sha256.h File Reference

FIPS 180-4 SHA-256. More...

#include "common/platform/sys/syscall.h"

Go to the source code of this file.

Data Structures
struct	quic_sha256_ctx
	Streaming SHA-256 state. More...

Macros
#define	QUIC_SHA256_DIGEST   32
	digest length in bytes
#define	QUIC_SHA256_BLOCK   64
	internal block length in bytes

Functions
void	quic_sha256_init (quic_sha256_ctx *s)
	Reset s to the initial SHA-256 state.
void	quic_sha256_update (quic_sha256_ctx *s, const u8 *data, usz len)
	Absorb data[0..len) into the running hash.
void	quic_sha256_final (quic_sha256_ctx *s, u8 out[QUIC_SHA256_DIGEST])
	Finish the hash and write the digest.
void	quic_sha256 (const u8 *data, usz len, u8 out[QUIC_SHA256_DIGEST])
	One-shot convenience: digest of data[0..len).

Detailed Description

FIPS 180-4 SHA-256.

Produces a 32-byte digest.

Function Documentation

quic_sha256()

void quic_sha256	(	const u8 *	data,
		usz	len,
		u8	out[QUIC_SHA256_DIGEST] )

One-shot convenience: digest of data[0..len).

Parameters

data	bytes to hash
len	number of bytes at data
out	receives the 32-byte digest

quic_sha256_final()

void quic_sha256_final	(	quic_sha256_ctx *	s,
		u8	out[QUIC_SHA256_DIGEST] )

Finish the hash and write the digest.

Parameters

s	context to finalize (its state is consumed)
out	receives the 32-byte digest

quic_sha256_init()

void quic_sha256_init

(

quic_sha256_ctx *

s

)

Reset s to the initial SHA-256 state.

Parameters

s	context to initialize

quic_sha256_update()

void quic_sha256_update	(	quic_sha256_ctx *	s,
		const u8 *	data,
		usz	len )

Absorb data[0..len) into the running hash.

Parameters

s	context previously initialized
data	bytes to absorb
len	number of bytes at data