2019-03-01 01:19:05 +00:00
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//! Provides list-shuffling functions matching the Ethereum 2.0 specification.
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//!
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//! See
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2020-06-19 01:18:27 +00:00
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//! [compute_shuffled_index](https://github.com/ethereum/eth2.0-specs/blob/v0.12.1/specs/phase0/beacon-chain.md#compute_shuffled_index)
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2019-03-01 01:19:05 +00:00
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//! for specifications.
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//!
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//! There are two functions exported by this crate:
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//!
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2019-10-29 01:07:12 +00:00
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//! - `compute_shuffled_index`: given a single index, computes the index resulting from a shuffle.
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2019-03-01 01:19:05 +00:00
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//! Runs in less time than it takes to run `shuffle_list`.
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//! - `shuffle_list`: shuffles an entire list in-place. Runs in less time than it takes to run
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2019-10-29 01:07:12 +00:00
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//! `compute_shuffled_index` on each index.
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2019-03-01 01:19:05 +00:00
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//!
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2019-10-29 01:07:12 +00:00
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//! In general, use `compute_shuffled_index` to calculate the shuffling of a small subset of a much
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2019-03-01 01:19:05 +00:00
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//! larger list (~250x larger is a good guide, but solid figures yet to be calculated).
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2019-10-29 01:07:12 +00:00
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mod compute_shuffled_index;
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2019-03-01 01:19:05 +00:00
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mod shuffle_list;
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2019-10-29 01:07:12 +00:00
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pub use compute_shuffled_index::compute_shuffled_index;
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2019-03-01 01:19:05 +00:00
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pub use shuffle_list::shuffle_list;
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2020-02-24 22:00:09 +00:00
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type Hash256 = ethereum_types::H256;
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