Data structure to cache SHA256 midstates for the ECDSA sighash calculations (bare, P2SH) More...

Public Member Functions
bool	Load (const SigHashType &hash_type, const CScript &script_code, HashWriter &writer) const noexcept
	Load into writer the SHA256 midstate if found in this cache. More...

void	Store (const SigHashType &hash_type, const CScript &script_code, const HashWriter &writer) noexcept
	Store into this cache object the provided SHA256 midstate. More...

Private Member Functions
int	CacheIndex (const SigHashType &hash_type) const noexcept
	Given a hash_type, find which of the 12 cache entries is to be used. More...

Private Attributes
std::optional< std::pair< CScript, HashWriter > >	m_cache_entries [12]
	For each sighash mode: [0] ALL [1] NONE [2] SINGLE [3] ALL\|ANYONE [4] NONE\|ANYONE [5] SINGLE\|ANYONE [6] ALL\|FORKID [7] NONE\|FORKID [8] SINGLE\|FORKID [9] ALL\|ANYONE\|FORKID [10] NONE\|ANYONE\|FORKID [11] SINGLE\|ANYONE\|FORKID optionally store a scriptCode which the hash is for, plus a midstate for the SHA256 computation just before adding the hash_type itself. More...

Detailed Description

Data structure to cache SHA256 midstates for the ECDSA sighash calculations (bare, P2SH)

Definition at line 33 of file interpreter.h.

Member Function Documentation

int SigHashCache::CacheIndex ( const SigHashType & hash_type ) const

privatenoexcept

Given a hash_type, find which of the 12 cache entries is to be used.

Definition at line 1535 of file interpreter.cpp.

noexcept

Load into writer the SHA256 midstate if found in this cache.

Definition at line 1541 of file interpreter.cpp.

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noexcept

Store into this cache object the provided SHA256 midstate.

Definition at line 1552 of file interpreter.cpp.

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std::optional<std::pair<CScript, HashWriter> > SigHashCache::m_cache_entries[12]

private

Definition at line 51 of file interpreter.h.

The documentation for this class was generated from the following files: