When looking to store your cryptographic secrets, it is important to have a good platform to store them on. Even more important is the ease of accessing and using those secrets.

With wolfTPM, we have support for all TPM 2.0 APIs. Additionally we provide the following wrappers:

Key Generation/Loading RSA encrypt/decrypt ECC sign/verify ECDH NV storage Hashing/HMAC AES Sealing/Unsealing Attestation PCR Extend/Quote Secure Root of Trust

Supported Platforms

In wolfTPM we already added support for the following platforms:

Raspberry Pi (Linux) MMIO (Memory mapped IO) MMIO (Memory mapped IO) Atmel ASF Xilinx (Ultrascale+ / Microblaze) QNX Infineon TriCore (TC2xx/TC3xx) Barebox Zephyr Project RTOS U-Boot Bootloader Microchip Harmony (MPLABX)

TPM 2.0 Modules

These TPM (Trusted Platform Module) 2.0 modules are tested and running in the field:

STM ST33TP* SPI/I2C Infineon OPTIGA SLB9670/SLB9672/SLB9673 Microchip ATTPM20 Nations Tech Z32H330TC Nuvoton NPCT650/NPCT750 Nations NS350

PKCS#11 Support

We have our own wolfPKCS11 with support for TPM 2.0 using wolfTPM. We also offer support for PKCS11 to interface to various HSMs like:

Infineon TriCore Aurix Renesas RH850 ST SPC58

Direct Secure Element Access

For direct Secure Element access, we have ports in wolfSSL for:

ST-SAFE ST-SAFE A120 Microchip ATECC508/608 Microchip TA100 NXP SE050 TROPIC01 Secure Element

Hardware Cryptographic Acceleration

Wolfcrypt has support for the following:

NXP Platforms

NXP CAAM (Cryptographic Acceleration and Assurance Module) on i.MX6 (QNX), i.MX8 (QNX/Linux), RT1170 FreeRTOS

Intel & ARM Security

Intel SGX ARM TrustZone CryptoCell 310

Maxim Integrated

MAXQ1065/1080 RNG MAX32665 and MAX32666 TPU (Trust Protection Unit)

STM32 Platform Support

STM32MP135F - Complete hardware acceleration suite with STM32CubeIDE support, HAL support for SHA-2/SHA-3/AES/RNG/ECC optimizations STM32H5 - Advanced performance microcontroller support STM32WBA - Wireless connectivity focused platform STM32G4 - General purpose microcontroller series STM32U575xx - Ultra-low-power microcontroller boards STM32 Cube Expansion Pack - Enhanced development support

Renesas Hardware Acceleration

Renesas TSIP - RSA Public Encrypt/Private Decrypt operations, AES-CTR mode support Renesas SCE - RSA crypto-only support

Infineon Security Solutions

Infineon TriCore (TC2XX/TC3XX) - Hardware security module with TPM support Infineon SLB9672/SLB9673 - Advanced TPM modules with firmware update capabilities Infineon Modus Toolbox - Development environment integration Infineon CyHal I2C/SPI - Hardware abstraction layer support

Development Board Support

Raspberry Pi RP2350 - Latest generation with enhanced RNG optimizations Raspberry Pi RP2040 - Improved support with RNG optimizations SiFive HiFive Unleashed Board - RISC-V development board support

Bootloader and OS Integration

U-Boot Bootloader - Secure boot integration with TPM support Zephyr Project RTOS - Real-time operating system with TPM integration Microchip Harmony (MPLABX) - Complete development ecosystem support

Advanced Features

Memory Mapped I/O (MMIO) TPMs - Direct memory access to TPM modules Pre-provisioned Device Identity Keys - Support for manufacturer-provisioned security credentials Firmware Update Support - Secure firmware update capabilities for supported TPM modules

For more detailed information on our supported hardware take a look at our Hardware Support list.

PSA (Platform Security Architecture)

Wolfcrypt also can make use of PSA (Platform Security Architecture). This includes the following algorithms:

Hashes: SHA-1, SHA-224, SHA-256 AES: AES-ECB, AES-CBC, AES-CTR, AES-GCM, AES-CCM ECDH PK callbacks (P-256) ECDSA PK callbacks (P-256) RNG

wolfBoot Integration

Another product of interest could be wolfBoot, which – as the name suggests – is a bootloader that can use an HSM (Hardware Security Module) for validation and verification. It also provides secure vaults accessible via PKCS#11 API and secured through the ARM TrustZone technology. WolfBoot also supports all of the TPMs and secure elements listed above, as it inherits all of wolfCrypt’s capabilities. WolfBoot can also be combined with wolfTPM to implement measured boot.

If you have questions about any of the above, please contact us at facts@wolfssl.com or call us at +1 425 245 8247.

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