gost28147

package
v0.0.0-...-5a10bb4 Latest Latest
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 Go to latest Published: Apr 21, 2024 License: GPL-3.0 Imports: 4 Imported by: 2

Documentation

Overview

GOST 28147-89 block cipher with ECB, CFB, CTR, MAC modes of operation. RFC 5830.

Index

Constants

View Source 
const (
	BlockSize = 8
	KeySize   = 32
)

Variables

View Source 
var (
	SeqEncrypt = Seq([]uint8{
		0, 1, 2, 3, 4, 5, 6, 7,
		0, 1, 2, 3, 4, 5, 6, 7,
		0, 1, 2, 3, 4, 5, 6, 7,
		7, 6, 5, 4, 3, 2, 1, 0,
	})
	SeqDecrypt = Seq([]uint8{
		0, 1, 2, 3, 4, 5, 6, 7,
		7, 6, 5, 4, 3, 2, 1, 0,
		7, 6, 5, 4, 3, 2, 1, 0,
		7, 6, 5, 4, 3, 2, 1, 0,
	})
)
View Source 
var (
	SboxIdGost2814789TestParamSet = Sbox([8][16]uint8{
		{4, 2, 15, 5, 9, 1, 0, 8, 14, 3, 11, 12, 13, 7, 10, 6},
		{12, 9, 15, 14, 8, 1, 3, 10, 2, 7, 4, 13, 6, 0, 11, 5},
		{13, 8, 14, 12, 7, 3, 9, 10, 1, 5, 2, 4, 6, 15, 0, 11},
		{14, 9, 11, 2, 5, 15, 7, 1, 0, 13, 12, 6, 10, 4, 3, 8},
		{3, 14, 5, 9, 6, 8, 0, 13, 10, 11, 7, 12, 2, 1, 15, 4},
		{8, 15, 6, 11, 1, 9, 12, 5, 13, 3, 7, 10, 0, 14, 2, 4},
		{9, 11, 12, 0, 3, 6, 7, 5, 4, 8, 14, 15, 1, 10, 2, 13},
		{12, 6, 5, 2, 11, 0, 9, 13, 3, 14, 7, 10, 15, 4, 1, 8},
	})
	SboxIdGost2814789CryptoProAParamSet = Sbox([8][16]uint8{
		{9, 6, 3, 2, 8, 11, 1, 7, 10, 4, 14, 15, 12, 0, 13, 5},
		{3, 7, 14, 9, 8, 10, 15, 0, 5, 2, 6, 12, 11, 4, 13, 1},
		{14, 4, 6, 2, 11, 3, 13, 8, 12, 15, 5, 10, 0, 7, 1, 9},
		{14, 7, 10, 12, 13, 1, 3, 9, 0, 2, 11, 4, 15, 8, 5, 6},
		{11, 5, 1, 9, 8, 13, 15, 0, 14, 4, 2, 3, 12, 7, 10, 6},
		{3, 10, 13, 12, 1, 2, 0, 11, 7, 5, 9, 4, 8, 15, 14, 6},
		{1, 13, 2, 9, 7, 10, 6, 0, 8, 12, 4, 5, 15, 3, 11, 14},
		{11, 10, 15, 5, 0, 12, 14, 8, 6, 2, 3, 9, 1, 7, 13, 4},
	})
	SboxIdGost2814789CryptoProBParamSet = Sbox([8][16]uint8{
		{8, 4, 11, 1, 3, 5, 0, 9, 2, 14, 10, 12, 13, 6, 7, 15},
		{0, 1, 2, 10, 4, 13, 5, 12, 9, 7, 3, 15, 11, 8, 6, 14},
		{14, 12, 0, 10, 9, 2, 13, 11, 7, 5, 8, 15, 3, 6, 1, 4},
		{7, 5, 0, 13, 11, 6, 1, 2, 3, 10, 12, 15, 4, 14, 9, 8},
		{2, 7, 12, 15, 9, 5, 10, 11, 1, 4, 0, 13, 6, 8, 14, 3},
		{8, 3, 2, 6, 4, 13, 14, 11, 12, 1, 7, 15, 10, 0, 9, 5},
		{5, 2, 10, 11, 9, 1, 12, 3, 7, 4, 13, 0, 6, 15, 8, 14},
		{0, 4, 11, 14, 8, 3, 7, 1, 10, 2, 9, 6, 15, 13, 5, 12},
	})
	SboxIdGost2814789CryptoProCParamSet = Sbox([8][16]uint8{
		{1, 11, 12, 2, 9, 13, 0, 15, 4, 5, 8, 14, 10, 7, 6, 3},
		{0, 1, 7, 13, 11, 4, 5, 2, 8, 14, 15, 12, 9, 10, 6, 3},
		{8, 2, 5, 0, 4, 9, 15, 10, 3, 7, 12, 13, 6, 14, 1, 11},
		{3, 6, 0, 1, 5, 13, 10, 8, 11, 2, 9, 7, 14, 15, 12, 4},
		{8, 13, 11, 0, 4, 5, 1, 2, 9, 3, 12, 14, 6, 15, 10, 7},
		{12, 9, 11, 1, 8, 14, 2, 4, 7, 3, 6, 5, 10, 0, 15, 13},
		{10, 9, 6, 8, 13, 14, 2, 0, 15, 3, 5, 11, 4, 1, 12, 7},
		{7, 4, 0, 5, 10, 2, 15, 14, 12, 6, 1, 11, 13, 9, 3, 8},
	})
	SboxIdGost2814789CryptoProDParamSet = Sbox([8][16]uint8{
		{15, 12, 2, 10, 6, 4, 5, 0, 7, 9, 14, 13, 1, 11, 8, 3},
		{11, 6, 3, 4, 12, 15, 14, 2, 7, 13, 8, 0, 5, 10, 9, 1},
		{1, 12, 11, 0, 15, 14, 6, 5, 10, 13, 4, 8, 9, 3, 7, 2},
		{1, 5, 14, 12, 10, 7, 0, 13, 6, 2, 11, 4, 9, 3, 15, 8},
		{0, 12, 8, 9, 13, 2, 10, 11, 7, 3, 6, 5, 4, 14, 15, 1},
		{8, 0, 15, 3, 2, 5, 14, 11, 1, 10, 4, 7, 12, 9, 13, 6},
		{3, 0, 6, 15, 1, 14, 9, 2, 13, 8, 12, 4, 11, 10, 5, 7},
		{1, 10, 6, 8, 15, 11, 0, 4, 12, 3, 5, 9, 7, 13, 2, 14},
	})
	SboxIdtc26gost28147paramZ = Sbox([8][16]uint8{
		{12, 4, 6, 2, 10, 5, 11, 9, 14, 8, 13, 7, 0, 3, 15, 1},
		{6, 8, 2, 3, 9, 10, 5, 12, 1, 14, 4, 7, 11, 13, 0, 15},
		{11, 3, 5, 8, 2, 15, 10, 13, 14, 1, 7, 4, 12, 9, 6, 0},
		{12, 8, 2, 1, 13, 4, 15, 6, 7, 0, 10, 5, 3, 14, 9, 11},
		{7, 15, 5, 10, 8, 1, 6, 13, 0, 9, 3, 14, 11, 4, 2, 12},
		{5, 13, 15, 6, 9, 2, 12, 10, 11, 7, 8, 1, 4, 3, 14, 0},
		{8, 14, 2, 5, 6, 9, 1, 12, 15, 4, 11, 0, 13, 10, 3, 7},
		{1, 7, 14, 13, 0, 5, 8, 3, 4, 15, 10, 6, 9, 12, 11, 2},
	})
	SboxIdGostR341194TestParamSet = Sbox([8][16]uint8{
		{4, 10, 9, 2, 13, 8, 0, 14, 6, 11, 1, 12, 7, 15, 5, 3},
		{14, 11, 4, 12, 6, 13, 15, 10, 2, 3, 8, 1, 0, 7, 5, 9},
		{5, 8, 1, 13, 10, 3, 4, 2, 14, 15, 12, 7, 6, 0, 9, 11},
		{7, 13, 10, 1, 0, 8, 9, 15, 14, 4, 6, 12, 11, 2, 5, 3},
		{6, 12, 7, 1, 5, 15, 13, 8, 4, 10, 9, 14, 0, 3, 11, 2},
		{4, 11, 10, 0, 7, 2, 1, 13, 3, 6, 8, 5, 9, 12, 15, 14},
		{13, 11, 4, 1, 3, 15, 5, 9, 0, 10, 14, 7, 6, 8, 2, 12},
		{1, 15, 13, 0, 5, 7, 10, 4, 9, 2, 3, 14, 6, 11, 8, 12},
	})
	SboxAppliedCryptographyParamSet    = SboxIdGostR341194TestParamSet
	SboxIdGostR341194CryptoProParamSet = Sbox([8][16]uint8{
		{10, 4, 5, 6, 8, 1, 3, 7, 13, 12, 14, 0, 9, 2, 11, 15},
		{5, 15, 4, 0, 2, 13, 11, 9, 1, 7, 6, 3, 12, 14, 10, 8},
		{7, 15, 12, 14, 9, 4, 1, 0, 3, 11, 5, 2, 6, 10, 8, 13},
		{4, 10, 7, 12, 0, 15, 2, 8, 14, 1, 6, 5, 13, 11, 9, 3},
		{7, 6, 4, 11, 9, 12, 2, 10, 1, 8, 0, 14, 15, 13, 3, 5},
		{7, 6, 2, 4, 13, 9, 15, 0, 10, 1, 5, 11, 8, 14, 12, 3},
		{13, 14, 4, 1, 7, 0, 5, 10, 3, 12, 8, 15, 6, 2, 9, 11},
		{1, 3, 10, 9, 5, 11, 4, 15, 8, 6, 7, 14, 13, 0, 2, 12},
	})
	SboxEACParamSet = Sbox([8][16]uint8{
		{11, 4, 8, 10, 9, 7, 0, 3, 1, 6, 2, 15, 14, 5, 12, 13},
		{1, 7, 14, 9, 11, 3, 15, 12, 0, 5, 4, 6, 13, 10, 8, 2},
		{7, 3, 1, 9, 2, 4, 13, 15, 8, 10, 12, 6, 5, 0, 11, 14},
		{10, 5, 15, 7, 14, 11, 3, 9, 2, 8, 1, 12, 0, 4, 6, 13},
		{0, 14, 6, 11, 9, 3, 8, 4, 12, 15, 10, 5, 13, 7, 1, 2},
		{9, 2, 11, 12, 0, 4, 5, 6, 3, 15, 13, 8, 1, 7, 14, 10},
		{4, 0, 14, 1, 5, 11, 8, 3, 12, 2, 9, 7, 6, 10, 13, 15},
		{7, 14, 12, 13, 9, 4, 8, 15, 10, 2, 6, 0, 3, 11, 5, 1},
	})
	SboxDefault = &SboxIdGost2814789CryptoProAParamSet
)
View Source 
var (
	SeqMAC = Seq([]uint8{
		0, 1, 2, 3, 4, 5, 6, 7,
		0, 1, 2, 3, 4, 5, 6, 7,
	})
)

Functions

func DiversifyCryptoPro 

func DiversifyCryptoPro(kek, ukm []byte) []byte

func UnwrapCryptoPro 

func UnwrapCryptoPro(kek, data []byte) []byte

func UnwrapGost 

func UnwrapGost(kek, data []byte) []byte

func WrapGost 

func WrapGost(ukm, kek, cek []byte) []byte

Types

type CFBDecrypter 

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

func (*CFBDecrypter) XORKeyStream 

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

type CFBEncrypter 

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

func (*CFBEncrypter) XORKeyStream 

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

type CTR 

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

func (*CTR) XORKeyStream 

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

type Cipher 

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

func NewCipher 

func NewCipher(key []byte, sbox *Sbox) *Cipher

func (*Cipher) BlockSize 

func (c *Cipher) BlockSize() int

func (*Cipher) Decrypt 

func (c *Cipher) Decrypt(dst, src []byte)

Decrypt single block. If provided slices are shorter than the block size, then it will panic.

func (*Cipher) Encrypt 

func (c *Cipher) Encrypt(dst, src []byte)

Encrypt single block. If provided slices are shorter than the block size, then it will panic.

func (*Cipher) NewCFBDecrypter 

func (c *Cipher) NewCFBDecrypter(iv []byte) *CFBDecrypter

func (*Cipher) NewCFBEncrypter 

func (c *Cipher) NewCFBEncrypter(iv []byte) *CFBEncrypter

func (*Cipher) NewCTR 

func (c *Cipher) NewCTR(iv []byte) *CTR

func (*Cipher) NewECBDecrypter 

func (c *Cipher) NewECBDecrypter() *ECBDecrypter

func (*Cipher) NewECBEncrypter 

func (c *Cipher) NewECBEncrypter() *ECBEncrypter

func (*Cipher) NewMAC 

func (c *Cipher) NewMAC(size int, iv []byte) (*MAC, error)

Create MAC with given tag size and initial initialization vector. Size is in bytes and must be between 1 and 8. To be RFC conformant, iv must be the first block of the authenticated data, second and following ones are fed to Write function.

type ECBDecrypter 

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

func (*ECBDecrypter) BlockSize 

func (e *ECBDecrypter) BlockSize() int

func (*ECBDecrypter) CryptBlocks 

func (e *ECBDecrypter) CryptBlocks(dst, src []byte)

type ECBEncrypter 

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

func (*ECBEncrypter) BlockSize 

func (e *ECBEncrypter) BlockSize() int

func (*ECBEncrypter) CryptBlocks 

func (e *ECBEncrypter) CryptBlocks(dst, src []byte)

type MAC 

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

func (*MAC) BlockSize 

func (m *MAC) BlockSize() int

func (*MAC) Reset 

func (m *MAC) Reset()

func (*MAC) Size 

func (m *MAC) Size() int

func (*MAC) Sum 

func (m *MAC) Sum(b []byte) []byte

func (*MAC) Write 

func (m *MAC) Write(b []byte) (int, error)

type Sbox 

type Sbox [8][16]uint8

Sbox is a representation of eight substitution boxes.

type Seq 

type Seq []uint8

Seq contains iteration numbers used in the encryption function itself. For example 28147 encryption and decryption process differs only with this sequence.

Source Files

View all Source files

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