purify::TaggedHash Class Reference

Reusable BIP340-style tagged SHA-256 helper. More...

#include <curve.hpp>

Public Member Functions
	TaggedHash (std::string_view tag)
std::array< unsigned char, 32 >	digest (std::span< const unsigned char > data) const
template<std::size_t Segments>
std::array< unsigned char, 32 >	digest_many (const std::array< std::span< const unsigned char >, Segments > &segments) const

Detailed Description

The digest is computed as SHA256(SHA256(tag) || SHA256(tag) || data...).

Definition at line 111 of file curve.hpp.

Constructor & Destructor Documentation

TaggedHash()

purify::TaggedHash::TaggedHash ( std::string_view  tag )

inlineexplicit

Definition at line 113 of file curve.hpp.

References purify_sha256().

Member Function Documentation

digest()

std::array< unsigned char, 32 > purify::TaggedHash::digest ( std::span< const unsigned char >  data ) const

inline

Definition at line 117 of file curve.hpp.

Referenced by purify::NativeBulletproofCircuitTemplate::integrity_digest().

digest_many()

template<std::size_t Segments>

std::array< unsigned char, 32 > purify::TaggedHash::digest_many ( const std::array< std::span< const unsigned char >, Segments > &  segments ) const

inline

Definition at line 123 of file curve.hpp.

References purify_sha256_many().

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

• include/purify/curve.hpp