arnaucube/shamirsecretsharing
1
0
Fork 0
mirror of https://github.com/arnaucube/shamirsecretsharing.git synced 2026-02-07 03:26:45 +01:00
Code Issues Packages Projects Releases Wiki Activity

add Rust implementation, reorganize directories

Browse Source
This commit is contained in:
arnaucube
2019-07-12 19:18:15 +02:00
parent 9d84e20a5f
commit 11b4c8ed9f
22 changed files with 1919 additions and 102 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
go-shamirsecretsharing/wasm/.gitignore vendored Normal file
View File

@@ -0,0 +1,3 @@
node_modules
package-lock.json
wasm_exec.js

23
go-shamirsecretsharing/wasm/index.html Normal file
View File

@@ -0,0 +1,23 @@
<html>
<head>
<meta charset="utf-8">
<title>shamirsecretsharing wasm</title>
</head>
<body>
<script src="wasm_exec.js"></script>
<script>
const go = new Go();
WebAssembly.instantiateStreaming(fetch('shamirsecretsharing.wasm'), go.importObject).then(function(dat) {
go.run(dat.instance);
});
</script>
<input id="secret" value="123456789" title="secret" />
<input id="nShares" value="5" title="nShares" />
<input id="nNeededShares" value="3" title="nNeededShares" />
<input id="p" value="171879804367519690300554482894542984104793303095416535421575087397479872914568537681950898838967105588522810694196545562424558060609619552125935120277761650477937931034625352827489211639332858312433285611335853953593672332879461761823122965792721080501957411113790396112857552217933702513677475650967659977873" title="random p" />
<button onClick="callCreateShares();">Create Shares</button>
<textarea id="sharesResult" rows="15" style="width: 80%;">
</textarea>
<script src="index.js"></script>
</body>
</html>

10
go-shamirsecretsharing/wasm/index.js Normal file
View File

@@ -0,0 +1,10 @@
function callCreateShares() {
let secret = document.getElementById("secret").value;
let nShares = document.getElementById("nShares").value;
let nNeededShares = document.getElementById("nNeededShares").value;
let p = document.getElementById("p").value;
console.log(p)
let r = createShares(nNeededShares, nShares, p, secret);
console.log("r", r);
}

15
go-shamirsecretsharing/wasm/package.json Normal file
View File

@@ -0,0 +1,15 @@
{
"name": "server",
"version": "1.0.0",
"description": "",
"main": "server.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node server.js"
},
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.16.4"
}
}

7
go-shamirsecretsharing/wasm/server.js Normal file
View File

@@ -0,0 +1,7 @@
var express = require('express');
var app = express();
express.static.mime.types['wasm'] = 'application/wasm';
app.use(express.static(__dirname + '/'));
port=8080
app.listen(8080);
console.log("server running at :8080")

101
go-shamirsecretsharing/wasm/shamirsecretsharing-wasm-wrapper.go Normal file
View File

@@ -0,0 +1,101 @@
package main
import (
"math/big"
"syscall/js"
"github.com/arnaucube/shamirsecretsharing"
)
func main() {
c := make(chan struct{}, 0)
println("WASM Go Initialized")
// register functions
registerCallbacks()
<-c
}
func registerCallbacks() {
js.Global().Set("createShares", js.FuncOf(createShares))
js.Global().Set("lagrangeInterpolation", js.FuncOf(lagrangeInterpolation))
}
func createShares(this js.Value, i []js.Value) interface{} {
nNeededShares, ok := new(big.Int).SetString(i[0].String(), 10)
if !ok {
println("error parsing parameter in position 0")
}
nShares, ok := new(big.Int).SetString(i[1].String(), 10)
if !ok {
println("error parsing parameter in position 1")
}
p, ok := new(big.Int).SetString(i[2].String(), 10)
if !ok {
println("error parsing parameter in position 2")
}
// bits := 2048
// p, err := rand.Prime(rand.Reader, bits/2) // move this out from wasm, it tooks too much time
// if err != nil {
// println(err.Error())
// }
k, ok := new(big.Int).SetString(i[3].String(), 10)
if !ok {
println("error parsing parameter in position 3")
}
println("nNeededShares", nNeededShares.String())
println("nShares", nShares.String())
println("p", p.String())
println("k (secret)", k.String())
shares, err := shamirsecretsharing.Create(nNeededShares, nShares, p, k)
if err != nil {
println("error generating the shares")
println(err.Error())
}
println("shares", shares)
sharesStr := sharesToString(shares)
println("sharesStr", sharesStr)
return js.ValueOf(sharesStr)
}
func sharesToString(shares [][]*big.Int) []string {
var printString string
var s []string
for i := 0; i < len(shares); i++ {
s = append(s, shares[i][0].String())
s = append(s, shares[i][1].String())
printString = printString + "[" + shares[i][0].String() + ", " + shares[i][1].String() + "]\n"
println(shares[i][0].String())
println(shares[i][1].String())
}
js.Global().Get("document").Call("getElementById", "sharesResult").Set("innerHTML", printString)
return s
}
func lagrangeInterpolation(this js.Value, i []js.Value) interface{} {
p, ok := new(big.Int).SetString(i[0].String(), 10)
if !ok {
println("error parsing parameter in position 0 (p)")
}
// parse the shares array
var shares [][]*big.Int
for n := 1; n < len(i); n = n + 2 {
a, ok := new(big.Int).SetString(i[n].String(), 10)
if !ok {
println("error parsing parameter in position ", n)
}
b, ok := new(big.Int).SetString(i[n+1].String(), 10)
if !ok {
println("error parsing parameter in position ", n+1)
}
var share []*big.Int
share = append(share, a)
share = append(share, b)
shares = append(shares, share)
}
secr := shamirsecretsharing.LagrangeInterpolation(p, shares)
println(secr.String())
return js.ValueOf(secr)
}

BIN
go-shamirsecretsharing/wasm/shamirsecretsharing.wasm Executable file
View File

Binary file not shown.