wolfTPM Release 1.6 (08/01/2019)

Summary

Improvements for compatibility, chip detection, initialization options and small stack. Adds new wrapper API's for PCR extend. Adds support for using HMAC with existing key.

Details

• Fix for wolfCrypt init/cleanup issue with reference count. (PR #75)
• Fix to restore existing TPM context after calling wolfTPM2_Test. (PR #74)
• Fix to resolve handling of unsupported ECC curves with the TPM module and ECDHE. (PR #69)
• Fix for wolfTPM2_SetCommand to ensure auth is cleared. (PR #69)
• Added --enable-smallstack build options for reducing stack usage. (PR #73)
• Added support for keeping an HMAC key loaded. (PR #72)
• Added API unit test framework. (PR #71)
• Added new wrapper API wolfTPM2_OpenExisting for accessing device that's already started. (PR #71)
• Added new wolfTPM2_ExtendPCR wrapper. (PR #70)
• Added crypto callback flags for FIPS mode and Use Symmetric options. (PR #69)
• Added WOLFTPM_DEBUG_TIMEOUT macro for debugging the timeout checking. (PR #69)
• Added support for ST33 TPM2_SetMode command for disabling power saving. (PR #69)
• Improvements for chip detection, compatibility and startup performance (PR #67)
  • Added support for XPRINTF.
  • Fix printf type warnings.
  • Moved the TPM hardware type build macro detection until after the user_settings.h include.
  • Optimization to initialize Mutex and RNG only when use is required.
  • Added missing stdio.h for printf in examples.
  • Added new API's TPM2_SetActiveCtx, TPM2_ChipStartup, TPM2_SetHalIoCb and TPM2_Init_ex.
  • Allowed way to indicate BOOL type already defined.
  • Added C++ support.
• Added new API wolfTPM2_Test for testing for TPM and optionally returning capabilities. (PR #66)
• Added way to include generated wolftpm/options.h (or customized one) using WOLFTPM_USER_SETTINGS. (PR #63)