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Use `VALIDATOR_REGISTRY_LIMIT` in `compute_shuffled_index`

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Hsiao-Wei Wang 2019-07-01 10:05:38 +08:00
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specs/core/0_beacon-chain.md
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@ -19,7 +19,7 @@
- [State list lengths](#state-list-lengths)
- [Rewards and penalties](#rewards-and-penalties)
- [Max operations per block](#max-operations-per-block)
- [Signature domains](#signature-domains)
- [Signature domain types](#signature-domain-types)
- [Containers](#containers)
- [Misc dependencies](#misc-dependencies)
- [`Fork`](#fork)
@ -715,7 +715,7 @@ def compute_shuffled_index(index: ValidatorIndex, index_count: uint64, seed: Has
Return the shuffled validator index corresponding to ``seed`` (and ``index_count``).
"""
assert index < index_count
assert index_count <= 2**40
assert index_count <= VALIDATOR_REGISTRY_LIMIT
# Swap or not (https://link.springer.com/content/pdf/10.1007%2F978-3-642-32009-5_1.pdf)
# See the 'generalized domain' algorithm on page 3