@hpke/dhkem-x448
Advanced tools
Documentation: deno.land | pages (only for the latest ver.)
Using npm:
npm install @hpke/dhkem-x448
Using yarn:
yarn add @hpke/dhkem-x448
Starting from version 1.3.0, hpke-js packages are available from the JSR registry. From this version onwards, please use JSR import instead of HTTPS import in Deno.
JSR imoprt (recommended on >=1.3.0):
Add hpke-js packages using the commands below:
deno add @hpke/core
deno add @hpke/dhkem-x448
Then, you can use the module from code like this:
import { Aes256Gcm, CipherSuite, HkdfSha256 } from "@hpke/core";
import { DhkemX448HkdfSha512 } from "@hpke/dhkem-x448";
HTTPS imoprt (deprecated):
import { CipherSuite, HkdfSha256 } from "https://deno.land/x/hpke/core/mod.ts";
import { DhkemX448HkdfSha512 } from "https://deno.land/x/hpke/x/dhkem-x448/mod.ts";
Followings are how to use this module with typical CDNs. Other CDNs can be used as well.
Using esm.sh:
<!-- use a specific version -->
<script type="module">
import * as hpke from "https://esm.sh/@hpke/core@1.3.0";
import * as x448 from "https://esm.sh/@hpke/dhkem-x448@1.3.0";
// ...
</script>
<!-- use the latest stable version -->
<script type="module">
import * as hpke from "https://esm.sh/@hpke/core";
import * as x448 from "https://esm.sh/@hpke/dhkem-x448";
// ...
</script>
Using unpkg:
<!-- use a specific version -->
<script type="module">
import * as hpke from "https://unpkg.com/@hpke/core@1.3.0/esm/mod.js";
import * as x448 from "https://unpkg.com/@hpke/dhkem-x448@1.3.0/esm/mod.js";
// ...
</script>
git clone git@github.com:dajiaji/hpke-js.git
cd hpke-js/x/dhkem-x448
npm install -g esbuild
deno task dnt
deno task minify > $YOUR_SRC_PATH/hpke-dhkem-x448.js
This section shows some typical usage examples.
import { Aes256Gcm, CipherSuite, HkdfSha512 } from "@hpke/core";
import { DhkemX448HkdfSha512 } from "@hpke/dhkem-x448";
// const { DhkemX448HkdfSha512 } = require("@hpke/dhkem-x448");
async function doHpke() {
// setup
const suite = new CipherSuite({
kem: new DhkemX448HkdfSha512(),
kdf: new HkdfSha512(),
aead: new Aes256Gcm(),
});
const rkp = await suite.kem.generateKeyPair();
const sender = await suite.createSenderContext({
recipientPublicKey: rkp.publicKey,
});
// encrypt
const ct = await sender.seal(new TextEncoder().encode("Hello world!"));
const recipient = await suite.createRecipientContext({
recipientKey: rkp.privateKey,
enc: sender.enc,
});
// decrypt
const pt = await recipient.open(ct);
// Hello world!
console.log(new TextDecoder().decode(pt));
}
try {
doHpke();
} catch (err) {
console.log("failed:", err.message);
}
import { Aes256Gcm, CipherSuite, HkdfSha512 } from "@hpke/core";
import { DhkemX448HkdfSha512 } from "@hpke/dhkem-x448";
async function doHpke() {
// setup
const suite = new CipherSuite({
kem: new DhkemX448HkdfSha512(),
kdf: new HkdfSha512(),
aead: new Aes256Gcm(),
});
const rkp = await suite.kem.generateKeyPair();
const sender = await suite.createSenderContext({
recipientPublicKey: rkp.publicKey,
});
// encrypt
const ct = await sender.seal(new TextEncoder().encode("Hello world!"));
const recipient = await suite.createRecipientContext({
recipientKey: rkp.privateKey,
enc: sender.enc,
});
// decrypt
const pt = await recipient.open(ct);
// Hello world!
console.log(new TextDecoder().decode(pt));
}
try {
doHpke();
} catch (_err: unknown) {
console.log("failed.");
}
<html>
<head></head>
<body>
<script type="module">
import { Aes256Gcm, CipherSuite, HkdfSha512 } from "https://esm.sh/@hpke/core@1.3.0";
import { DhkemX448HkdfSha512 } from "https://esm.sh/@hpke/dhkem-x448@1.3.0";
globalThis.doHpke = async () => {
try {
const suite = new CipherSuite({
kem: new DhkemX448HkdfSha512(),
kdf: new HkdfSha512(),
aead: new Aes256Gcm(),
});
const rkp = await suite.kem.generateKeyPair();
const sender = await suite.createSenderContext({
recipientPublicKey: rkp.publicKey
});
// encrypt
const ct = await sender.seal(new TextEncoder().encode("Hello world!"));
const recipient = await suite.createRecipientContext({
recipientKey: rkp.privateKey, // rkp (CryptoKeyPair) is also acceptable.
enc: sender.enc,
});
// decrypt
const pt = await recipient.open(ct);
// Hello world!
alert(new TextDecoder().decode(pt));
} catch (err) {
alert("failed:", err);
}
}
</script>
<button type="button" onclick="doHpke()">do HPKE</button>
</body>
</html>
We welcome all kind of contributions, filing issues, suggesting new features or sending PRs.
Version 1.3.0
Released 2024-08-31
FAQs
A Hybrid Public Key Encryption (HPKE) module extension for X448
The npm package @hpke/dhkem-x448 receives a total of 13,241 weekly downloads. As such, @hpke/dhkem-x448 popularity was classified as popular.
We found that @hpke/dhkem-x448 demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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