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Name	Size	Permission
bn256.go	10.14 KB	-r--r--r--
bn256_test.go	6.54 KB	-r--r--r--
constants.go	2.41 KB	-r--r--r--
curve.go	5.55 KB	-r--r--r--
example_test.go	1.14 KB	-r--r--r--
gfp12.go	3.56 KB	-r--r--r--
gfp2.go	3.7 KB	-r--r--r--
gfp6.go	5.64 KB	-r--r--r--
optate.go	8.46 KB	-r--r--r--
twist.go	5.38 KB	-r--r--r--

Code Editor : example_test.go

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bn256

import (
	"crypto/rand"
)

func ExamplePair() {
	// This implements the tripartite Diffie-Hellman algorithm from "A One
	// Round Protocol for Tripartite Diffie-Hellman", A. Joux.
	// http://www.springerlink.com/content/cddc57yyva0hburb/fulltext.pdf

// Each of three parties, a, b and c, generate a private value.
	a, _ := rand.Int(rand.Reader, Order)
	b, _ := rand.Int(rand.Reader, Order)
	c, _ := rand.Int(rand.Reader, Order)

// Then each party calculates g₁ and g₂ times their private value.
	pa := new(G1).ScalarBaseMult(a)
	qa := new(G2).ScalarBaseMult(a)

pb := new(G1).ScalarBaseMult(b)
	qb := new(G2).ScalarBaseMult(b)

pc := new(G1).ScalarBaseMult(c)
	qc := new(G2).ScalarBaseMult(c)

// Now each party exchanges its public values with the other two and
	// all parties can calculate the shared key.
	k1 := Pair(pb, qc)
	k1.ScalarMult(k1, a)

k2 := Pair(pc, qa)
	k2.ScalarMult(k2, b)

k3 := Pair(pa, qb)
	k3.ScalarMult(k3, c)

// k1, k2 and k3 will all be equal.
}

${this.title}

Code Editor : example_test.go