Suhas Daftuar 1d4cfa4272 Add function to validate difficulty changes ...

The rule against difficulty adjustments changing by more than a factor of 4 can
be helpful for anti-DoS measures in contexts where we lack a full headers
chain, so expose this functionality separately and in the narrow case where we
only know the height, new value, and old value.

Includes fuzz test by Martin Zumsande.

2022-08-23 11:34:10 -04:00

8.5 KiB

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