The new microcontroller transforms the way ICs are secured.
FREMONT, CA: Maxim Integrated has launched MAX32520 ChipDNA Secure ARM Cortex-M4 Microcontroller. It is a device integrating Physically Unclonable Functionality (PUF) technology for multiple levels of protection in healthcare, other industrial and IT systems. Maxim's PUF circuitry produces cryptographic keys by using the natural randomness of the analog characteristics of MOSFET semiconductor devices. The circuit creates a unique key for the individual device when necessitated, which instantly disappears when it is no longer in use. Endeavours to probe or observe the operation of the ChipDNA improve the characteristics of the underlying circuit. It prevents the discovery of the novel value used by the chip's cryptographic functions.
ChipDNA PUF tech is built to last, and facilitate products to achieve a high level of security even in the face of more than ten year product lifetimes. The MAX32520 uses a tamper-proof PUF key for flash encryption, secure boot for root-of-trust, and serial flash emulation. The physical security of the PUF key doesn't need a battery to monitor sensors and actively destroy a key when under attack. Flash encryption via PUF protects sensitive information with encryption keys that resist advanced and indiscreet physical analysis, providing the strongest IP security available on the market. The microcontroller guards all user data, equipped with TRNG hardware accelerators compliant with SP 800-90B and SP 800-90A for AES-256, ECDSA P-521, and SHA-512. The MAX32520 integrates 2MB Flash, 136KB system RAM + 34KB ECC, 8KB one-time programmable memory (OTP) and 128KB boot ROM. The MAX32520 provides a FIPS/NIST compliant TRNG circuit to generate quality session keys and blinding data.
Maxim Integrated designs, manufactures, and sells high-performance semiconductor products. The company aims to deliver innovative analog and mixed-signal engineering solutions that add value to its products delivered to customers.
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