wolfSSL releases a new product; wolfCOSE a zero alloc C embbedded COSE stack
wolfSSL has launched wolfCOSE, a lightweight C library designed for implementing COSE and CBOR. The library features zero dynamic allocation and a minimal footprint, making it suitable for embedded systems. It supports a wide range of cryptographic algorithms and is built on wolfSSL's crypto backend.
- ▪wolfCOSE implements all six COSE message types as defined in RFC 9052.
- ▪The library supports post-quantum signing with ML-DSA at three security levels.
- ▪It has a tiny footprint, with a minimal build requiring only 7.5 KB of .text.
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Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/wolfSSL/wolfCOSE |
| Publication time | Sat, 30 May 2026 20:42:28 +0000 |
| Retrieval time | 2026-05-30T20:59:46.480Z |
| Last seen | 2026-05-30T20:59:46.480Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | QpY3SFtRsHd4 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
wolfCOSE wolfCOSE is a lightweight C library implementing CBOR (RFC 8949) and COSE (RFC 9052/9053) using wolfSSL as the crypto backend. Main Features Complete RFC 9052 message set: all six COSE message types, including multi-signer COSE_Sign and multi-recipient COSE_Encrypt / COSE_Mac Post-quantum signing: ML-DSA (Dilithium) at all three security levels 40 algorithms across signing, encryption, MAC, and key distribution Zero dynamic allocation: all operations use caller-provided buffers Tiny footprint: 7.5 KB .text minimal build (Sign1+ECC), 25.6 KB full (40 algorithms), zero .data/.bss Full COSE lifecycle in ~<1KB RAM (excluding wolfCrypt internals) Path to FIPS 140-3 via wolfCrypt FIPS Certificate #4718 (sole crypto dependency) Supported Algorithms Signing: ES256, ES384, ES512, EdDSA…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.