edwards25519

Documentation

Overview

* Copyright 2020 The openwallet Authors * This file is part of the openwallet library. * * The openwallet library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * The openwallet library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details.

* Copyright 2020 The openwallet Authors * This file is part of the openwallet library. * * The openwallet library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * The openwallet library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details.

Index

• Variables
• func FeAdd(dst, a, b *FieldElement)
• func FeCMove(f, g *FieldElement, b int32)
• func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64)
• func FeCopy(dst, src *FieldElement)
• func FeFromBytes(dst *FieldElement, src *[32]byte)
• func FeInvert(out, z *FieldElement)
• func FeIsNegative(f *FieldElement) byte
• func FeIsNonZero(f *FieldElement) int32
• func FeMul(h, f, g *FieldElement)
• func FeNeg(h, f *FieldElement)
• func FeOne(fe *FieldElement)
• func FeSquare(h, f *FieldElement)
• func FeSquare2(h, f *FieldElement)
• func FeSub(dst, a, b *FieldElement)
• func FeToBytes(s *[32]byte, h *FieldElement)
• func FeZero(fe *FieldElement)
• func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte)
• func GePointAddVarTime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte, ...)
• func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte)
• func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32)
• func ScMulAdd(s, a, b, c *[32]byte)
• func ScReduce(out *[32]byte, s *[64]byte)
• type CachedGroupElement
• type CompletedGroupElement
  • func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement)
  • func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement)
• type ExtendedGroupElement
  • func (p *ExtendedGroupElement) Double(r *CompletedGroupElement)
  • func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool
  • func (p *ExtendedGroupElement) ToBytes(s *[32]byte)
  • func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement)
  • func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement)
  • func (p *ExtendedGroupElement) Zero()
• type FieldElement
• type PreComputedGroupElement
  • func (p *PreComputedGroupElement) Zero()
• type ProjectiveGroupElement
  • func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement)
  • func (p *ProjectiveGroupElement) ToBytes(s *[32]byte)
  • func (p *ProjectiveGroupElement) Zero()

Variables

var A = FieldElement{
	486662, 0, 0, 0, 0, 0, 0, 0, 0, 0,
}

var SqrtM1 = FieldElement{
	-32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482,
}

Functions

func FeAdd

func FeAdd(dst, a, b *FieldElement)

func FeCMove

func FeCMove(f, g *FieldElement, b int32)

func FeCombine

func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64)

func FeCopy

func FeCopy(dst, src *FieldElement)

func FeFromBytes

func FeFromBytes(dst *FieldElement, src *[32]byte)

func FeInvert

func FeInvert(out, z *FieldElement)

func FeIsNegative

func FeIsNegative(f *FieldElement) byte

func FeIsNonZero

func FeIsNonZero(f *FieldElement) int32

func FeMul

func FeMul(h, f, g *FieldElement)

func FeNeg

func FeNeg(h, f *FieldElement)

func FeOne

func FeOne(fe *FieldElement)

func FeSquare

func FeSquare(h, f *FieldElement)

func FeSquare2

func FeSquare2(h, f *FieldElement)

func FeSub

func FeSub(dst, a, b *FieldElement)

func FeToBytes

func FeToBytes(s *[32]byte, h *FieldElement)

func FeZero

func FeZero(fe *FieldElement)

func GeDoubleScalarMultVartime

func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte)

func GePointAddVarTime

func GePointAddVarTime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte, BB *ExtendedGroupElement)

func GeScalarMultBase

func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte)

func PreComputedGroupElementCMove

func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32)

func ScMulAdd

func ScMulAdd(s, a, b, c *[32]byte)

func ScReduce

func ScReduce(out *[32]byte, s *[64]byte)

Types

type CachedGroupElement

type CachedGroupElement struct {
	Z, T2d FieldElement
	// contains filtered or unexported fields
}

type CompletedGroupElement

type CompletedGroupElement struct {
	X, Y, Z, T FieldElement
}

func (*CompletedGroupElement) ToExtended

func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement)

func (*CompletedGroupElement) ToProjective

func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement)

type ExtendedGroupElement

type ExtendedGroupElement struct {
	X, Y, Z, T FieldElement
}

func (*ExtendedGroupElement) Double

func (p *ExtendedGroupElement) Double(r *CompletedGroupElement)

func (*ExtendedGroupElement) FromBytes

func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool

func (*ExtendedGroupElement) ToBytes

func (p *ExtendedGroupElement) ToBytes(s *[32]byte)

func (*ExtendedGroupElement) ToCached

func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement)

func (*ExtendedGroupElement) ToProjective

func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement)

func (*ExtendedGroupElement) Zero

func (p *ExtendedGroupElement) Zero()

type FieldElement

type FieldElement [10]int32

type PreComputedGroupElement

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

func (*PreComputedGroupElement) Zero

func (p *PreComputedGroupElement) Zero()

type ProjectiveGroupElement

type ProjectiveGroupElement struct {
	X, Y, Z FieldElement
}

func (*ProjectiveGroupElement) Double

func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement)

func (*ProjectiveGroupElement) ToBytes

func (p *ProjectiveGroupElement) ToBytes(s *[32]byte)

func (*ProjectiveGroupElement) Zero

func (p *ProjectiveGroupElement) Zero()