fastmm::net::HmacSha256Key Class Reference

HMAC-SHA256 with the key schedule precomputed (see the header comment). More...

#include <fastmm/net/crypto.hpp>

Public Member Functions
	HmacSha256Key () noexcept
	HmacSha256Key (std::string_view key) noexcept
void	sign (std::string_view data, std::span< std::uint8_t, kSha256Size > out) const noexcept
HexSha256	sign_hex (std::string_view data) const noexcept

Static Public Attributes
static constexpr std::size_t	kCtxBytes = 128
	Opaque storage for one OpenSSL SHA256_CTX (112 bytes; checked in crypto.cpp).

Detailed Description

HMAC-SHA256 with the key schedule precomputed (see the header comment).

Copyable; a default-constructed key signs with the empty key.

Constructor & Destructor Documentation

HmacSha256Key() [1/2]

fastmm::net::HmacSha256Key::HmacSha256Key ( )

inlinenoexcept

HmacSha256Key() [2/2]

fastmm::net::HmacSha256Key::HmacSha256Key ( std::string_view  key )

explicitnoexcept

Member Function Documentation

sign()

void fastmm::net::HmacSha256Key::sign ( std::string_view  data, std::span< std::uint8_t, kSha256Size >  out  ) const

noexcept

sign_hex()

HexSha256 fastmm::net::HmacSha256Key::sign_hex ( std::string_view  data ) const

noexcept

Member Data Documentation

kCtxBytes

constexpr std::size_t fastmm::net::HmacSha256Key::kCtxBytes = 128

staticconstexpr

Opaque storage for one OpenSSL SHA256_CTX (112 bytes; checked in crypto.cpp).