746 TRNG
746 : TRNG
- Author: Muhammad Bilal
- Description: Generate Raw and Hashed Random Numbers
- GitHub repository
- Open in 3D viewer
- Clock: 50000000 Hz
How it works
This True Random Number Generator (TRNG) operates by leveraging a noise source sampled by a digital circuit. The sampled data conditioning using SHA-256 to ensure cryptographic-quality randomness. A state machine controls data collection, processing, and output transmission via UART. The TRNG supports two modes: raw entropy output for analysis and hashed output for secure applications. Built-in health tests, such as the Repetition Count Test, verify entropy quality.
How to test
- Connect a UART terminal to receive random number outputs.
- Select between raw entropy mode or hashed output mode via control signal. (default is 0 for Hashed output)
- Monitor the output stream for randomness analysis or cryptographic use.
- Run statistical tests to validate entropy quality. (Visit github @ sp 800-90b)
External hardware
- ZCU102 FPGA Board
- UART-to-USB Adapter (for serial communication)
- Oscilloscope (for debugging noise source if needed)
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | TRNG_Enable | failure | |
| 1 | ctrl_mode | hash_rdy | |
| 2 | UART_Tx | ||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |