Tuesday, November 5, 2024

Alif Semiconductor’s Innovative and Novel Architecture Sets the Bar for Security to New Heights in Deployed Edge Products

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Alif Semiconductor, supplier of the most power efficient Edge AI-enabled secure MCUs and fusion processors in the market, announced its advanced on-chip security solution. Alif Semiconductor’s unique security architecture brings together a combination of innovative technologies which include an integrated Secure Enclave with its own resources and a highly configurable secure firewall structure, multiple general purpose and neural processing cores with secure communication between them, and in-factory creation of unique device key pairs within every device. Alif leverages all these elements to secure the next wave of deployed Edge devices that are powered by advanced processing including Artificial Intelligence and Machine Learning (AI/ML).

Bullet-Proof Security Baseline in Ensemble Devices

The Secure Enclave, standard in every device of the Ensemble family, is a dedicated isolated subsystem for management of vital security functions like secure key management and storage, secure boot with an immutable Root-of-Trust, attestation at run-time using certificates, hardware cryptographic services, secure debugging, read-out protection, secure firmware updates, power management, and complete lifecycle management.

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A solid foundation of trust is essential to make security functions effective. During manufacturing, the Secure Enclave on every Ensemble device establishes the required trust foundation by creating and storing unique device key pairs internally which can be used to identify and authenticate each device, eliminating the need for external equipment such as a Hardware Security Module (HSM) to inject the keys. The result – every device and every customer can establish a chain of trust from the network to the device, by design, without introducing any complex, risky, or costly third-party dependencies to inject secrets, even after end-products are deployed in the field.

Going Beyond the Baseline

The Alif Ensemble family scales from single core to a new class of multi-core devices, that combine up to two Cortex-M55 MCU cores, up to two Cortex-A32 microprocessor cores capable of running high-level operating systems, and up to two Ethos-U55 microNPUs for AI/ML acceleration.

For each CPU core, developers may allocate any portion of memory, or any individual peripheral, either shared or separated, using the Secure Enclave because of its unique firewall mechanism. Not only does this grant great flexibility to the developer but also infuses a high level of system security with durable separation of resources between multiple processing subsystems as well as secure and non-secure operations. This extends security well beyond the capabilities of traditional Arm TrustZone that is optimized for single-core operation.

SOURCE: PRNewswire

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