utils

package

v0.0.0-...-4ec0ad6 Latest Latest Go to latest Published: Jun 2, 2024 License: GPL-3.0 Imports: 3 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/AkewakBiru/AES-Cipher-go

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Documentation ¶

Index ¶

func ByteArrayToUintArray(input []byte) []uint32
func New2DSlice(row int, col int) [][]byte
func UintToByteArray(input [][]uint32) []byte
type GaloisOp
type Gfield
type Padder
- func NewPadder(blockSize uint8) *Padder
- func (p *Padder) Pad(input []byte) ([]byte, error)
- func (p *Padder) Unpad(input []byte) ([]byte, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func ByteArrayToUintArray ¶

func ByteArrayToUintArray(input []byte) []uint32

func New2DSlice ¶

func New2DSlice(row int, col int) [][]byte

func UintToByteArray ¶

func UintToByteArray(input [][]uint32) []byte

Types ¶

type GaloisOp ¶

type GaloisOp interface {
	Add(Gfield, Gfield) Gfield
	Sub(Gfield, Gfield) Gfield
	Mul(Gfield, Gfield) Gfield
	AccMul(Gfield, Gfield) Gfield
	Div(Gfield, Gfield) Gfield
}

type Gfield ¶

type Gfield byte

FIXME: make sure this is right

func (*Gfield) AccMul ¶

func (g *Gfield) AccMul(a Gfield, b Gfield) Gfield

Multiplication in galois field, GF(256)

a . b = (res)mod255

func (*Gfield) Add ¶

func (g *Gfield) Add(a Gfield, b Gfield) Gfield

func (*Gfield) Div ¶

func (g *Gfield) Div(a Gfield, b Gfield) Gfield

Make sure it is right

func (*Gfield) Mul ¶

func (g *Gfield) Mul(a Gfield, b Gfield) Gfield

Algorithm is explained here: https://en.wikipedia.org/wiki/Finite_field_arithmetic#Rijndael's_(AES)_finite_field

func (*Gfield) Sub ¶

func (g *Gfield) Sub(a Gfield, b Gfield) Gfield

type Padder ¶

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

Implementation of PKCS #7 as per RFC 2315

func NewPadder ¶

func NewPadder(blockSize uint8) *Padder

func (*Padder) Pad ¶

func (p *Padder) Pad(input []byte) ([]byte, error)

func (*Padder) Unpad ¶

func (p *Padder) Unpad(input []byte) ([]byte, error)

Source Files ¶

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