archIeeeTable8 = slicingMakeTable(IEEE)
}

// archUpdateIEEE calculates the checksum of p using vectorizedIEEE.
func archUpdateIEEE(crc uint32, p []byte) uint32 {

	// Check if vector code should be used.  If not aligned, then handle those
	// first up to the aligned bytes.

	if len(p) >= 4*vecMinLen {
		if uint64(uintptr(unsafe.Pointer(&p[0])))&uint64(vecAlignMask) != 0 {

	"math/bits"

	"golang.org/x/crypto/chacha20poly1305"
	"golang.org/x/crypto/hkdf"
)

// testingOnlyGenerateKey is only used during testing, to provide
// a fixed test key to use when checking the RFC 9180 vectors.
var testingOnlyGenerateKey func() (*ecdh.PrivateKey, error)

type hkdfKDF struct {
	hash crypto.Hash
}

func (kdf *hkdfKDF) LabeledExtract(suiteID []byte, salt []byte, label string, inputKey []byte) []byte {

	TypeCondRegBit           // conditional register bit (0-31)
	TypeCondRegField         // conditional register field (0-7)
	TypeFPReg                // floating point register
	TypeVecReg               // vector register
	TypeVecSReg              // VSX register
	TypeVecSpReg             // VSX register pair (even only encoding)
	TypeMMAReg               // MMA register
	TypeSpReg                // special register (depends on Op)

func TestEd25519Vectors(t *testing.T) {
	jsonVectors := downloadEd25519Vectors(t)
	var vectors []struct {
		A, R, S, M string
		Flags      []string
	}
	if err := json.Unmarshal(jsonVectors, &vectors); err != nil {
		t.Fatal(err)
	}
	for i, v := range vectors {
		expectedToVerify := true
		for _, f := range v.Flags {
			switch f {

// license that can be found in the LICENSE file.

//go:build s390x && !math_big_pure_go

package big

import (
	"testing"
)

// Tests whether the non vector routines are working, even when the tests are run on a
// vector-capable machine

func TestFunVVnovec(t *testing.T) {
	if hasVX {
		for _, a := range sumVV {
			arg := a
			testFunVV(t, "addVV_novec", addVV_novec, arg)

		return nil, err
	}
	if len(iv) != ciph.blockSize {
		return nil, errors.New("x509: incorrect IV size")
	}

	// Based on the OpenSSL implementation. The salt is the first 8 bytes
	// of the initialization vector.
	key := ciph.deriveKey(password, iv[:8])
	block, err := ciph.cipherFunc(key)
	if err != nil {
		return nil, err
	}

	if len(b.Bytes)%block.BlockSize() != 0 {

#ifndef GOPPC64_power9
#define ADJUST_FOR_CNTLZW -16
#else
#define ADJUST_FOR_CNTLZW 0
#endif

// Now, find the index of the 16B vector the match was discovered in. If CNTLZW is used
// to determine the offset into the 16B vector, it will overcount by 16. Account for it here.
foundat3:
	SUB	R3,R8,R3
	ADD	$48+ADJUST_FOR_CNTLZW,R3
	BR	vfound
foundat2:
	SUB	R3,R8,R3

/*
 * add library to library list, return added library.
 *	srcref: src file referring to package
 *	objref: object file referring to package
 *	file: object file, e.g., /home/rsc/go/pkg/container/vector.a
 *	pkg: package import path, e.g. container/vector
 *	shlib: path to shared library, or .shlibname file holding path
 *	fingerprint: if not 0, expected fingerprint for import from srcref