@hpke/dhkem-x25519
Version:
A Hybrid Public Key Encryption (HPKE) module extension for X25519
85 lines (84 loc) • 2.95 kB
JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "@hpke/common", "./hkdfSha256.js", "./x25519.js"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.DhkemX25519HkdfSha256 = void 0;
const common_1 = require("@hpke/common");
const hkdfSha256_js_1 = require("./hkdfSha256.js");
const x25519_js_1 = require("./x25519.js");
/**
* The DHKEM(X25519, HKDF-SHA256) for HPKE KEM implementing {@link KemInterface}.
*
* This class is implemented using
* {@link https://github.com/paulmillr/noble-curves | @noble/curves}.
*
* The instance of this class can be specified to the
* {@link https://jsr.io/@hpke/core/doc/~/CipherSuiteParams | CipherSuiteParams} as follows:
*
* @example Use with `@hpke/core`:
*
* ```ts
* import {
* Aes128Gcm,
* CipherSuite,
* HkdfSha256,
* } from "@hpke/core";
* import { DhkemX25519HkdfSha256 } from "@hpke/dhkem-x25519";
*
* const suite = new CipherSuite({
* kem: new DhkemX25519HkdfSha256(),
* kdf: new HkdfSha256(),
* aead: new Aes128Gcm(),
* });
* ```
*/
class DhkemX25519HkdfSha256 extends common_1.Dhkem {
constructor() {
const kdf = new hkdfSha256_js_1.HkdfSha256();
super(common_1.KemId.DhkemX25519HkdfSha256, new x25519_js_1.X25519(kdf), kdf);
/** KemId.DhkemX25519HkdfSha256 (0x0020) */
Object.defineProperty(this, "id", {
enumerable: true,
configurable: true,
writable: true,
value: common_1.KemId.DhkemX25519HkdfSha256
});
/** 32 */
Object.defineProperty(this, "secretSize", {
enumerable: true,
configurable: true,
writable: true,
value: 32
});
/** 32 */
Object.defineProperty(this, "encSize", {
enumerable: true,
configurable: true,
writable: true,
value: 32
});
/** 32 */
Object.defineProperty(this, "publicKeySize", {
enumerable: true,
configurable: true,
writable: true,
value: 32
});
/** 32 */
Object.defineProperty(this, "privateKeySize", {
enumerable: true,
configurable: true,
writable: true,
value: 32
});
}
}
exports.DhkemX25519HkdfSha256 = DhkemX25519HkdfSha256;
});