How to use ecc-jsbn - 2 common examples

To help you get started, we’ve selected a few ecc-jsbn examples, based on popular ways it is used in public projects.

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github joyent / node-sshpk / lib / utils.js View on Github external
function publicFromPrivateECDSA(curveName, priv) {
	assert.string(curveName, 'curveName');
	assert.buffer(priv);
	var params = algs.curves[curveName];
	var p = new jsbn(params.p);
	var a = new jsbn(params.a);
	var b = new jsbn(params.b);
	var curve = new ec.ECCurveFp(p, a, b);
	var G = curve.decodePointHex(params.G.toString('hex'));

	var d = new jsbn(mpNormalize(priv));
	var pub = G.multiply(d);
	pub = Buffer.from(curve.encodePointHex(pub), 'hex');

	var parts = [];
	parts.push({name: 'curve', data: Buffer.from(curveName)});
	parts.push({name: 'Q', data: pub});

	var key = new Key({type: 'ecdsa', curve: curve, parts: parts});
	return (key);
}
github joyent / node-sshpk / lib / dhe.js View on Github external
function X9ECParameters(name) {
	var params = algs.curves[name];
	assert.object(params);

	var p = new jsbn(params.p);
	var a = new jsbn(params.a);
	var b = new jsbn(params.b);
	var n = new jsbn(params.n);
	var h = jsbn.ONE;
	var curve = new ec.ECCurveFp(p, a, b);
	var G = curve.decodePointHex(params.G.toString('hex'));

	this.curve = curve;
	this.g = G;
	this.n = n;
	this.h = h;
}
X9ECParameters.prototype.getCurve = function () { return (this.curve); };

ecc-jsbn

ECC JS code based on JSBN

MIT
Latest version published 6 years ago

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68 / 100
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Popular ecc-jsbn functions