | $0 (license) |

The SDDE‑721 commands a premium price due to its deterministic latency guarantees, integrated post‑quantum algorithms, and broad compliance coverage.

SDDE‑721 (Secure Distributed Data Exchange, version 721) is a modern framework designed to facilitate the safe, reliable, and interoperable transfer of data across heterogeneous networks and cloud environments. It builds on the lessons learned from earlier SDDE releases (e.g., 1‑3, 4‑0, 5‑2) and introduces a set of cryptographic, policy‑driven, and operational enhancements that address the most pressing security and scalability challenges faced by enterprises, governments, and IoT ecosystems today. sdde-721

| Language | Package | Highlights | |----------|---------|------------| | Go | github.com/sdde/sdde721-go | gRPC client, streaming support, built‑in policy evaluator. | | Java | org.sdde:sdde721-java | Spring‑Boot starter, reactive streams, KMS integration. | | Python | sdde721-py | Asyncio API, Jupyter notebooks for rapid prototyping. | | Rust | sdde721-rs | Zero‑copy serialization, high‑performance enclave support. |

All SDKs are open‑source under the Apache 2.0 license and include comprehensive test suites (unit, integration, fuzz) that satisfy the SDDE‑721 Conformance Test Suite (CTS). | Feature | SDDE‑721 | Competing HW‑Crypto Box

| Integration Point | Supported Standards / APIs | |-------------------|----------------------------| | Orchestration | Kubernetes (via custom‑resource definition), OpenStack, VMware NSX | | Telemetry | Prometheus exporter, NETCONF/YANG, SNMPv3 (encrypted) | | Configuration | RESTful JSON/YAML API, CLI over SSH, Ansible modules | | Security Policies | RFC 8446 (TLS 1.3) profiles, IETF DEMO (Data‑at‑Rest Encryption), Zero‑Trust Network Access (ZTNA) policies | | Logging | Syslog (TLS), Kafka connector, local encrypted flash (32 GB) |

The SDK provides high‑level primitives such as: Example pseudocode (MQTT publish): mqtt.connect(host

/* Example: Create an encrypted flow */
sdde_flow_t *flow = sdde_flow_create("market-data",
    SDDE_PROTO_UDP,
    SDDE_CRYPTO_AES_GCM_256,
    SDDE_SCHED_FIFO,
    10e6 /* 10 Mbps guaranteed */);
/* Attach a network port */
sdde_port_attach(flow, SDDE_PORT_ID(0));

Python bindings make rapid prototyping possible, e.g.:

import sdde
engine = sdde.Engine()
flow = engine.create_flow(
    name="telemetry",
    proto=sdde.Protocol.QUIC,
    crypto=sdde.CryptoSuite.CHACHA20_POLY1305,
    qos=sdde.QoS.Deterministic(5e6)
)
flow.add_port("eth0")
engine.apply()

mqtt.connect(host, port, tls=true, client_cert, key)
mqtt.publish("sdde-721/SDDE721-0001/telemetry", json_payload, qos=1)