wolfHSM Release v1.4.0 (February 16, 2026)
Due to NDA restrictions, access to the Infineon, ST Micro, TI, and Renesas ports is limited. Please contact support@wolfssl.com for access.
New Feature Additions
- Added TLS transport for authentication between client and server peers in #227
- Added global keystore enabling cryptographic keys to be shared across multiple clients with automatic cache routing in #224
- Added key usage policy flags (encrypt, decrypt, sign, verify, wrap, derive) set by clients and enforced by the server in #233
- Added server thread safety with NVM locking abstraction, enabling multiple server contexts to safely share NVM and global keystore resources in #275
- Added logging framework with callback-based backend, ring buffer, and POSIX file log engines in #253
- Added NVM object flag enforcement including non-destroyable flag and key revocation support in #263
- Added ED25519 signature scheme support with DMA in #254
- Added NIST SP 800-108 CMAC KDF support in #228
- Added generic data wrap/unwrap for server-side data wrapping in #226
Bug Fixes
- Fixed potential DMA buffer handling errors where request buffer sizes were overwritten by server responses in #284
- Fixed potential buffer overflow in key cache by capping label size and corrected variable name logic error in
wh_Client_CommInfoResponsein #234 - Fixed CMAC DMA message struct padding, alignment bugs in SHE code, and test key cache leaks in #285
- Fixed ECDH without DERIVE flag with
WOLF_CRYPTOCB_ONLY_ECCin #251 - Fixed compilation with
NO_AESdefined and removed extra printfs in #260 - Fixed wrong
#endifplacement inwh_client_crypto.cand#includeorder innvm_flash_log.hin #243 - Fixed SHE NVM metadata struct initialization so flags are set to 0 in #273
- Added NULL checks to message translation functions and additional input sanitization to server request handlers in #236 and #240
Enhancements and Optimizations
- Refactored CMAC to use client-held state instead of persisting state on the server, and deprecated the cancellation API in #279
- Refactored debug macros to replace all printf usage with
WOLFHSM_CFG_PRINTF-based wrappers in #207 - Expanded static memory DMA offset feature to CMAC, SHA-224, SHA-384, SHA-512, and ML-DSA in #191
- Changed wrap object size argument from input-only to in/out in #241
- Added scan-build static analysis GitHub Action in #195
- Added ECDSA cross-validation test with software implementation in #277