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 (Ed25519/Ed448), PS256/384/512, ML-DSA-44/65/87 Encryption: AES-GCM (128/192/256), ChaCha20-Poly1305, AES-CCM variants MAC: HMAC-SHA256/384/512, AES-MAC Key Distribution: Direct, AES Key Wrap, ECDH-ES+HKDF COSE Message Types…