Case Study: Flex Logix achieves next-level eFPGA security with Synopsys SRAM PUF IP

Flex Logix Enhancing eFPGA Security

Flex Logix’s EFLX eFPGA delivers area-efficient, high‑utilization FPGA fabric (using its XFLX interconnect) for SoCs across markets like 5G, automotive, cloud and defense. As more SoCs embed reconfigurable logic, securing high‑risk assets and eFPGA bitstreams against tampering, cloning and supply‑chain attacks became a critical challenge—one that conventional stored keys and protections struggle to address.

Flex Logix paired its eFPGA with Synopsys’ SRAM PUF IP to generate a device‑unique, never‑stored cryptographic root key used with AES‑GCM to encrypt and authenticate eFPGA bitstreams. The result is unclonable, invisible keying that prevents reading, altering or copying bitstreams, integrates into standard SoC flows with no extra secure storage hardware, and preserves the area‑ and cost‑efficiencies of Flex Logix’s eFPGA while substantially raising security.

Flex Logix

Andy Jaros

VP IP Sales, Marketing & Solutions Architecture