"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)

package tls

import (
	"bytes"
	"crypto/internal/mlkem768"
	"encoding/hex"
	"hash"
	"strings"
	"testing"
	"unicode"
)

// This file contains tests derived from draft-ietf-tls-tls13-vectors-07.

func parseVector(v string) []byte {
	v = strings.Map(func(c rune) rune {
		if unicode.IsSpace(c) {
			return -1
		}
		return c
	}, v)
	parts := strings.Split(v, ":")
	v = parts[len(parts)-1]

	CBitFieldMaskBit63 = 0x8000000000000000
)

type SockaddrStorage struct {
	Family uint16
	Data   [118]byte
	_      uint64
}

type HDGeometry struct {
	Heads     uint8
	Sectors   uint8
	Cylinders uint16
	Start     uint64
}

type Statfs_t struct {
	Type    int64
	Bsize   int64
	Blocks  uint64
	Bfree   uint64
	Bavail  uint64
	Files   uint64
	Ffree   uint64

	CBitFieldMaskBit62 = 0x2
	CBitFieldMaskBit63 = 0x1
)

type SockaddrStorage struct {
	Family uint16
	Data   [122]byte
	_      uint32
}

type HDGeometry struct {
	Heads     uint8
	Sectors   uint8
	Cylinders uint16
	Start     uint32
}

type Statfs_t struct {
	Type    int32
	Bsize   int32
	Frsize  int32
	_       [4]byte
	Blocks  uint64
	Bfree   uint64
	Files   uint64

	auxvp := (*[1 << 28]uintptr)(add(unsafe.Pointer(argv), uintptr(n)*goarch.PtrSize))
	pairs := sysauxv(auxvp[:])
	auxv = auxvp[: pairs*2 : pairs*2]
}

const (
	_AT_NULL     = 0  // Terminates the vector
	_AT_PAGESZ   = 6  // Page size in bytes
	_AT_PLATFORM = 15 // string identifying platform
	_AT_TIMEKEEP = 22 // Pointer to timehands.
	_AT_HWCAP    = 25 // CPU feature flags
	_AT_HWCAP2   = 26 // CPU feature flags 2

		fn:         fn,
		f:          f,
		vars:       vars,
		idx:        idx,
		stkptrsize: stkptrsize,
	}

	// Significant sources of allocation are kept in the ssa.Cache
	// and reused. Surprisingly, the bit vectors themselves aren't
	// a major source of allocation, but the liveness maps are.
	if lc, _ := f.Cache.Liveness.(*livenessFuncCache); lc == nil {
		// Prep the cache so liveness can fill it later.

// is used.
var karatsubaThreshold = 40 // computed by calibrate_test.go

// karatsuba multiplies x and y and leaves the result in z.
// Both x and y must have the same length n and n must be a
// power of 2. The result vector z must have len(z) >= 6*n.
// The (non-normalized) result is placed in z[0 : 2*n].
func karatsuba(z, x, y nat) {
	n := len(y)

	// Switch to basic multiplication if numbers are odd or small.

	0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
	0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x24, 0x24,
	0x2f, 0x23, 0x32, 0x2f, 0x27, 0x2f, 0x21,
}

// regionInclusionBits is an array of bit vectors where every vector represents
// a set of region groupings.  These sets are used to compute the distance
// between two regions for the purpose of language matching.
// Size: 584 bytes, 73 elements

	EM_XIMO16        Machine = 170 /* New Japan Radio (NJR) 16-bit DSP Processor */
	EM_MANIK         Machine = 171 /* M2000 Reconfigurable RISC Microprocessor */
	EM_CRAYNV2       Machine = 172 /* Cray Inc. NV2 vector architecture */
	EM_RX            Machine = 173 /* Renesas RX family */
	EM_METAG         Machine = 174 /* Imagination Technologies META processor architecture */