bw6633

package
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 Go to latest Published: Dec 23, 2022 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Overview

Package bw6633 efficient elliptic curve, pairing and hash to curve implementation for bw6-633.

bw6-633: A Brezing--Weng curve (2-chain with bls24-315) 

embedding degree k=6
seed x₀=-3218079743
𝔽p: p=20494478644167774678813387386538961497669590920908778075528754551012016751717791778743535050360001387419576570244406805463255765034468441182772056330021723098661967429339971741066259394985997
𝔽r: r=39705142709513438335025689890408969744933502416914749335064285505637884093126342347073617133569
(E/𝔽p): Y²=X³+4
(Eₜ/𝔽p): Y² = X³+8 (M-type twist)
r ∣ #E(Fp) and r ∣ #Eₜ(𝔽p)

Extension fields tower: 

𝔽p³[u] = 𝔽p/u³-2
𝔽p⁶[v] = 𝔽p²/v²-u

optimal Ate loops: 

x₀+1, x₀^5-x₀^4-x₀

Security: estimated 124-bit level following [https://eprint.iacr.org/2019/885.pdf] (r is 315 bits and p⁶ is 3798 bits)

Warning

This code has not been audited and is provided as-is. In particular, there is no security guarantees such as constant time implementation or side-channel attack resistance.

Index

Constants

View Source 
const ID = ecc.BW6_633

ID BW6_633 ID

View Source 
const SizeOfG1AffineCompressed = 80

SizeOfG1AffineCompressed represents the size in bytes that a G1Affine need in binary form, compressed

View Source 
const SizeOfG1AffineUncompressed = SizeOfG1AffineCompressed * 2

SizeOfG1AffineUncompressed represents the size in bytes that a G1Affine need in binary form, uncompressed

View Source 
const SizeOfG2AffineCompressed = 80

SizeOfG2AffineCompressed represents the size in bytes that a G2Affine need in binary form, compressed

View Source 
const SizeOfG2AffineUncompressed = SizeOfG2AffineCompressed * 2

SizeOfG2AffineUncompressed represents the size in bytes that a G2Affine need in binary form, uncompressed

View Source 
const SizeOfGT = fptower.SizeOfGT

SizeOfGT represents the size in bytes that a GT element need in binary form

Variables

This section is empty.

Functions

func Generators 

func Generators() (g1Jac G1Jac, g2Jac G2Jac, g1Aff G1Affine, g2Aff G2Affine)

Generators return the generators of the r-torsion group, resp. in ker(pi-id), ker(Tr)

func NoSubgroupChecks 

func NoSubgroupChecks() func(*Decoder)

NoSubgroupChecks returns an option to use in NewDecoder(...) which disable subgroup checks on the points the decoder will read. Use with caution, as crafted points from an untrusted source can lead to crypto-attacks.

func PairingCheck 

func PairingCheck(P []G1Affine, Q []G2Affine) (bool, error)

PairingCheck calculates the reduced pairing for a set of points and returns True if the result is One ∏ᵢ e(Pᵢ, Qᵢ) =? 1

This function doesn't check that the inputs are in the correct subgroup. See IsInSubGroup.

func RawEncoding 

func RawEncoding() func(*Encoder)

RawEncoding returns an option to use in NewEncoder(...) which sets raw encoding mode to true points will not be compressed using this option

Types

type Decoder 

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

Decoder reads bw6-633 object values from an inbound stream

func NewDecoder 

func NewDecoder(r io.Reader, options ...func(*Decoder)) *Decoder

NewDecoder returns a binary decoder supporting curve bw6-633 objects in both compressed and uncompressed (raw) forms

func (*Decoder) BytesRead 

func (dec *Decoder) BytesRead() int64

BytesRead return total bytes read from reader

func (*Decoder) Decode 

func (dec *Decoder) Decode(v interface{}) (err error)

Decode reads the binary encoding of v from the stream type must be *uint64, *fr.Element, *fp.Element, *G1Affine, *G2Affine, *[]G1Affine or *[]G2Affine

type Encoder 

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

Encoder writes bw6-633 object values to an output stream

func NewEncoder 

func NewEncoder(w io.Writer, options ...func(*Encoder)) *Encoder

NewEncoder returns a binary encoder supporting curve bw6-633 objects

func (*Encoder) BytesWritten 

func (enc *Encoder) BytesWritten() int64

BytesWritten return total bytes written on writer

func (*Encoder) Encode 

func (enc *Encoder) Encode(v interface{}) (err error)

Encode writes the binary encoding of v to the stream type must be uint64, *fr.Element, *fp.Element, *G1Affine, *G2Affine, []G1Affine or []G2Affine

type G1Affine 

type G1Affine struct {
	X, Y fp.Element
}

G1Affine point in affine coordinates

func BatchJacobianToAffineG1 

func BatchJacobianToAffineG1(points []G1Jac) []G1Affine

BatchJacobianToAffineG1 converts points in Jacobian coordinates to Affine coordinates performing a single field inversion (Montgomery batch inversion trick).

func BatchProjectiveToAffineG1 

func BatchProjectiveToAffineG1(points []g1Proj) []G1Affine

BatchProjectiveToAffineG1 converts points in Projective coordinates to Affine coordinates performing a single field inversion (Montgomery batch inversion trick).

func BatchScalarMultiplicationG1 

func BatchScalarMultiplicationG1(base *G1Affine, scalars []fr.Element) []G1Affine

BatchScalarMultiplicationG1 multiplies the same base by all scalars and return resulting points in affine coordinates uses a simple windowed-NAF like exponentiation algorithm

func EncodeToG1 

func EncodeToG1(msg, dst []byte) (G1Affine, error)

EncodeToG1 hashes a message to a point on the G1 curve using the SSWU map. It is faster than HashToG1, but the result is not uniformly distributed. Unsuitable as a random oracle. dst stands for "domain separation tag", a string unique to the construction using the hash function https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-16.html#roadmap

func HashToG1 

func HashToG1(msg, dst []byte) (G1Affine, error)

HashToG1 hashes a message to a point on the G1 curve using the SSWU map. Slower than EncodeToG1, but usable as a random oracle. dst stands for "domain separation tag", a string unique to the construction using the hash function https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-16.html#roadmap

func MapToG1 

func MapToG1(u fp.Element) G1Affine

MapToG1 invokes the SSWU map, and guarantees that the result is in g1

func (*G1Affine) Add 

func (p *G1Affine) Add(a, b *G1Affine) *G1Affine

Add adds two point in affine coordinates. This should rarely be used as it is very inefficient compared to Jacobian

func (*G1Affine) Bytes 

func (p *G1Affine) Bytes() (res [SizeOfG1AffineCompressed]byte)

Bytes returns binary representation of p will store X coordinate in regular form and a parity bit we follow the BLS12-381 style encoding as specified in ZCash and now IETF

The most significant bit, when set, indicates that the point is in compressed form. Otherwise, the point is in uncompressed form.

The second-most significant bit indicates that the point is at infinity. If this bit is set, the remaining bits of the group element's encoding should be set to zero.

The third-most significant bit is set if (and only if) this point is in compressed form and it is not the point at infinity and its y-coordinate is the lexicographically largest of the two associated with the encoded x-coordinate.

func (*G1Affine) ClearCofactor 

func (p *G1Affine) ClearCofactor(a *G1Affine) *G1Affine

ClearCofactor maps a point in curve to r-torsion

func (*G1Affine) Equal 

func (p *G1Affine) Equal(a *G1Affine) bool

Equal tests if two points (in Affine coordinates) are equal

func (*G1Affine) FromJacobian 

func (p *G1Affine) FromJacobian(p1 *G1Jac) *G1Affine

FromJacobian rescales a point in Jacobian coord in z=1 plane

func (*G1Affine) IsInSubGroup 

func (p *G1Affine) IsInSubGroup() bool

IsInSubGroup returns true if p is in the correct subgroup, false otherwise

func (*G1Affine) IsInfinity 

func (p *G1Affine) IsInfinity() bool

IsInfinity checks if the point is infinity in affine, it's encoded as (0,0) (0,0) is never on the curve for j=0 curves

func (*G1Affine) IsOnCurve 

func (p *G1Affine) IsOnCurve() bool

IsOnCurve returns true if p in on the curve

func (*G1Affine) Marshal 

func (p *G1Affine) Marshal() []byte

Marshal converts p to a byte slice (without point compression)

func (*G1Affine) MultiExp 

func (p *G1Affine) MultiExp(points []G1Affine, scalars []fr.Element, config ecc.MultiExpConfig) (*G1Affine, error)

MultiExp implements section 4 of https://eprint.iacr.org/2012/549.pdf

This call return an error if len(scalars) != len(points) or if provided config is invalid.

func (*G1Affine) Neg 

func (p *G1Affine) Neg(a *G1Affine) *G1Affine

Neg computes -G

func (*G1Affine) RawBytes 

func (p *G1Affine) RawBytes() (res [SizeOfG1AffineUncompressed]byte)

RawBytes returns binary representation of p (stores X and Y coordinate) see Bytes() for a compressed representation

func (*G1Affine) ScalarMultiplication 

func (p *G1Affine) ScalarMultiplication(a *G1Affine, s *big.Int) *G1Affine

ScalarMultiplication computes and returns p = a ⋅ s

func (*G1Affine) Set 

func (p *G1Affine) Set(a *G1Affine) *G1Affine

Set sets p to the provided point

func (*G1Affine) SetBytes 

func (p *G1Affine) SetBytes(buf []byte) (int, error)

SetBytes sets p from binary representation in buf and returns number of consumed bytes

bytes in buf must match either RawBytes() or Bytes() output

if buf is too short io.ErrShortBuffer is returned

if buf contains compressed representation (output from Bytes()) and we're unable to compute the Y coordinate (i.e the square root doesn't exist) this function returns an error

this check if the resulting point is on the curve and in the correct subgroup

func (*G1Affine) String 

func (p *G1Affine) String() string

String returns the string representation of the point or "O" if it is infinity

func (*G1Affine) Sub 

func (p *G1Affine) Sub(a, b *G1Affine) *G1Affine

Sub subs two point in affine coordinates. This should rarely be used as it is very inefficient compared to Jacobian

func (*G1Affine) Unmarshal 

func (p *G1Affine) Unmarshal(buf []byte) error

Unmarshal is an allias to SetBytes()

type G1Jac 

type G1Jac struct {
	X, Y, Z fp.Element
}

G1Jac is a point with fp.Element coordinates

func (*G1Jac) AddAssign 

func (p *G1Jac) AddAssign(a *G1Jac) *G1Jac

AddAssign point addition in montgomery form https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#addition-add-2007-bl

func (*G1Jac) AddMixed 

func (p *G1Jac) AddMixed(a *G1Affine) *G1Jac

AddMixed point addition http://www.hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#addition-madd-2007-bl

func (*G1Jac) ClearCofactor 

func (p *G1Jac) ClearCofactor(a *G1Jac) *G1Jac

ClearCofactor maps a point in E(Fp) to E(Fp)[r]

func (*G1Jac) Double 

func (p *G1Jac) Double(q *G1Jac) *G1Jac

Double doubles a point in Jacobian coordinates https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2007-bl

func (*G1Jac) DoubleAssign 

func (p *G1Jac) DoubleAssign() *G1Jac

DoubleAssign doubles a point in Jacobian coordinates https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2007-bl

func (*G1Jac) Equal 

func (p *G1Jac) Equal(a *G1Jac) bool

Equal tests if two points (in Jacobian coordinates) are equal

func (*G1Jac) FromAffine 

func (p *G1Jac) FromAffine(Q *G1Affine) *G1Jac

FromAffine sets p = Q, p in Jacobian, Q in affine

func (*G1Jac) IsInSubGroup 

func (p *G1Jac) IsInSubGroup() bool

IsInSubGroup returns true if p is on the r-torsion, false otherwise. 3r P = (x+1)ϕ(P) + (-x^5 + x⁴ + x)P

func (*G1Jac) IsOnCurve 

func (p *G1Jac) IsOnCurve() bool

IsOnCurve returns true if p in on the curve

func (*G1Jac) MultiExp 

func (p *G1Jac) MultiExp(points []G1Affine, scalars []fr.Element, config ecc.MultiExpConfig) (*G1Jac, error)

MultiExp implements section 4 of https://eprint.iacr.org/2012/549.pdf

This call return an error if len(scalars) != len(points) or if provided config is invalid.

func (*G1Jac) Neg 

func (p *G1Jac) Neg(a *G1Jac) *G1Jac

Neg computes -G

func (*G1Jac) ScalarMultiplication 

func (p *G1Jac) ScalarMultiplication(a *G1Jac, s *big.Int) *G1Jac

ScalarMultiplication computes and returns p = a ⋅ s see https://www.iacr.org/archive/crypto2001/21390189.pdf

func (*G1Jac) ScalarMultiplicationAffine 

func (p *G1Jac) ScalarMultiplicationAffine(a *G1Affine, s *big.Int) *G1Jac

ScalarMultiplicationAffine computes and returns p = a ⋅ s Takes an affine point and returns a Jacobian point (useful for KZG)

func (*G1Jac) Set 

func (p *G1Jac) Set(a *G1Jac) *G1Jac

Set sets p to the provided point

func (*G1Jac) String 

func (p *G1Jac) String() string

String returns canonical representation of the point in affine coordinates

func (*G1Jac) SubAssign 

func (p *G1Jac) SubAssign(a *G1Jac) *G1Jac

SubAssign subtracts two points on the curve

type G2Affine 

type G2Affine struct {
	X, Y fp.Element
}

G2Affine point in affine coordinates

func BatchScalarMultiplicationG2 

func BatchScalarMultiplicationG2(base *G2Affine, scalars []fr.Element) []G2Affine

BatchScalarMultiplicationG2 multiplies the same base by all scalars and return resulting points in affine coordinates uses a simple windowed-NAF like exponentiation algorithm

func EncodeToG2 

func EncodeToG2(msg, dst []byte) (G2Affine, error)

EncodeToG2 hashes a message to a point on the G2 curve using the SSWU map. It is faster than HashToG2, but the result is not uniformly distributed. Unsuitable as a random oracle. dst stands for "domain separation tag", a string unique to the construction using the hash function https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-16.html#roadmap

func HashToG2 

func HashToG2(msg, dst []byte) (G2Affine, error)

HashToG2 hashes a message to a point on the G2 curve using the SSWU map. Slower than EncodeToG2, but usable as a random oracle. dst stands for "domain separation tag", a string unique to the construction using the hash function https://www.ietf.org/archive/id/draft-irtf-cfrg-hash-to-curve-16.html#roadmap

func MapToG2 

func MapToG2(u fp.Element) G2Affine

MapToG2 invokes the SSWU map, and guarantees that the result is in g2

func (*G2Affine) Add 

func (p *G2Affine) Add(a, b *G2Affine) *G2Affine

Add adds two point in affine coordinates. This should rarely be used as it is very inefficient compared to Jacobian

func (*G2Affine) Bytes 

func (p *G2Affine) Bytes() (res [SizeOfG2AffineCompressed]byte)

Bytes returns binary representation of p will store X coordinate in regular form and a parity bit we follow the BLS12-381 style encoding as specified in ZCash and now IETF

The most significant bit, when set, indicates that the point is in compressed form. Otherwise, the point is in uncompressed form.

The second-most significant bit indicates that the point is at infinity. If this bit is set, the remaining bits of the group element's encoding should be set to zero.

The third-most significant bit is set if (and only if) this point is in compressed form and it is not the point at infinity and its y-coordinate is the lexicographically largest of the two associated with the encoded x-coordinate.

func (*G2Affine) ClearCofactor 

func (p *G2Affine) ClearCofactor(a *G2Affine) *G2Affine

ClearCofactor maps a point in curve to r-torsion

func (*G2Affine) Equal 

func (p *G2Affine) Equal(a *G2Affine) bool

Equal tests if two points (in Affine coordinates) are equal

func (*G2Affine) FromJacobian 

func (p *G2Affine) FromJacobian(p1 *G2Jac) *G2Affine

FromJacobian rescales a point in Jacobian coord in z=1 plane

func (*G2Affine) IsInSubGroup 

func (p *G2Affine) IsInSubGroup() bool

IsInSubGroup returns true if p is in the correct subgroup, false otherwise

func (*G2Affine) IsInfinity 

func (p *G2Affine) IsInfinity() bool

IsInfinity checks if the point is infinity in affine, it's encoded as (0,0) (0,0) is never on the curve for j=0 curves

func (*G2Affine) IsOnCurve 

func (p *G2Affine) IsOnCurve() bool

IsOnCurve returns true if p in on the curve

func (*G2Affine) Marshal 

func (p *G2Affine) Marshal() []byte

Marshal converts p to a byte slice (without point compression)

func (*G2Affine) MultiExp 

func (p *G2Affine) MultiExp(points []G2Affine, scalars []fr.Element, config ecc.MultiExpConfig) (*G2Affine, error)

MultiExp implements section 4 of https://eprint.iacr.org/2012/549.pdf

This call return an error if len(scalars) != len(points) or if provided config is invalid.

func (*G2Affine) Neg 

func (p *G2Affine) Neg(a *G2Affine) *G2Affine

Neg computes -G

func (*G2Affine) RawBytes 

func (p *G2Affine) RawBytes() (res [SizeOfG2AffineUncompressed]byte)

RawBytes returns binary representation of p (stores X and Y coordinate) see Bytes() for a compressed representation

func (*G2Affine) ScalarMultiplication 

func (p *G2Affine) ScalarMultiplication(a *G2Affine, s *big.Int) *G2Affine

ScalarMultiplication computes and returns p = a ⋅ s

func (*G2Affine) Set 

func (p *G2Affine) Set(a *G2Affine) *G2Affine

Set sets p to the provided point

func (*G2Affine) SetBytes 

func (p *G2Affine) SetBytes(buf []byte) (int, error)

SetBytes sets p from binary representation in buf and returns number of consumed bytes

bytes in buf must match either RawBytes() or Bytes() output

if buf is too short io.ErrShortBuffer is returned

if buf contains compressed representation (output from Bytes()) and we're unable to compute the Y coordinate (i.e the square root doesn't exist) this function returns an error

this check if the resulting point is on the curve and in the correct subgroup

func (*G2Affine) String 

func (p *G2Affine) String() string

String returns the string representation of the point or "O" if it is infinity

func (*G2Affine) Sub 

func (p *G2Affine) Sub(a, b *G2Affine) *G2Affine

Sub subs two point in affine coordinates. This should rarely be used as it is very inefficient compared to Jacobian

func (*G2Affine) Unmarshal 

func (p *G2Affine) Unmarshal(buf []byte) error

Unmarshal is an allias to SetBytes()

type G2Jac 

type G2Jac struct {
	X, Y, Z fp.Element
}

G2Jac is a point with fp.Element coordinates

func (*G2Jac) AddAssign 

func (p *G2Jac) AddAssign(a *G2Jac) *G2Jac

AddAssign point addition in montgomery form https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#addition-add-2007-bl

func (*G2Jac) AddMixed 

func (p *G2Jac) AddMixed(a *G2Affine) *G2Jac

AddMixed point addition http://www.hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#addition-madd-2007-bl

func (*G2Jac) ClearCofactor 

func (p *G2Jac) ClearCofactor(a *G2Jac) *G2Jac

ClearCofactor maps a point in curve to r-torsion

func (*G2Jac) Double 

func (p *G2Jac) Double(q *G2Jac) *G2Jac

Double doubles a point in Jacobian coordinates https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2007-bl

func (*G2Jac) DoubleAssign 

func (p *G2Jac) DoubleAssign() *G2Jac

DoubleAssign doubles a point in Jacobian coordinates https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2007-bl

func (*G2Jac) Equal 

func (p *G2Jac) Equal(a *G2Jac) bool

Equal tests if two points (in Jacobian coordinates) are equal

func (*G2Jac) FromAffine 

func (p *G2Jac) FromAffine(Q *G2Affine) *G2Jac

FromAffine sets p = Q, p in Jacobian, Q in affine

func (*G2Jac) IsInSubGroup 

func (p *G2Jac) IsInSubGroup() bool

IsInSubGroup returns true if p is on the r-torsion, false otherwise. 3r P = (x+1)ϕ(P) + (-x^5 + x⁴ + x)P

func (*G2Jac) IsOnCurve 

func (p *G2Jac) IsOnCurve() bool

IsOnCurve returns true if p in on the curve

func (*G2Jac) MultiExp 

func (p *G2Jac) MultiExp(points []G2Affine, scalars []fr.Element, config ecc.MultiExpConfig) (*G2Jac, error)

MultiExp implements section 4 of https://eprint.iacr.org/2012/549.pdf

This call return an error if len(scalars) != len(points) or if provided config is invalid.

func (*G2Jac) Neg 

func (p *G2Jac) Neg(a *G2Jac) *G2Jac

Neg computes -G

func (*G2Jac) ScalarMultiplication 

func (p *G2Jac) ScalarMultiplication(a *G2Jac, s *big.Int) *G2Jac

ScalarMultiplication computes and returns p = a ⋅ s see https://www.iacr.org/archive/crypto2001/21390189.pdf

func (*G2Jac) Set 

func (p *G2Jac) Set(a *G2Jac) *G2Jac

Set sets p to the provided point

func (*G2Jac) String 

func (p *G2Jac) String() string

String returns canonical representation of the point in affine coordinates

func (*G2Jac) SubAssign 

func (p *G2Jac) SubAssign(a *G2Jac) *G2Jac

SubAssign subtracts two points on the curve

type GT 

type GT = fptower.E6

GT target group of the pairing

func FinalExponentiation 

func FinalExponentiation(z *GT, _z ...*GT) GT

FinalExponentiation computes the exponentiation (∏ᵢ zᵢ)ᵈ where d = (p^6-1)/r = (p^6-1)/Φ_6(p) ⋅ Φ_6(p)/r = (p^3-1)(p+1)(p^2 - p +1)/r we use instead d=s ⋅ (p^3-1)(p+1)(p^2 - p +1)/r where s is the cofactor 3(x_0+1) (El Housni and Guillevic)

func MillerLoop 

func MillerLoop(P []G1Affine, Q []G2Affine) (GT, error)

MillerLoop Optimal Tate alternative (or twisted ate or Eta revisited) computes the multi-Miller loop ∏ᵢ MillerLoop(Pᵢ, Qᵢ) Alg.2 in https://eprint.iacr.org/2021/1359.pdf

func Pair 

func Pair(P []G1Affine, Q []G2Affine) (GT, error)

Pair calculates the reduced pairing for a set of points ∏ᵢ e(Pᵢ, Qᵢ).

This function doesn't check that the inputs are in the correct subgroup. See IsInSubGroup.

Source Files

View all Source files

Directories

Path Synopsis
Package fp contains field arithmetic operations for modulus = 0x126633...70000d.
 Package fp contains field arithmetic operations for modulus = 0x126633...70000d.
fr
Package fr contains field arithmetic operations for modulus = 0x4c23a0...300001.
 Package fr contains field arithmetic operations for modulus = 0x4c23a0...300001.
fft
Package fft provides in-place discrete Fourier transform.
 Package fft provides in-place discrete Fourier transform.
fri
Package fri provides the FRI (multiplicative) commitment scheme.
 Package fri provides the FRI (multiplicative) commitment scheme.
kzg
Package kzg provides a KZG commitment scheme.
 Package kzg provides a KZG commitment scheme.
mimc
Package mimc provides MiMC hash function using Miyaguchi–Preneel construction.
 Package mimc provides MiMC hash function using Miyaguchi–Preneel construction.
permutation
Package permutation provides an API to build permutation proofs.
 Package permutation provides an API to build permutation proofs.
plookup
Package plookup provides an API to build plookup proofs.
 Package plookup provides an API to build plookup proofs.
polynomial
Package polynomial provides polynomial methods and commitment schemes.
 Package polynomial provides polynomial methods and commitment schemes.
internal
fptower
Package twistededwards provides bw6-633's twisted edwards "companion curve" defined on fr.
 Package twistededwards provides bw6-633's twisted edwards "companion curve" defined on fr.
eddsa
Package eddsa provides EdDSA signature scheme on bw6-633's twisted edwards curve.
 Package eddsa provides EdDSA signature scheme on bw6-633's twisted edwards curve.

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