zuc

package
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Published: Aug 13, 2022 License: MIT Imports: 7 Imported by: 0

README

ZUC original performance:

goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/zuc
cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
BenchmarkEncrypt1K-6   	   30052	     39131 ns/op	  26.04 MB/s
BenchmarkEncrypt8K-6   	    3853	    310722 ns/op	  26.35 MB/s

Performance after delay mod & lfsr array copy:

goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/zuc
cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
BenchmarkEncrypt1K-6   	   41754	     26916 ns/op	  37.86 MB/s
BenchmarkEncrypt8K-6   	    5290	    215252 ns/op	  38.03 MB/s

Performance after delay mod & lfsr array copy & merge sbox0/sbox1 (sbox size from 0.5k to 128k, so i do not commit it):

goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/zuc
cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
BenchmarkEncrypt1K-6   	   49195	     23710 ns/op	  42.98 MB/s
BenchmarkEncrypt8K-6   	    6000	    191255 ns/op	  42.81 MB/s
func (s *zucState32) f32(x0, x1, x2 uint32) uint32 {
	w := s.r1 ^ x0 + s.r2
	w1 := s.r1 + x1
	w2 := s.r2 ^ x2
	u := l1((w1 << 16) | (w2 >> 16))
	v := l2((w2 << 16) | (w1 >> 16))
	s.r1 = uint32(bigSbox[u>>16])<<16 | uint32(bigSbox[u&0xFFFF])
	s.r2 = uint32(bigSbox[v>>16])<<16 | uint32(bigSbox[v&0xFFFF])
	return w
}

// bigSbox is generated by 
	for i := 0; i < 256; i++ {
		for j := 0; j < 256; j++ {
			if (j > 0 || i > 0) && j%16 == 0 {
				fmt.Println()
			}
			fmt.Printf("0x%04x,", uint16(sbox0[i])<<8|uint16(sbox1[j]))
		}
	}
	fmt.Println()

EEA Performance with AMD64 SIMD & AESNI:

goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/zuc
cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
BenchmarkEncrypt1K-6   	  409755	      2802 ns/op	 363.62 MB/s
BenchmarkEncrypt8K-6   	   54120	     22413 ns/op	 365.28 MB/s

EIA Performance with AMD64 SIMD & AESNI & CLMUL:

goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/zuc
cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
BenchmarkHash1K-6   	  317750	      3833 ns/op	 267.13 MB/s
BenchmarkHash8K-6   	   40460	     28921 ns/op	 283.26 MB/s
BenchmarkHash1K_Tag64-6   	  302163	      3979 ns/op	 257.34 MB/s
BenchmarkHash8K_Tag64-6   	   39210	     30859 ns/op	 265.46 MB/s
BenchmarkHash1K_Tag128-6   	  279069	      4134 ns/op	 247.70 MB/s
BenchmarkHash8K_Tag128-6   	   38238	     31395 ns/op	 260.93 MB/s

Documentation

Overview

Package zuc handle shangmi zuc stream cipher.

Index

Constants

View Source
const RoundWords = 32

Variables

This section is empty.

Functions

func NewCipher

func NewCipher(key, iv []byte) (cipher.Stream, error)

NewCipher create a stream cipher based on key and iv aguments.

func NewEEACipher

func NewEEACipher(key []byte, count, bearer, direction uint32) (cipher.Stream, error)

NewEEACipher create a stream cipher based on key, count, bearer and direction arguments according specification.

Types

type ZUC128Mac

type ZUC128Mac struct {
	// contains filtered or unexported fields
}

func NewEIAHash

func NewEIAHash(key []byte, count, bearer, direction uint32) (*ZUC128Mac, error)

NewEIAHash create hash for zuc-128 eia, with arguments key, count, bearer and direction

func NewHash

func NewHash(key, iv []byte) (*ZUC128Mac, error)

NewHash create hash for zuc-128 eia, with arguments key and iv. Both key/iv size are 16 in bytes.

func (*ZUC128Mac) BlockSize

func (m *ZUC128Mac) BlockSize() int

func (*ZUC128Mac) Finish

func (m *ZUC128Mac) Finish(p []byte, nbits int) []byte

Finish this function hash nbits data in p and return mac value In general, we will use byte level function, this is just for test/verify.

func (*ZUC128Mac) Reset

func (m *ZUC128Mac) Reset()

Reset resets the Hash to its initial state.

func (*ZUC128Mac) Size

func (m *ZUC128Mac) Size() int

func (*ZUC128Mac) Sum

func (m *ZUC128Mac) Sum(in []byte) []byte

Sum appends the current hash to in and returns the resulting slice. It does not change the underlying hash state.

func (*ZUC128Mac) Write

func (m *ZUC128Mac) Write(p []byte) (nn int, err error)

func (*ZUC128Mac) XORKeyStream

func (c *ZUC128Mac) XORKeyStream(dst, src []byte)

type ZUC256Mac

type ZUC256Mac struct {
	// contains filtered or unexported fields
}

func NewHash256

func NewHash256(key, iv []byte, tagSize int) (*ZUC256Mac, error)

NewHash256 create hash for zuc-256 eia, with arguments key, iv and tagSize. Key size is 32 in bytes, iv size is 23 in bytes, tagSize supports 4/8/16 in bytes. The larger the tag size, the worse the performance.

func (*ZUC256Mac) BlockSize

func (m *ZUC256Mac) BlockSize() int

func (*ZUC256Mac) Finish

func (m *ZUC256Mac) Finish(p []byte, nbits int) []byte

Finish this function hash nbits data in p and return mac value In general, we will use byte level function, this is just for test/verify.

func (*ZUC256Mac) Reset

func (m *ZUC256Mac) Reset()

Reset resets the Hash to its initial state.

func (*ZUC256Mac) Size

func (m *ZUC256Mac) Size() int

func (*ZUC256Mac) Sum

func (m *ZUC256Mac) Sum(in []byte) []byte

Sum appends the current hash to in and returns the resulting slice. It does not change the underlying hash state.

func (*ZUC256Mac) Write

func (m *ZUC256Mac) Write(p []byte) (nn int, err error)

func (*ZUC256Mac) XORKeyStream

func (c *ZUC256Mac) XORKeyStream(dst, src []byte)

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