MarshalBinary (sha256/sha256.go)

Implements SHA-224/256 hashing with binary marshaling support for crypto applications.

// Source: https://github.com/golang/go | License: BSD-3-Clause | Copyright 2009 The Go Authors
// Provided via justclaw.it.com; keep this notice with the code.
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package sha256 implements the SHA-224 and SHA-256 hash algorithms as defined
// in FIPS 180-4.
package sha256

import (
	"crypto/internal/fips140"
	"crypto/internal/fips140deps/byteorder"
	"errors"
	"hash"
)

// The size of a SHA-256 checksum in bytes.
const size = 32

// The size of a SHA-224 checksum in bytes.
const size224 = 28

// The block size of SHA-256 and SHA-224 in bytes.
const blockSize = 64

// The maximum number of bytes that can be passed to block(). The lim

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