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Differential D4387

Use FRC::randbytes instead of reading >32 bytes from RNG
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Authored by nakihito on Nov 5 2019, 22:40.

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deadalnix
Fabien
jasonbcox
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Restricted Owners Package(Owns No Changed Paths)
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rSTAGINGdb22ce1e682d: Use FRC::randbytes instead of reading >32 bytes from RNG
rABCdb22ce1e682d: Use FRC::randbytes instead of reading >32 bytes from RNG
Summary

There was only one place in the codebase where we're directly reading >32 bytes from
the RNG. One possibility would be to make the built-in RNG support large reads, but
using FastRandomContext lets us reuse code better.

There is no change in behavior here, because the FastRandomContext constructor
uses GetRandBytes internally.

Partial backport of Core PR14955
https://github.com/bitcoin/bitcoin/pull/14955/commits/6a57ca91da23c6a5d91399ffc7fc09a99b6d4c76

Test Plan
make check

Diff Detail

Repository
rABC Bitcoin ABC
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Tests Not Applicable

Event Timeline

nakihito created this revision.Nov 5 2019, 22:40
Owners added a reviewer: Restricted Owners Package.Nov 5 2019, 22:40
Herald added a reviewer: Restricted Project. · View Herald TranscriptNov 5 2019, 22:40
teamcity added a comment.Nov 5 2019, 22:40

Build Bitcoin-ABC / Diffs / Diff Testing started.

nakihito added a child revision: D4389: Don't log RandAddSeedPerfmon details.Nov 5 2019, 22:42
jasonbcox accepted this revision.Nov 5 2019, 22:50
This revision is now accepted and ready to land.Nov 5 2019, 22:50
teamcity added a comment.Nov 5 2019, 22:51

Build Bitcoin-ABC / Diffs / Diff Testing passed.

Harbormaster completed remote builds in B7997: Diff 13937.Nov 5 2019, 22:51
Closed by commit rABCdb22ce1e682d: Use FRC::randbytes instead of reading >32 bytes from RNG (authored by Pieter Wuille <pieter.wuille@gmail.com>, committed by nakihito). · Explain WhyNov 8 2019, 15:54
This revision was automatically updated to reflect the committed changes.
Nico Guiton <nico@bitframe.org> added a commit: rABCdb22ce1e682d: Use FRC::randbytes instead of reading >32 bytes from RNG.
nakihito added a commit: rSTAGINGdb22ce1e682d: Use FRC::randbytes instead of reading >32 bytes from RNG.Apr 7 2020, 21:37

Revision Contents
Changeset List

PathSize
src/
qt/
test/
7 lines

Diff 13986

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src/qt/test/paymentservertests.cpp

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