bls

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 Go to latest Published: Jul 7, 2021 License: MIT Imports: 12 Imported by: 0

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kyber-bls12381

Kyber wrapper around kilic/bls12381 library.

Note: GT does not fully support the kyber.Point interface yet.

Previous library

This repository is the successor of the previous library bls12381 which was a complete fork of the upstream library.

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var Domain = []byte("BLS_SIG_BLS12381G2_XMD:SHA-256_SSWU_RO_NUL_")

Domain comes from the ciphersuite used by the RFC of this name compatible with the paired library > v18

Functions

func NewBLS12381Suite 

func NewBLS12381Suite() pairing.Suite

func NewGroupG1 

func NewGroupG1() kyber.Group

func NewGroupG2 

func NewGroupG2() kyber.Group

func NewGroupGT 

func NewGroupGT() kyber.Group

func NewKyberScalar 

func NewKyberScalar() kyber.Scalar

Types

type Fr32 

type Fr32 struct {
	V *bls12381.Fr // Integer value from 0 through N-1
}

func NewFr32 

func NewFr32() *Fr32

NewInt creaters a new Int with a given big.Int and a big.Int modulus.

func (*Fr32) Add 

func (s *Fr32) Add(a, b kyber.Scalar) kyber.Scalar

Set to the modular sum of kyber.Scalars a and b.

func (*Fr32) Clone 

func (s *Fr32) Clone() kyber.Scalar

Clone creates a new kyber.Scalar with the same value.

func (*Fr32) Div 

func (s *Fr32) Div(a, b kyber.Scalar) kyber.Scalar

Set to the modular division of kyber.Scalar a by kyber.Scalar b.

func (*Fr32) Equal 

func (s *Fr32) Equal(s2 kyber.Scalar) bool

Equality test for two kyber.Scalars derived from the same Group.

func (*Fr32) Inv 

func (s *Fr32) Inv(a kyber.Scalar) kyber.Scalar

Set to the modular inverse of kyber.Scalar a.

func (*Fr32) MarshalBinary 

func (s *Fr32) MarshalBinary() (data []byte, err error)

func (*Fr32) MarshalSize 

func (s *Fr32) MarshalSize() int

Encoded length of this object in bytes.

func (*Fr32) MarshalTo 

func (s *Fr32) MarshalTo(w io.Writer) (int, error)

Encode the contents of this object and write it to an io.Writer.

func (*Fr32) Mul 

func (s *Fr32) Mul(a, b kyber.Scalar) kyber.Scalar

Set to the modular product of kyber.Scalars a and b.

func (*Fr32) Neg 

func (s *Fr32) Neg(a kyber.Scalar) kyber.Scalar

Set to the modular negation of kyber.Scalar a.

func (*Fr32) One 

func (s *Fr32) One() kyber.Scalar

Set to the multiplicative identity (1).

func (*Fr32) Pick 

func (s *Fr32) Pick(rand cipher.Stream) kyber.Scalar

Set to a fresh random or pseudo-random kyber.Scalar.

func (*Fr32) Set 

func (s *Fr32) Set(a kyber.Scalar) kyber.Scalar

Set sets the receiver equal to another kyber.Scalar a.

func (*Fr32) SetBytes 

func (s *Fr32) SetBytes(b []byte) kyber.Scalar

SetBytes sets the kyber.Scalar from a byte-slice, reducing if necessary to the appropriate modulus. The endianess of the byte-slice is determined by the implementation.

func (*Fr32) SetInt64 

func (s *Fr32) SetInt64(v int64) kyber.Scalar

SetInt64 sets the receiver to a small integer value.

func (*Fr32) String 

func (s *Fr32) String() string

String returns the human readable string representation of the object.

func (*Fr32) Sub 

func (s *Fr32) Sub(a, b kyber.Scalar) kyber.Scalar

Set to the modular difference a - b.

func (*Fr32) UnmarshalBinary 

func (s *Fr32) UnmarshalBinary(data []byte) error

func (*Fr32) UnmarshalFrom 

func (s *Fr32) UnmarshalFrom(r io.Reader) (int, error)

Decode the content of this object by reading from an io.Reader. If r is an XOF, it uses r to pick a valid object pseudo-randomly, which may entail reading more than Len bytes due to retries.

func (*Fr32) Zero 

func (s *Fr32) Zero() kyber.Scalar

Set to the additive identity (0).

type GroupChecker 

type GroupChecker interface {
	kyber.Point
	IsInCorrectGroup() bool
}

GroupChecker allows to verify if a Point is in the correct group or not. For curves which don't have a prime order, we need to only consider the points lying in the subgroup of prime order. That check returns true if the point is correct or not.

type KyberG1 

type KyberG1 struct {
	// contains filtered or unexported fields
}

KyberG1 is a kyber.Point holding a G1 point on BLS12-381 curve

func NullKyberG1 

func NullKyberG1() *KyberG1

func (*KyberG1) Add 

func (k *KyberG1) Add(a, b kyber.Point) kyber.Point

func (*KyberG1) Base 

func (k *KyberG1) Base() kyber.Point

func (*KyberG1) Clone 

func (k *KyberG1) Clone() kyber.Point

func (*KyberG1) Data 

func (k *KyberG1) Data() ([]byte, error)

func (*KyberG1) Embed 

func (k *KyberG1) Embed(data []byte, rand cipher.Stream) kyber.Point

func (*KyberG1) EmbedLen 

func (k *KyberG1) EmbedLen() int

func (*KyberG1) Equal 

func (k *KyberG1) Equal(k2 kyber.Point) bool

func (*KyberG1) Hash 

func (k *KyberG1) Hash(m []byte) kyber.Point

func (*KyberG1) IsInCorrectGroup 

func (k *KyberG1) IsInCorrectGroup() bool

func (*KyberG1) MarshalBinary 

func (k *KyberG1) MarshalBinary() ([]byte, error)

func (*KyberG1) MarshalSize 

func (k *KyberG1) MarshalSize() int

func (*KyberG1) MarshalTo 

func (k *KyberG1) MarshalTo(w io.Writer) (int, error)

func (*KyberG1) Mul 

func (k *KyberG1) Mul(s kyber.Scalar, q kyber.Point) kyber.Point

func (*KyberG1) Neg 

func (k *KyberG1) Neg(a kyber.Point) kyber.Point

func (*KyberG1) Null 

func (k *KyberG1) Null() kyber.Point

func (*KyberG1) Pick 

func (k *KyberG1) Pick(rand cipher.Stream) kyber.Point

func (*KyberG1) Set 

func (k *KyberG1) Set(q kyber.Point) kyber.Point

func (*KyberG1) String 

func (k *KyberG1) String() string

func (*KyberG1) Sub 

func (k *KyberG1) Sub(a, b kyber.Point) kyber.Point

func (*KyberG1) UnmarshalBinary 

func (k *KyberG1) UnmarshalBinary(buff []byte) error

func (*KyberG1) UnmarshalFrom 

func (k *KyberG1) UnmarshalFrom(r io.Reader) (int, error)

type KyberG2 

type KyberG2 struct {
	// contains filtered or unexported fields
}

KyberG2 is a kyber.Point holding a G2 point on BLS12-381 curve

func NullKyberG2 

func NullKyberG2() *KyberG2

func (*KyberG2) Add 

func (k *KyberG2) Add(a, b kyber.Point) kyber.Point

func (*KyberG2) Base 

func (k *KyberG2) Base() kyber.Point

func (*KyberG2) Clone 

func (k *KyberG2) Clone() kyber.Point

func (*KyberG2) Data 

func (k *KyberG2) Data() ([]byte, error)

func (*KyberG2) Embed 

func (k *KyberG2) Embed(data []byte, rand cipher.Stream) kyber.Point

func (*KyberG2) EmbedLen 

func (k *KyberG2) EmbedLen() int

func (*KyberG2) Equal 

func (k *KyberG2) Equal(k2 kyber.Point) bool

func (*KyberG2) Hash 

func (k *KyberG2) Hash(m []byte) kyber.Point

func (*KyberG2) IsInCorrectGroup 

func (k *KyberG2) IsInCorrectGroup() bool

func (*KyberG2) MarshalBinary 

func (k *KyberG2) MarshalBinary() ([]byte, error)

func (*KyberG2) MarshalSize 

func (k *KyberG2) MarshalSize() int

func (*KyberG2) MarshalTo 

func (k *KyberG2) MarshalTo(w io.Writer) (int, error)

func (*KyberG2) Mul 

func (k *KyberG2) Mul(s kyber.Scalar, q kyber.Point) kyber.Point

func (*KyberG2) Neg 

func (k *KyberG2) Neg(a kyber.Point) kyber.Point

func (*KyberG2) Null 

func (k *KyberG2) Null() kyber.Point

func (*KyberG2) Pick 

func (k *KyberG2) Pick(rand cipher.Stream) kyber.Point

func (*KyberG2) Set 

func (k *KyberG2) Set(q kyber.Point) kyber.Point

func (*KyberG2) String 

func (k *KyberG2) String() string

func (*KyberG2) Sub 

func (k *KyberG2) Sub(a, b kyber.Point) kyber.Point

func (*KyberG2) UnmarshalBinary 

func (k *KyberG2) UnmarshalBinary(buff []byte) error

func (*KyberG2) UnmarshalFrom 

func (k *KyberG2) UnmarshalFrom(r io.Reader) (int, error)

type KyberGT 

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

func (*KyberGT) Add 

func (k *KyberGT) Add(a, b kyber.Point) kyber.Point

func (*KyberGT) Base 

func (k *KyberGT) Base() kyber.Point

func (*KyberGT) Clone 

func (k *KyberGT) Clone() kyber.Point

func (*KyberGT) Data 

func (k *KyberGT) Data() ([]byte, error)

func (*KyberGT) Embed 

func (k *KyberGT) Embed(data []byte, rand cipher.Stream) kyber.Point

func (*KyberGT) EmbedLen 

func (k *KyberGT) EmbedLen() int

func (*KyberGT) Equal 

func (k *KyberGT) Equal(kk kyber.Point) bool

func (*KyberGT) MarshalBinary 

func (k *KyberGT) MarshalBinary() ([]byte, error)

func (*KyberGT) MarshalSize 

func (k *KyberGT) MarshalSize() int

func (*KyberGT) MarshalTo 

func (k *KyberGT) MarshalTo(w io.Writer) (int, error)

func (*KyberGT) Mul 

func (k *KyberGT) Mul(s kyber.Scalar, q kyber.Point) kyber.Point

func (*KyberGT) Neg 

func (k *KyberGT) Neg(q kyber.Point) kyber.Point

func (*KyberGT) Null 

func (k *KyberGT) Null() kyber.Point

func (*KyberGT) Pick 

func (k *KyberGT) Pick(rand cipher.Stream) kyber.Point

func (*KyberGT) Set 

func (k *KyberGT) Set(q kyber.Point) kyber.Point

func (*KyberGT) String 

func (k *KyberGT) String() string

func (*KyberGT) Sub 

func (k *KyberGT) Sub(a, b kyber.Point) kyber.Point

func (*KyberGT) UnmarshalBinary 

func (k *KyberGT) UnmarshalBinary(buf []byte) error

func (*KyberGT) UnmarshalFrom 

func (k *KyberGT) UnmarshalFrom(r io.Reader) (int, error)

type Suite 

type Suite struct{}

func (*Suite) G1 

func (s *Suite) G1() kyber.Group

func (*Suite) G2 

func (s *Suite) G2() kyber.Group

func (*Suite) GT 

func (s *Suite) GT() kyber.Group

func (*Suite) Hash 

func (s *Suite) Hash() hash.Hash

Hash returns a newly instantiated sha256 hash function.

func (*Suite) New 

func (s *Suite) New(t reflect.Type) interface{}

New implements the kyber.Encoding interface.

func (*Suite) Pair 

func (s *Suite) Pair(p1, p2 kyber.Point) kyber.Point

func (*Suite) RandomStream 

func (s *Suite) RandomStream() cipher.Stream

RandomStream returns a cipher.Stream which corresponds to a key stream from crypto/rand.

func (*Suite) Read 

func (s *Suite) Read(r io.Reader, objs ...interface{}) error

Read is the default implementation of kyber.Encoding interface Read.

func (*Suite) ValidatePairing 

func (s *Suite) ValidatePairing(p1, p2, p3, p4 kyber.Point) bool

ValidatePairing implements the `pairing.Suite` interface

func (*Suite) Write 

func (s *Suite) Write(w io.Writer, objs ...interface{}) error

Write is the default implementation of kyber.Encoding interface Write.

func (*Suite) XOF 

func (s *Suite) XOF(seed []byte) kyber.XOF

XOF returns a newlly instantiated blake2xb XOF function.

Source Files

View all Source files

Directories

Path Synopsis
tests
consumer command
generator command

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