Trusted Objects Secure Firmware (TOSF) is a configurable secure firmware solution designed for Secure Element-based hardware implementation.
The Secure Element embedding TOSF is a tamper-resistant companion chip that handles the security functions and security protocols in the IoT device platform, such as:
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Authentication,
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Data transfer integrity and data transfer confidentiality,
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Secure boot and secure firmware update,
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Secure storage,
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Intellectual Property protection,
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Secure LoRaWAN, TLS/DTLS implementation.
TOSF security functions and secure protocols are based on powerful cryptography algorithms fully suited for the IoT applications security: ECC (Elliptic Curve Cryptography) 256-bit key length, AES 128-bit & 256-bit, SHA256 …
TOSF is hardware-agnostic and can be ported on any secure element; it is currently qualified on two secure micro-controller hardware:
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AVNET TO136 Secure Element based on IDEMIA-StarChip platform
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TESIC SE from Tiempo Secure
