//go:build fips
// +build fips

package sha256

import (
	fipssha256 "crypto/sha256"
	"hash"
)

// New returns a new hash.Hash computing the SHA256 checksum.
// The SHA256 implementation is FIPS 140-2 compliant when the
// boringcrypto branch of Go is used.
// Ref: https://github.com/golang/go/tree/dev.boringcrypto
func New() hash.Hash { return fipssha256.New() }

// Sum256 returns the SHA256 checksum of the data.

// implementations compliant with FIPS 140.
//
// FIPS 140 [1] is a US standard for data processing that specifies
// requirements for cryptographic modules. Software that is "FIPS 140
// compliant" must use approved cryptographic primitives only and that
// are implemented by a FIPS 140 certified cryptographic module.
//
// So, FIPS 140 requires that a certified implementation of e.g. AES

// +build !fips

package sha256

import (
	"hash"

	nofipssha256 "github.com/minio/sha256-simd"
)

// New returns a new hash.Hash computing the SHA256 checksum.
// The SHA256 implementation is not FIPS 140-2 compliant.
func New() hash.Hash { return nofipssha256.New() }

// Sum256 returns the SHA256 checksum of the data.
func Sum256(data []byte) [nofipssha256.Size]byte { return nofipssha256.Sum256(data) }

		}
	}
}

var readerTests = []struct { // Reference values computed by: echo <content> | md5sum
	Content string
	ETag    ETag
}{
	{
		Content: "", ETag: ETag{212, 29, 140, 217, 143, 0, 178, 4, 233, 128, 9, 152, 236, 248, 66, 126},
	},
	{
		Content: " ", ETag: ETag{114, 21, 238, 156, 125, 157, 194, 41, 210, 146, 26, 64, 232, 153, 236, 95},
	},
	{

	_ = x[ErrInvalidEncryptionParameters-136]
	_ = x[ErrInvalidEncryptionParametersSSEC-137]
	_ = x[ErrInvalidSSECustomerAlgorithm-138]
	_ = x[ErrInvalidSSECustomerKey-139]
	_ = x[ErrMissingSSECustomerKey-140]
	_ = x[ErrMissingSSECustomerKeyMD5-141]
	_ = x[ErrSSECustomerKeyMD5Mismatch-142]
	_ = x[ErrInvalidSSECustomerParameters-143]
	_ = x[ErrIncompatibleEncryptionMethod-144]
	_ = x[ErrKMSNotConfigured-145]

func stack132()  { var buf [132]byte; use(buf[:]); C.callGoStackCheck() }
func stack136()  { var buf [136]byte; use(buf[:]); C.callGoStackCheck() }
func stack140()  { var buf [140]byte; use(buf[:]); C.callGoStackCheck() }
func stack144()  { var buf [144]byte; use(buf[:]); C.callGoStackCheck() }
func stack148()  { var buf [148]byte; use(buf[:]); C.callGoStackCheck() }