novena_trng

This is an experimental HW system for the Novena platform.

The purpose of the system is to debug, evaluate and qualify the Cryptech True Random Number Generator (TRNG) on the Novena platform with the Xilinx Spartan-6 FPGA. The entropy providers being tested are the noise based entropy provider and the ring oscillator based entropy provider.

The following cores are used in the system: - core/coretest, the test command parser

• core/i2c, the serial interface that connects the system to the Novena CPU.

• core/avalanche_entropy, the entropy provider that is driven by an external noise source.

• core/rosc_entropy, the entropy provider driven by jitter between 32 independently running ring oscillators in the FPGA.

• core/trng, the cryptech random number generator. This core uses the ChaCha stream cipher core in core/chacha, the SHA-512 hash function core in core/sha512

Test SW is available in src/sw