gocrypt

package module
v0.0.0-...-9f657d6 Latest Latest
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 Go to latest Published: Jul 29, 2020 License: GPL-3.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BigEEA 

func BigEEA(ri_, rj_ *big.Int) (*big.Int, *big.Int, *big.Int)

func BinaryPolynomialEEA 

func BinaryPolynomialEEA(ri, rj *BinaryPolynomial) (*BinaryPolynomial, *BinaryPolynomial, *BinaryPolynomial)

func CodeBlock 

func CodeBlock(s string) string

func EEA 

func EEA(ri, rj int) (int, int, int)

func FermatTest 

func FermatTest(p *big.Int, s int, rnd *rand.Rand) bool

func PolynomialEEA 

func PolynomialEEA(ri, rj *Polynomial) (*Polynomial, *Polynomial, *Polynomial)

Types

type AESCipher 

type AESCipher struct {
	BlockLength int // block length in bytes
	Keys        [][]byte
}

func NewAESCipher 

func NewAESCipher(key []byte) (*AESCipher, error)

func (AESCipher) Decrypt 

func (cipher AESCipher) Decrypt(input, output []byte) error

func (AESCipher) Encrypt 

func (cipher AESCipher) Encrypt(input, output []byte) error

func (*AESCipher) GenerateSubkeys 

func (cipher *AESCipher) GenerateSubkeys(key []byte) error

type AffinePoint 

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

func NewAffinePoint 

func NewAffinePoint(x_, y_ *big.Int) AffinePoint

func NullAffinePoint 

func NullAffinePoint() AffinePoint

func (AffinePoint) Clone 

func (p AffinePoint) Clone() AffinePoint

func (AffinePoint) Equals 

func (p AffinePoint) Equals(q AffinePoint) bool

func (AffinePoint) GetX 

func (p AffinePoint) GetX() *big.Int

func (AffinePoint) GetY 

func (p AffinePoint) GetY() *big.Int

func (AffinePoint) IsZero 

func (p AffinePoint) IsZero() bool

func (*AffinePoint) Set 

func (p *AffinePoint) Set(q AffinePoint)

func (*AffinePoint) SetX 

func (p *AffinePoint) SetX(x *big.Int)

func (*AffinePoint) SetY 

func (p *AffinePoint) SetY(y *big.Int)

func (*AffinePoint) SetZero 

func (p *AffinePoint) SetZero()

func (AffinePoint) String 

func (p AffinePoint) String() string

type AsciiAlphabet 

type AsciiAlphabet struct {
	// contains filtered or unexported fields
}
var RstAsciiAlphabet AsciiAlphabet = AsciiAlphabet{65, 122}
var StdAsciiAlphabet AsciiAlphabet = AsciiAlphabet{32, 126}

func (AsciiAlphabet) Geti 

func (alphabet AsciiAlphabet) Geti() int

func (AsciiAlphabet) Getj 

func (alphabet AsciiAlphabet) Getj() int

type Base64 

type Base64 struct{}

func (Base64) ReadFile 

func (Base64) ReadFile(filename string) ([]byte, error)

func (Base64) ReadString 

func (Base64) ReadString(str string) ([]byte, error)

func (Base64) WriteFile 

func (Base64) WriteFile(filename string, b []byte) error

func (Base64) WriteString 

func (Base64) WriteString(b []byte) string

type BigPrimeField 

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

func NewBigPrimeField 

func NewBigPrimeField(p_ *big.Int) BigPrimeField

func (BigPrimeField) Add 

func (f BigPrimeField) Add(r, a, b *big.Int) *big.Int

func (BigPrimeField) Div 

func (f BigPrimeField) Div(r, a, b *big.Int) *big.Int

func (BigPrimeField) IsOne 

func (f BigPrimeField) IsOne(a *big.Int) bool

func (BigPrimeField) IsZero 

func (f BigPrimeField) IsZero(a *big.Int) bool

func (BigPrimeField) Modp 

func (f BigPrimeField) Modp(r, a *big.Int) *big.Int

func (BigPrimeField) Mul 

func (f BigPrimeField) Mul(r, a, b *big.Int) *big.Int

func (BigPrimeField) Neg 

func (f BigPrimeField) Neg(r, a *big.Int) *big.Int

func (BigPrimeField) Sub 

func (f BigPrimeField) Sub(r, a, b *big.Int) *big.Int

type BinaryExtensionField 

type BinaryExtensionField struct {
	IP *BinaryPolynomial
}

func NewBinaryExtensionField 

func NewBinaryExtensionField(ip *BinaryPolynomial) BinaryExtensionField

func (BinaryExtensionField) Add 

func (f BinaryExtensionField) Add(r, a, b *BinaryPolynomial) *BinaryPolynomial

func (BinaryExtensionField) Div 

func (f BinaryExtensionField) Div(r, a, b *BinaryPolynomial) *BinaryPolynomial

func (BinaryExtensionField) IsOne 

func (f BinaryExtensionField) IsOne(a *BinaryPolynomial) bool

func (BinaryExtensionField) IsZero 

func (f BinaryExtensionField) IsZero(a *BinaryPolynomial) bool

func (BinaryExtensionField) Mul 

func (f BinaryExtensionField) Mul(r, a, b *BinaryPolynomial) *BinaryPolynomial

func (BinaryExtensionField) One 

func (f BinaryExtensionField) One() *BinaryPolynomial

func (BinaryExtensionField) Sub 

func (f BinaryExtensionField) Sub(r, a, b *BinaryPolynomial) *BinaryPolynomial

func (BinaryExtensionField) Zero 

func (f BinaryExtensionField) Zero() *BinaryPolynomial

type BinaryPolynomial 

type BinaryPolynomial struct {
	Terms []byte
}

func NewBinaryPolynomial 

func NewBinaryPolynomial(n int) *BinaryPolynomial

func (*BinaryPolynomial) Add 

func (r *BinaryPolynomial) Add(a, b *BinaryPolynomial)

func (*BinaryPolynomial) AddTerm 

func (r *BinaryPolynomial) AddTerm(c, e int)

func (*BinaryPolynomial) Clone 

func (r *BinaryPolynomial) Clone() *BinaryPolynomial

func (*BinaryPolynomial) Degree 

func (r *BinaryPolynomial) Degree() int

func (*BinaryPolynomial) Div 

func (r *BinaryPolynomial) Div(a, b *BinaryPolynomial)

func (*BinaryPolynomial) Equals 

func (r *BinaryPolynomial) Equals(a *BinaryPolynomial) bool

func (*BinaryPolynomial) Exponents 

func (r *BinaryPolynomial) Exponents() []int

func (*BinaryPolynomial) Lead 

func (r *BinaryPolynomial) Lead() (int, int)

func (*BinaryPolynomial) Mod 

func (r *BinaryPolynomial) Mod(a, b *BinaryPolynomial)

func (*BinaryPolynomial) Mul 

func (r *BinaryPolynomial) Mul(a, b *BinaryPolynomial)

func (*BinaryPolynomial) Neg 

func (r *BinaryPolynomial) Neg(a *BinaryPolynomial)

func (*BinaryPolynomial) Realloc 

func (r *BinaryPolynomial) Realloc(n int)

func (*BinaryPolynomial) Resize 

func (r *BinaryPolynomial) Resize(n int)

func (*BinaryPolynomial) Set 

func (r *BinaryPolynomial) Set(a *BinaryPolynomial)

func (*BinaryPolynomial) SetZero 

func (r *BinaryPolynomial) SetZero()

func (*BinaryPolynomial) Shrink 

func (r *BinaryPolynomial) Shrink()

func (*BinaryPolynomial) String 

func (r *BinaryPolynomial) String() string

func (*BinaryPolynomial) Sub 

func (r *BinaryPolynomial) Sub(a, b *BinaryPolynomial)

type Bits 

type Bits []byte

func (Bits) Clear 

func (x Bits) Clear()

func (Bits) Clr 

func (x Bits) Clr(i int)

func (Bits) Dec 

func (x Bits) Dec()

func (Bits) Equals 

func (y Bits) Equals(x []byte) bool

func (Bits) Hex 

func (bits Bits) Hex() string

func (Bits) Inc 

func (x Bits) Inc()

func (Bits) Map 

func (output Bits) Map(input []byte, table [][]int)

func (Bits) MapInjective 

func (output Bits) MapInjective(input []byte, table []int)

Injective mapping of input bits to output bits. The mapping is defined by the table. The jth bit in the output slice is copied from position i = table[j] in the input. (Input and output may NOT point to the same array.)

func (Bits) MapSurjective 

func (output Bits) MapSurjective(input []byte, table []int)

Surjective mapping of input bits to output bits. The mapping is defined by the table. The ith bit in the input slice is mapped to position j = table[i] in the output. (Input and output may NOT point to the same array!)

func (Bits) Read 

func (Bits) Read(str string) Bits

func (Bits) Reverse 

func (y Bits) Reverse(x []byte)

func (Bits) ReverseEndian 

func (y Bits) ReverseEndian(x []byte)

func (Bits) Rotate 

func (y Bits) Rotate(x []byte, n int)

func (Bits) RotateLeft 

func (y Bits) RotateLeft(x []byte, n uint)

func (Bits) RotateRight 

func (y Bits) RotateRight(x []byte, n uint)

func (Bits) Set 

func (x Bits) Set(i int)

func (Bits) String 

func (bits Bits) String() string

func (Bits) Swap 

func (x Bits) Swap(i, j int)

func (Bits) Xor 

func (z Bits) Xor(x, y []byte)

compute element-wise xor: z = x (+) y

type BlockCipher 

type BlockCipher interface {
	Encrypt(input, output []byte) error
	Decrypt(input, output []byte) error
	GetBlockLength() int
}

type ByteMatrix 

type ByteMatrix []byte

func NewByteMatrix 

func NewByteMatrix(a []byte) ByteMatrix

type ByteVector 

type ByteVector byte

func ByteMmulV 

func ByteMmulV(a ByteMatrix, b ByteVector) ByteVector

func ByteVaddV 

func ByteVaddV(a ByteVector, b ByteVector) ByteVector

func NewByteVector 

func NewByteVector(a byte) ByteVector

type CBCCipher 

type CBCCipher struct {
	BlockCipher
	// contains filtered or unexported fields
}

func NewCBCCipher 

func NewCBCCipher(cipher BlockCipher, iv []byte) (*CBCCipher, error)

func (CBCCipher) Decrypt 

func (cipher CBCCipher) Decrypt(input, output []byte) error

func (CBCCipher) Encrypt 

func (cipher CBCCipher) Encrypt(input, output []byte) error

type CTRCipher 

type CTRCipher struct {
	BlockCipher
	// contains filtered or unexported fields
}

func NewCTRCipher 

func NewCTRCipher(cipher BlockCipher, iv []byte) (*CTRCipher, error)

func (*CTRCipher) Decrypt 

func (cipher *CTRCipher) Decrypt(input, output []byte) error

func (*CTRCipher) Encrypt 

func (cipher *CTRCipher) Encrypt(input, output []byte) error

func (*CTRCipher) Reset 

func (cipher *CTRCipher) Reset() error

func (*CTRCipher) SetIV 

func (cipher *CTRCipher) SetIV(iv []byte) error

type Cipher 

type Cipher interface {
	Generate(args ...interface{})
	Encrypt(m Message) Message
	Decrypt(m Message) Message
}

type DESCipher 

type DESCipher struct {
	FeistelNetwork
}

func NewDESCipher 

func NewDESCipher(key Key) (*DESCipher, error)

func (DESCipher) Decrypt 

func (cipher DESCipher) Decrypt(input, output []byte) error

func (DESCipher) Encrypt 

func (cipher DESCipher) Encrypt(input, output []byte) error

func (*DESCipher) GenerateSubkeys 

func (cipher *DESCipher) GenerateSubkeys(key []byte) error

func (DESCipher) RotateKey 

func (des DESCipher) RotateKey(key []byte, n int)

func (DESCipher) RoundFunction 

func (des DESCipher) RoundFunction(key, input, output []byte)

func (DESCipher) Sbox 

func (DESCipher) Sbox(input, output []byte)

type ECBCipher 

type ECBCipher struct {
	BlockCipher
}

func NewECBCipher 

func NewECBCipher(cipher BlockCipher) *ECBCipher

func (ECBCipher) Decrypt 

func (cipher ECBCipher) Decrypt(input, output []byte) error

func (ECBCipher) Encrypt 

func (cipher ECBCipher) Encrypt(input, output []byte) error

type ECC 

type ECC struct {
	Curve EllipticCurve
	G     AffinePoint
	N, H  *big.Int
}
var Secp192k1 ECC
var Secp192r1 ECC
var Secp224k1 ECC
var Secp224r1 ECC
var Secp256k1 ECC
var Secp256r1 ECC
var Secp384r1 ECC
var Secp521r1 ECC

func NewECC 

func NewECC(p, a, b, x_, y_, n_, h_ *big.Int) ECC

func (ECC) Base 

func (ecc ECC) Base() AffinePoint

func (ECC) Eval 

func (ecc ECC) Eval(a AffinePoint, b *big.Int) AffinePoint

type EllipticCurve 

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

func NewEllipticCurve 

func NewEllipticCurve(a_, b_, p *big.Int) EllipticCurve

func (EllipticCurve) AddAffine 

func (ec EllipticCurve) AddAffine(p, q AffinePoint) AffinePoint

func (EllipticCurve) AddMixed 

func (ec EllipticCurve) AddMixed(p ProjectivePoint, q AffinePoint) ProjectivePoint

func (EllipticCurve) AffineFromProjective 

func (ec EllipticCurve) AffineFromProjective(p ProjectivePoint) AffinePoint

func (EllipticCurve) DoubleProjective 

func (ec EllipticCurve) DoubleProjective(p ProjectivePoint) ProjectivePoint

func (EllipticCurve) FeasibleAffinePoint 

func (ec EllipticCurve) FeasibleAffinePoint(p AffinePoint) bool

func (EllipticCurve) MulIntAffine 

func (ec EllipticCurve) MulIntAffine(p AffinePoint, n *big.Int) AffinePoint

func (EllipticCurve) MulIntProjective 

func (ec EllipticCurve) MulIntProjective(q AffinePoint, n *big.Int) AffinePoint

func (EllipticCurve) NegAffine 

func (ec EllipticCurve) NegAffine(p AffinePoint) AffinePoint

func (EllipticCurve) NegProjective 

func (ec EllipticCurve) NegProjective(p ProjectivePoint) ProjectivePoint

type ExtensionField 

type ExtensionField struct {
	IP *Polynomial
}

func NewExtensionField 

func NewExtensionField(ip *Polynomial) ExtensionField

func (ExtensionField) Add 

func (f ExtensionField) Add(a, b *Polynomial) *Polynomial

func (ExtensionField) Div 

func (f ExtensionField) Div(a, b *Polynomial) *Polynomial

func (ExtensionField) IsOne 

func (f ExtensionField) IsOne(a *Polynomial) bool

func (ExtensionField) IsZero 

func (f ExtensionField) IsZero(a *Polynomial) bool

func (ExtensionField) Mul 

func (f ExtensionField) Mul(a, b *Polynomial) *Polynomial

func (ExtensionField) One 

func (f ExtensionField) One() *Polynomial

func (ExtensionField) Sub 

func (f ExtensionField) Sub(a, b *Polynomial) *Polynomial

func (ExtensionField) Zero 

func (f ExtensionField) Zero() *Polynomial

type FeistelNetwork 

type FeistelNetwork struct {
	BlockLength int // block length in bytes
	Keys        [][]byte
	F           RoundFunction
}

func NewFeistelNetwork 

func NewFeistelNetwork(blockLength int, keys [][]byte, f RoundFunction) FeistelNetwork

func (FeistelNetwork) Decrypt 

func (network FeistelNetwork) Decrypt(input, output []byte) error

func (FeistelNetwork) Encrypt 

func (network FeistelNetwork) Encrypt(input, output []byte) error

func (FeistelNetwork) GetBlockLength 

func (network FeistelNetwork) GetBlockLength() int

type FieldFloat 

type FieldFloat interface {
	Neg(a float64) float64
	Add(a, b float64) float64
	Sub(a, b float64) float64
	Mul(a, b float64) float64
	Div(a, b float64) float64
	IsZero(a float64) bool
	IsOne(a float64) bool
	Zero() float64
	One() float64
}

type FieldInt 

type FieldInt interface {
	Neg(a int) int
	Add(a, b int) int
	Sub(a, b int) int
	Mul(a, b int) int
	Div(a, b int) int
	IsZero(a int) bool
	IsOne(a int) bool
	Zero() int
	One() int
}

type FieldPolynomial 

type FieldPolynomial interface {
	Neg(a *Polynomial) *Polynomial
	Add(a, b *Polynomial) *Polynomial
	Sub(a, b *Polynomial) *Polynomial
	Mul(a, b *Polynomial) *Polynomial
	Div(a, b *Polynomial) *Polynomial
	IsZero(a *Polynomial) bool
	IsOne(a *Polynomial) bool
	Zero() *Polynomial
	One() *Polynomial
}

type Key 

type Key []byte

func NewKey 

func NewKey(n int) Key

func (*Key) Read 

func (key *Key) Read(filename string) (Key, error)

func (Key) String 

func (k Key) String() string

func (Key) Uint64Slice 

func (k Key) Uint64Slice() []uint64

func (Key) Write 

func (key Key) Write(filename string) error

type Message 

type Message []byte

func NewMessage 

func NewMessage(text string) Message

func NullMessage 

func NullMessage(n int) Message

func (Message) Base64String 

func (m Message) Base64String() string

func (Message) String 

func (m Message) String() string

type PermutationCipher 

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

func NewAsciiPermutationCipher 

func NewAsciiPermutationCipher(alphabet AsciiAlphabet) PermutationCipher

func NewPermutationCipher 

func NewPermutationCipher() PermutationCipher

func (*PermutationCipher) Decrypt 

func (cipher *PermutationCipher) Decrypt(m Message) Message

func (*PermutationCipher) Encrypt 

func (cipher *PermutationCipher) Encrypt(m Message) Message

func (*PermutationCipher) Generate 

func (cipher *PermutationCipher) Generate(args ...interface{})

func (*PermutationCipher) GetKey 

func (cipher *PermutationCipher) GetKey() Key

func (*PermutationCipher) Swap 

func (cipher *PermutationCipher) Swap(j1, j2 int)

type Polynomial 

type Polynomial struct {
	Terms map[int]int
	Field FieldInt
}

func NewPolynomial 

func NewPolynomial(field FieldInt) *Polynomial

func (*Polynomial) Add 

func (r *Polynomial) Add(a, b *Polynomial)

func (*Polynomial) AddTerm 

func (r *Polynomial) AddTerm(c, e int)

func (*Polynomial) Clone 

func (r *Polynomial) Clone() *Polynomial

func (*Polynomial) Degree 

func (r *Polynomial) Degree() int

func (*Polynomial) Div 

func (r *Polynomial) Div(a, b *Polynomial)

func (*Polynomial) Equals 

func (r *Polynomial) Equals(a *Polynomial) bool

func (*Polynomial) Exponents 

func (r *Polynomial) Exponents() []int

func (*Polynomial) Lead 

func (r *Polynomial) Lead() (int, int)

func (*Polynomial) Mod 

func (r *Polynomial) Mod(a, b *Polynomial)

func (*Polynomial) Mul 

func (r *Polynomial) Mul(a, b *Polynomial)

func (*Polynomial) Neg 

func (r *Polynomial) Neg(a *Polynomial)

func (*Polynomial) Set 

func (r *Polynomial) Set(a *Polynomial)

func (*Polynomial) SetZero 

func (r *Polynomial) SetZero()

func (*Polynomial) String 

func (r *Polynomial) String() string

func (*Polynomial) Sub 

func (r *Polynomial) Sub(a, b *Polynomial)

type PrimeField 

type PrimeField int

func NewPrimeField 

func NewPrimeField(p int) PrimeField

func (PrimeField) Add 

func (p PrimeField) Add(a, b int) int

func (PrimeField) Div 

func (p PrimeField) Div(a, b int) int

func (PrimeField) IsOne 

func (p PrimeField) IsOne(a int) bool

func (PrimeField) IsZero 

func (p PrimeField) IsZero(a int) bool

func (PrimeField) Modp 

func (p PrimeField) Modp(a int) int

func (PrimeField) Mul 

func (p PrimeField) Mul(a, b int) int

func (PrimeField) Neg 

func (p PrimeField) Neg(a int) int

func (PrimeField) One 

func (p PrimeField) One() int

func (PrimeField) Sub 

func (p PrimeField) Sub(a, b int) int

func (PrimeField) Zero 

func (p PrimeField) Zero() int

type ProjectivePoint 

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

func NewProjectivePoint 

func NewProjectivePoint(x_, y_, z_ *big.Int) ProjectivePoint

func NullProjectivePoint 

func NullProjectivePoint() ProjectivePoint

func (ProjectivePoint) Clone 

func (p ProjectivePoint) Clone() ProjectivePoint

func (ProjectivePoint) Equals 

func (p ProjectivePoint) Equals(q ProjectivePoint) bool

func (ProjectivePoint) GetX 

func (p ProjectivePoint) GetX() *big.Int

func (ProjectivePoint) GetY 

func (p ProjectivePoint) GetY() *big.Int

func (ProjectivePoint) GetZ 

func (p ProjectivePoint) GetZ() *big.Int

func (ProjectivePoint) IsZero 

func (p ProjectivePoint) IsZero() bool

func (*ProjectivePoint) Set 

func (p *ProjectivePoint) Set(q ProjectivePoint)

func (*ProjectivePoint) SetAffine 

func (p *ProjectivePoint) SetAffine(q AffinePoint)

func (*ProjectivePoint) SetX 

func (p *ProjectivePoint) SetX(x *big.Int)

func (*ProjectivePoint) SetY 

func (p *ProjectivePoint) SetY(y *big.Int)

func (*ProjectivePoint) SetZ 

func (p *ProjectivePoint) SetZ(z *big.Int)

func (*ProjectivePoint) SetZero 

func (p *ProjectivePoint) SetZero()

func (ProjectivePoint) String 

func (p ProjectivePoint) String() string

type RealField 

type RealField struct {
}

func NewRealField 

func NewRealField() RealField

func (RealField) Add 

func (f RealField) Add(a, b float64) float64

func (RealField) Div 

func (f RealField) Div(a, b float64) float64

func (RealField) IsOne 

func (f RealField) IsOne(a float64) bool

func (RealField) IsZero 

func (f RealField) IsZero(a float64) bool

func (RealField) Mul 

func (f RealField) Mul(a, b float64) float64

func (RealField) Neg 

func (f RealField) Neg(a float64) float64

func (RealField) One 

func (f RealField) One() float64

func (RealField) Sub 

func (f RealField) Sub(a, b float64) float64

func (RealField) Zero 

func (f RealField) Zero() float64

type RoundFunction 

type RoundFunction func(key, input, output []byte)

round function

type TripleDESCipher 

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

func NewTripleDESCipher 

func NewTripleDESCipher(key Key) (*TripleDESCipher, error)

func (TripleDESCipher) Decrypt 

func (cipher TripleDESCipher) Decrypt(input, output []byte) error

func (TripleDESCipher) Encrypt 

func (cipher TripleDESCipher) Encrypt(input, output []byte) error

func (TripleDESCipher) GetBlockLength 

func (cipher TripleDESCipher) GetBlockLength() int

Source Files

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Directories

Path Synopsis
demo
permutation-cipher command

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