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content/notes/05-crypography.md
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@ -84,4 +84,19 @@ computers have the same problem: they are deterministic
entropy pool entropy pool
- modern OSs implement an entropy pool that processes can draw on when the need random data - modern OSs implement an entropy pool that processes can draw on when the need random data
- some systems provide blocking and non-blocking random sourc - some systems provide blocking and non-blocking random source devices
- blocking: will stop when entropy is exhausted
how to prove randomness
- cannot prove
- but can check for uniformity, bias, distribution etc.
- difficult with small samples
- can identify data that is unlikely to be random
- (rngtext, diehard, dieharder etc)
# Future
- arms race
- parallell co-ordination
- quantum copmuting/cryptography could radically change the field
- already being developed and investigated
- security practitioners are are already developing things for quantum computing.