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Comparison · DevOps
Libreswan vs Rivet
A side-by-side editorial comparison of Libreswan and Rivet — release velocity, themes, recent moves, and the top alternatives to consider.
Libreswan vs Rivet: at a glance
| Feature | Libreswan | Rivet |
|---|---|---|
| Sector | DevOps | DevOps |
| Velocity score | 6.3 | 7.5 |
| Sparks · 30d | 0 | 2 |
| Top themes | ipsec, post-quantum crypto, ikev2, rfc 9370 | actor-platform, agentic-backend, byoc-enterprise, dynamic-apps |
| Last editorial update | 1mo ago | 8h ago |
| Website | Visit → | — |
What is Libreswan?
Libreswan puts post-quantum key exchange into IKEv2 — ML-KEM 768 ships in v5.4.
Libreswan spent the last two releases on security patches, including a CVE found when the project ran an AI audit over its own codebase. v5.4 breaks that pattern: it implements RFC 9370's multiple-key-exchange machinery end to end — IKE_INTERMEDIATE, IKE_ADDITIONAL_KE and IKE_FOLLOWUP_KE — and uses it to carry ML_KEM_768 in IKE_SA_INIT and IKE_INTERMEDIATE. The rest of the release is a wide maintenance sweep across kernel integration on the BSDs, config parsing and logging.
What is Rivet?
Rivet is shipping the complete agentic backend stack: actors, durable streams, BYOC, MCP integration, and a V8 app runtime in one month.
Rivet is in an intense release sprint across every layer of its platform. In roughly 25 days: JWT authentication for actors with direct client connections, OpenTelemetry tracing for actors and workflows, BYOC enterprise deployment into customer AWS/GCP VPCs, MCP integration for AI coding tools, Durable Streams on actor infrastructure, and Dynamic Apps (a V8 isolate runtime for deploying user-generated AI applications). Older entries reveal a zero-disk S3-tiered SQLite engine and an agentOS execution API for JavaScript and Python. The product is moving faster than almost any comparable infrastructure platform.
Libreswan vs Rivet: editorial side-by-side
Libreswan
6.3DEVOPS
Libreswan puts post-quantum key exchange into IKEv2 — ML-KEM 768 ships in v5.4.
◆ Current state
Libreswan spent the last two releases on security patches, including a CVE found when the project ran an AI audit over its own codebase. v5.4 breaks that pattern: it implements RFC 9370's multiple-key-exchange machinery end to end — IKE_INTERMEDIATE, IKE_ADDITIONAL_KE and IKE_FOLLOWUP_KE — and uses it to carry ML_KEM_768 in IKE_SA_INIT and IKE_INTERMEDIATE. The rest of the release is a wide maintenance sweep across kernel integration on the BSDs, config parsing and logging.
◆ Where it's heading
The post-quantum work is the spine of this release and it is not experimental framing — it is standards-track RFC 9370 plus a hard dependency on NSS 3.118.1, meaning distributions have to move their crypto library before users can turn it on. Around it, the project keeps grinding on operator experience: better proposal parsing, more specific error messages, traffic selectors and DIGSIG algorithms in logs, and rate-limited logging. Experimental flags for subnet leasing and updown-config suggest the next capability additions are already staged.
◆ Prediction
Expect ML-KEM to move from supported to recommended in default proposals once NSS 3.118.1 is widely packaged, and the experimental leftaddresspool subnet leasing and per-connection debug options to stabilize in a following release.
Rivet
7.5DEVOPS
Rivet is shipping the complete agentic backend stack: actors, durable streams, BYOC, MCP integration, and a V8 app runtime in one month.
◆ Current state
Rivet is in an intense release sprint across every layer of its platform. In roughly 25 days: JWT authentication for actors with direct client connections, OpenTelemetry tracing for actors and workflows, BYOC enterprise deployment into customer AWS/GCP VPCs, MCP integration for AI coding tools, Durable Streams on actor infrastructure, and Dynamic Apps (a V8 isolate runtime for deploying user-generated AI applications). Older entries reveal a zero-disk S3-tiered SQLite engine and an agentOS execution API for JavaScript and Python. The product is moving faster than almost any comparable infrastructure platform.
◆ Where it's heading
Rivet is building toward a complete backend platform for AI applications — one where persistent stateful actors, durable messaging, serverless AI app deployment, enterprise security, and native AI tool integration all run under one abstraction. Dynamic Apps plus Rivet Actors could become a unified PaaS where both AI-generated user-facing apps and their backend state live on Rivet infrastructure. The BYOC offering opens enterprise accounts that require data residency, and the MCP integration ensures Rivet is visible from within AI coding environments where developers make infrastructure decisions.
◆ Prediction
Dynamic Apps will expand to Python (matching agentOS's recent JavaScript + Python execution API addition), and Rivet will consolidate billing across actor-hours and Dynamic App compute into a single predictable spend model. BYOC pricing will be announced publicly as the enterprise motion becomes more defined.
Alternatives to Libreswan and Rivet
Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Libreswan or Rivet.
CodeRabbit
CodeRabbit launches a cross-repo PR triage queue that ranks every open pull request with evidence.
GitHub
GitHub turns Copilot into an org-wide default, adds memory to agentic security fixes.
containerd
containerd patches CVE-2026-53493 across five branches the same day 2.4.0 ships 658 commits
Scalingo
Scalingo ships routine runtime maintenance at high cadence while expanding database observability through its SDK.
Sanity
Sanity is building the headless CMS as an AI agent interface — a new MCP release nearly every day.
See all Libreswan alternatives → · See all Rivet alternatives →
Recent activity from Libreswan and Rivet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoRivetIntroducing JWT Authentication for Rivet Actors
- 2d agoRivetIntroducing OpenTelemetry for Rivet Actors and Workflows
- 10d agoRivetRivet BYOC: run the control plane in your own AWS or GCP VPC ⚡
- 15d agoRivetRivet MCP: connect Claude Code, Cursor, and Codex to your Actors
- 22d agoRivetDurable Streams now supports Rivet Actors
- 25d agoRivetIntroducing Dynamic Apps: Deploy AI-Generated Apps for Your Users ⚡
- 1mo agoLibreswan5.4: ML-KEM 768 and RFC 9370 multiple key exchanges for IKEv2 ⚡
- 2mo agoLibreswan5.3.2: FIPS-mode daemon crash from malformed X.509 certificates
- 3mo agoLibreswan5.3.1: three CVEs and a newer-GCC compile fix
- 2y agoLibreswanIKEv1 cryptosuite defaults tightened; systemd libxz dependency dropped
- 2y agoLibreswanCompile error fix carried over from 4.13
Frequently asked questions
What is the difference between Libreswan and Rivet?
They serve adjacent needs but don't currently overlap on shipped themes. Rivet is currently shipping more aggressively (velocity 7.5 vs 6.3), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Libreswan better than Rivet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rivet is currently shipping more aggressively (velocity 7.5 vs 6.3), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to Libreswan?
Top Libreswan alternatives in DevOps are ranked by recent ship velocity. Browse the "Libreswan alternatives" section above for the current picks, or visit /alternatives/libreswan for the full list with editorial commentary on each.
What are the best alternatives to Rivet?
Top Rivet alternatives in DevOps are ranked by recent ship velocity. Browse the "Rivet alternatives" section above for the current picks, or visit /alternatives/rivet for the full list with editorial commentary on each.