Personalizing Your Random Numbers
summary
Claim: it's practical to personalize RNG entropy by ingesting real-world sources and replacing Java's next() with that stream. Implementation: a Spring Boot service runs external suppliers (camera, dump1090, MP4 decoder, RTL-SDR FM reader) that write bytes into a circular buffer (252k size, chunked reads, per-thread head pointers). Demo starts an RTLFM process, fills the buffer quickly, and Java's Random subclass returns ints from those bytes; output can be fed to NIST tests. Hotbits ended, Cloudflare LavaRand is a precedent.
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chapters (8)
- 0:00Introduction and speaker intro
- 2:00What is randomness and entropy
- 5:31Pseudo random number generators
- 10:28Real-world entropy sources
- 12:15Custom random number application
- 15:24Java’s Random class and override
- 20:28Live demo and supplier start
- 22:37Final thoughts on randomness importance
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