secret-sharing.js
Version:
Shamir's Secret Sharing Scheme for javascript - https://www.virtualcapitalofamerica.com
141 lines (100 loc) • 4.88 kB
JavaScript
/*jslint passfail: false, bitwise: true, todo: false, maxerr: 1000 */
/*global secrets, describe, xdescribe, it, xit, expect, beforeEach, afterEach, Uint32Array */
describe("Secrets private function", function () {
"use strict";
describe("padLeft()", function () {
beforeEach(function () {
secrets.init();
secrets.setRNG("testRandom");
});
it("without specifying bits of padding it should default to config.bits", function () {
secrets.init(10);
var str = "abc123";
expect(secrets._padLeft(str)).toEqual("0000abc123");
expect(secrets._padLeft(str).length).toEqual(10);
});
it("with null bits of padding it should default to config.bits", function () {
secrets.init(10);
var str = "abc123";
expect(secrets._padLeft(str, null)).toEqual("0000abc123");
expect(secrets._padLeft(str, null).length).toEqual(10);
});
it("with zero bits of padding", function () {
var str = "abc123";
expect(secrets._padLeft(str, 0)).toEqual("abc123");
expect(secrets._padLeft(str, 0).length).toEqual(6);
});
it("with 1 bit of padding", function () {
var str = "abc123";
expect(secrets._padLeft(str, 1)).toEqual("abc123");
expect(secrets._padLeft(str, 1).length).toEqual(6);
});
it("with a value that is shorter than bits", function () {
var str = "abc123";
expect(secrets._padLeft(str, 32)).toEqual("00000000000000000000000000abc123");
expect(secrets._padLeft(str, 32).length).toEqual(32);
});
it("with a value that is equal in size to bits", function () {
var str = "01234567890123456789012345678901";
expect(secrets._padLeft(str, 32)).toEqual("01234567890123456789012345678901");
expect(secrets._padLeft(str, 32).length).toEqual(32);
});
it("with a value that is larger than bits", function () {
var str = "0123456789012345678901234567890123456789";
expect(secrets._padLeft(str, 32)).toEqual("0000000000000000000000000123456789012345678901234567890123456789");
expect(secrets._padLeft(str, 32).length).toEqual(64);
});
it("with bits set to the max of 1024", function () {
var str = "0123456789012345678901234567890123456789";
expect(secrets._padLeft(str, 1024).length).toEqual(1024);
});
it("unless bits set greater than the max of 1024", function () {
expect(function () {
secrets._padLeft("abc123", 1025);
}).toThrowError("Padding must be multiples of no larger than 1024 bits.");
});
});
describe("hex2bin()", function () {
});
describe("bin2hex()", function () {
});
describe("getRNG()", function () {
});
describe("isSetRNG()", function () {
});
describe("splitNumStringToIntArray()", function () {
});
describe("horner()", function () {
});
describe("lagrange()", function () {
});
describe("getShares()", function () {
});
describe("constructPublicShareString()", function () {
it("should construct a well formed 3 bit share", function () {
expect(secrets._constructPublicShareString(3, 1, "ffff")).toEqual("31ffff");
});
it("should construct a well formed 8 bit share", function () {
expect(secrets._constructPublicShareString(8, 1, "ffff")).toEqual("801ffff");
});
it("should construct a well formed 20 bit share", function () {
expect(secrets._constructPublicShareString(20, 1024, "ffff")).toEqual("K01024ffff");
});
it("should construct a well formed 20 bit share with bits as a string", function () {
expect(secrets._constructPublicShareString("20", 1024, "ffff")).toEqual("K01024ffff");
});
it("should construct a well formed 20 bit share with ID as a string", function () {
expect(secrets._constructPublicShareString(20, "1024", "ffff")).toEqual("K01024ffff");
});
it("unless id < 1", function () {
expect(function () {
secrets._constructPublicShareString(8, 0, "ffff");
}).toThrowError("Share id must be an integer between 1 and 255, inclusive.");
});
it("unless id > 255", function () {
expect(function () {
secrets._constructPublicShareString(8, 256, "ffff");
}).toThrowError("Share id must be an integer between 1 and 255, inclusive.");
});
});
});