README.md


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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