tendermint

Commit Graph

Author	SHA1	Message	Date
Dev Ojha	71859f8f3b	common/rand: Remove exponential distribution functions (#1979 ) We were computing these functions incorrectly. I'm not sure what distribution these numbers are, but it isn't the normal exponential distribution. (We're making the probability of getting a number of a particular bitlength equal, but the number in that bitlength thats gets chosen is uniformly chosen) We weren't using these functions anywhere in our codebase, and they had a nomenclature error. (There aren't exponentially distributed integers, instead they would be geometrically distributed)	6 years ago
ValarDragon	a3df06d081	libs/common/rand: Update godocs The godocs fell out of sync with the code here. Additionally we had warning that these randomness functions weren't for cryptographic use on every function. However these warnings are confusing, since there was no implication that they would be secure there, and a single warning on the actual Rand type would suffice. (This is what is done in golang's math/rand godoc) Additionally we indicated that rand.Bytes() was reading OS randomness but in fact that had been changed.	6 years ago
Zach Ramsay	44dad6d70b	Revert "detele everything" This reverts commit `d02c5d1e30`.	6 years ago
Zach Ramsay	d02c5d1e30	detele everything	6 years ago
Ethan Buchman	ae3bf81833	mv tmlibs files to libs dir	6 years ago
Thomas Corbière	74486f7f93	Add Int63n() and RandInt63n().	6 years ago
Thomas Corbière	d66d43d2ea	Add Int31n() and RandInt31n().	6 years ago
Thomas Corbière	3375dac049	add Float64() and RandFloat64().	6 years ago
Jae Kwon	3412587036	Fix race condition in random.go	6 years ago
Jae Kwon	90cd89eab0	Unexpose r.rand (#167 )	6 years ago
Jae Kwon	6d61ca3bb5	New -> NewRand	6 years ago
Jae Kwon	536c27de8e	common/random.go supports seeding and Rand (#121 ) common/random.go supports seeding and Rand Ensure determinism	6 years ago
Ethan Buchman	a25ed5ba1b	cmn: fix race condition in prng	7 years ago
Emmanuel Odeke	8638961f02	common: Rand* warnings about cryptographic unsafety Lesson articulated by @jaekwon on why we need 80 bits of entropy at least before we can think of cryptographic safety. math/rand's seed is a max of 64 bits so can never be cryptographically secure. Also added some benchmarks for RandBytes	7 years ago
Emmanuel Odeke	cdc7988823	common: use genius simplification of tests from @ebuchman Massive test simplication for more reliable tests from @ebuchman	7 years ago
Ethan Buchman	b5f465b4ec	common: use names prng and mrand	7 years ago
Emmanuel Odeke	29471d75cb	common: no more relying on math/rand.DefaultSource Fixes https://github.com/tendermint/tmlibs/issues/99 Updates https://github.com/tendermint/tendermint/issues/973 Removed usages of math/rand.DefaultSource in favour of our own source that's seeded with a completely random source and is safe for use in concurrent in multiple goroutines. Also extend some functionality that the stdlib exposes such as * RandPerm * RandIntn * RandInt31 * RandInt63 Also added an integration test whose purpose is to be run as a consistency check to ensure that our results never repeat hence that our internal PRNG is uniquely seeded each time. This integration test can be triggered by setting environment variable: `TENDERMINT_INTEGRATION_TESTS=true` for example ```shell TENDERMINT_INTEGRATION_TESTS=true go test ```	7 years ago
Ethan Buchman	356657a37b	move all files to common/ to begin repo merge	7 years ago
Jae Kwon	f59fe0c8e0	s/Seed/MixEntropy/g	8 years ago
Jae Kwon	461c3b9785	Remove CRand* from go-common	8 years ago
Jae Kwon	264d2a3eef	Add seed-able cryptographic random.	8 years ago
Jae Kwon	16372365c4	First commit	9 years ago

3 Commits (40342bfa4af115d7f06605225583a990b5771624)