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@bigbrett bigbrett released this 17 Feb 03:50
wolfHSM-v1.4.0
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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_CommInfoResponse in #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_ECC in #251
  • Fixed compilation with NO_AES defined and removed extra printfs in #260
  • Fixed wrong #endif placement in wh_client_crypto.c and #include order in nvm_flash_log.h in #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
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