package sha256

Import Path
	crypto/internal/fips140/sha256 (on go.dev)

Dependency Relation
	imports 8 packages, and imported by 8 packages

Involved Source Files

	    cast.go
	  d sha256.go
		Package sha256 implements the SHA-224 and SHA-256 hash algorithms as defined
		in FIPS 180-4.

	    sha256block.go
	    sha256block_amd64.go
	    sha256block_amd64.s
Package-Level Type Names (only one, which is exported)

	/* sort exporteds by: alphabet | popularity */
	 type Digest (struct)
		Digest is a SHA-224 or SHA-256 [hash.Hash] implementation.

		Fields (total 5, none are exported)
			/* 5 unexporteds ... *//* 5 unexporteds: */
			h [8]uint32
			is224 bool
				// mark if this digest is SHA-224

			len uint64
			nx int
			x [64]byte
		Methods (total 10, in which 9 are exported)
			(*Digest) AppendBinary(b []byte) ([]byte, error)
			(*Digest) BlockSize() int
			(*Digest) Clone() (hash.Cloner, error)
			(*Digest) MarshalBinary() ([]byte, error)
			(*Digest) Reset()
			(*Digest) Size() int
			(*Digest) Sum(in []byte) []byte
			(*Digest) UnmarshalBinary(b []byte) error
			(*Digest) Write(p []byte) (nn int, err error)
			/* one unexported ... *//* one unexported: */
			(*Digest) checkSum() [32]byte
		Implements (at least 9, in which 7 are exported)
			*Digest : encoding.BinaryAppender
			*Digest : encoding.BinaryMarshaler
			*Digest : encoding.BinaryUnmarshaler
			*Digest : hash.Cloner
			*Digest : hash.Hash
			*Digest : internal/bisect.Writer
			*Digest : io.Writer
			/* 2+ unexporteds ... *//* 2+ unexporteds: */
			*Digest : crypto/internal/fips140/hmac.marshalable
			*Digest : crypto/tls.transcriptHash
		As Outputs Of (at least 2, both are exported)
			func New() *Digest
			func New224() *Digest
		As Inputs Of (at least 4, none are exported)
			/* 4+ unexporteds ... *//* 4+ unexporteds: */
			func block(dig *Digest, p []byte)
			func blockAVX2(dig *Digest, p []byte)
			func blockGeneric(dig *Digest, p []byte)
			func blockSHANI(dig *Digest, p []byte)


Package-Level Functions (total 10, in which 2 are exported)

	 func New() *Digest
		New returns a new Digest computing the SHA-256 hash.

	 func New224() *Digest
		New224 returns a new Digest computing the SHA-224 hash.

	/* 8 unexporteds ... *//* 8 unexporteds: */
	 func block(dig *Digest, p []byte)
	 func blockAVX2(dig *Digest, p []byte)
	 func blockGeneric(dig *Digest, p []byte)
	 func blockSHANI(dig *Digest, p []byte)
	 func consumeUint32(b []byte) ([]byte, uint32)
	 func consumeUint64(b []byte) ([]byte, uint64)
	 func init()
	 func init()
Package-Level Variables (total 3, none are exported)

	/* 3 unexporteds ... *//* 3 unexporteds: */
	  var _K [64]uint32
	  var useAVX2 bool
	  var useSHANI bool
Package-Level Constants (total 25, none are exported)

	/* 25 unexporteds ... *//* 25 unexporteds: */
	const blockSize = 64
		The block size of SHA-256 and SHA-224 in bytes.

	const chunk = 64
	const init0 = 1779033703
	const init0_224 = 3238371032
	const init1 = 3144134277
	const init1_224 = 914150663
	const init2 = 1013904242
	const init2_224 = 812702999
	const init3 = 2773480762
	const init3_224 = 4144912697
	const init4 = 1359893119
	const init4_224 = 4290775857
	const init5 = 2600822924
	const init5_224 = 1750603025
	const init6 = 528734635
	const init6_224 = 1694076839
	const init7 = 1541459225
	const init7_224 = 3204075428
	const magic224 = "sha\x02"
	const magic256 = "sha\x03"
	const marshaledSize int = 108
	const maxAsmIters = 1024
		The maximum number of bytes that can be passed to block(). The limit exists
		because implementations that rely on assembly routines are not preemptible.

	const maxAsmSize = 65536 // 64KiB
	const size = 32
		The size of a SHA-256 checksum in bytes.

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

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)