crypto.sha256.core Module Reference

Data Structures
struct	crypto::sha256::sha256_ctx
	SHA-256 running computation context. More...

Functions
auto	crypto::sha256::sha256_final (sha256_ctx &ctx, std::span< u8, SHA256_DIGEST_SIZE > out) -> std::expected< void, lib::kernel_error >
	Finalize the hash and write the 32-byte digest.
auto	crypto::sha256::sha256_hash (std::span< const u8 > data, std::span< u8, SHA256_DIGEST_SIZE > out) -> std::expected< void, lib::kernel_error >
	One-shot SHA-256: hash data and write the 32-byte digest to out.
auto	crypto::sha256::sha256_init (sha256_ctx &ctx) -> void
	Initialize a SHA-256 context to the FIPS 180-4 initial hash value.
auto	crypto::sha256::sha256_update (sha256_ctx &ctx, std::span< const u8 > data) -> std::expected< void, lib::kernel_error >
	Feed a span of bytes into a running SHA-256 computation.
auto	crypto::sha256::sha256_verify (std::span< const u8 > data, std::span< const u8, SHA256_DIGEST_SIZE > expected) -> std::expected< void, lib::kernel_error >

Variables
u64	bit_count {}
	Total message bits processed so far.
u8	buf [64] {}
	Partial-block accumulation buffer.
u32	buf_len {}
	Number of valid bytes in buf (0..63).
bool	finalized {}
	Set by sha256_final(); guards against double-finalize.
constexpr auto	crypto::sha256::SHA256_DIGEST_SIZE = 32U
	Byte length of a SHA-256 message digest.
u32	state [8] {}
	Current intermediate hash values (H0..H7).

Files
file	crypto/sha256.zcomponent/core.cxxm
file	crypto/sha256.zcomponent/core.cxx