mirror of https://github.com/gtank/ristretto255
internal/ed25519: rename twoD to D2
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parent
26af03f7b3
commit
9353104792
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@ -18,7 +18,7 @@ import (
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// D is a constant in the curve equation.
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// D is a constant in the curve equation.
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var D = &radix51.FieldElement{929955233495203, 466365720129213,
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var D = &radix51.FieldElement{929955233495203, 466365720129213,
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1662059464998953, 2033849074728123, 1442794654840575}
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1662059464998953, 2033849074728123, 1442794654840575}
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var twoD = new(radix51.FieldElement).Add(D, D)
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var D2 = new(radix51.FieldElement).Add(D, D)
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// Point types.
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// Point types.
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@ -125,14 +125,14 @@ func (v *ProjCached) FromP3(p *ProjP3) *ProjCached {
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v.YplusX.Add(&p.Y, &p.X)
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v.YplusX.Add(&p.Y, &p.X)
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v.YminusX.Sub(&p.Y, &p.X)
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v.YminusX.Sub(&p.Y, &p.X)
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v.Z.Set(&p.Z)
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v.Z.Set(&p.Z)
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v.T2d.Mul(&p.T, twoD)
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v.T2d.Mul(&p.T, D2)
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return v
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return v
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}
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}
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func (v *AffineCached) FromP3(p *ProjP3) *AffineCached {
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func (v *AffineCached) FromP3(p *ProjP3) *AffineCached {
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v.YplusX.Add(&p.Y, &p.X)
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v.YplusX.Add(&p.Y, &p.X)
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v.YminusX.Sub(&p.Y, &p.X)
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v.YminusX.Sub(&p.Y, &p.X)
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v.T2d.Mul(&p.T, twoD)
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v.T2d.Mul(&p.T, D2)
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var invZ radix51.FieldElement
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var invZ radix51.FieldElement
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invZ.Invert(&p.Z)
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invZ.Invert(&p.Z)
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