SignatureCache Class Reference

Valid signature cache, to avoid doing expensive ECDSA signature checking twice for every transaction (once when accepted into memory pool, and again when accepted into the block chain). More...

#include <sigcache.h>

Collaboration diagram for SignatureCache:

Public Member Functions
	SignatureCache (size_t max_size_bytes)
	SignatureCache (const SignatureCache &)=delete
SignatureCache &	operator= (const SignatureCache &)=delete
void	ComputeEntryECDSA (uint256 &entry, const uint256 &hash, const std::vector< unsigned char > &vchSig, const CPubKey &pubkey) const
void	ComputeEntrySchnorr (uint256 &entry, const uint256 &hash, std::span< const unsigned char > sig, const XOnlyPubKey &pubkey) const
bool	Get (const uint256 &entry, bool erase)
void	Set (const uint256 &entry)

Private Types
typedef CuckooCache::cache< uint256, SignatureCacheHasher >	map_type

Private Attributes
CSHA256	m_salted_hasher_ecdsa
	Entries are SHA256(nonce || 'E' or 'S' || 31 zero bytes || signature hash || public key || signature):
CSHA256	m_salted_hasher_schnorr
map_type	setValid
std::shared_mutex	cs_sigcache

Detailed Description

Valid signature cache, to avoid doing expensive ECDSA signature checking twice for every transaction (once when accepted into memory pool, and again when accepted into the block chain).

Definition at line 38 of file sigcache.h.

Member Typedef Documentation

map_type

typedef CuckooCache::cache<uint256, SignatureCacheHasher> SignatureCache::map_type

private

Definition at line 44 of file sigcache.h.

Constructor & Destructor Documentation

SignatureCache() [1/2]

SignatureCache::SignatureCache

(

size_t

max_size_bytes

)

Definition at line 20 of file sigcache.cpp.

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SignatureCache() [2/2]

SignatureCache::SignatureCache ( const SignatureCache & )

delete

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Member Function Documentation

ComputeEntryECDSA()

void SignatureCache::ComputeEntryECDSA	(	uint256 &	entry,
		const uint256 &	hash,
		const std::vector< unsigned char > &	vchSig,
		const CPubKey &	pubkey ) const

Definition at line 39 of file sigcache.cpp.

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ComputeEntrySchnorr()

void SignatureCache::ComputeEntrySchnorr	(	uint256 &	entry,
		const uint256 &	hash,
		std::span< const unsigned char >	sig,
		const XOnlyPubKey &	pubkey ) const

Definition at line 45 of file sigcache.cpp.

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Get()

bool SignatureCache::Get	(	const uint256 &	entry,
		bool	erase )

Definition at line 51 of file sigcache.cpp.

operator=()

SignatureCache & SignatureCache::operator= ( const SignatureCache & )

delete

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Set()

void SignatureCache::Set

(

const uint256 &

entry

)

Definition at line 57 of file sigcache.cpp.

Member Data Documentation

cs_sigcache

std::shared_mutex SignatureCache::cs_sigcache

private

Definition at line 46 of file sigcache.h.

m_salted_hasher_ecdsa

CSHA256 SignatureCache::m_salted_hasher_ecdsa

private

Entries are SHA256(nonce || 'E' or 'S' || 31 zero bytes || signature hash || public key || signature):

Definition at line 42 of file sigcache.h.

m_salted_hasher_schnorr

CSHA256 SignatureCache::m_salted_hasher_schnorr

private

Definition at line 43 of file sigcache.h.

setValid

map_type SignatureCache::setValid

private

Definition at line 45 of file sigcache.h.

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

• src/script/sigcache.h
• src/script/sigcache.cpp