@gaonengwww/jose
Version:
JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes
1,500 lines (1,466 loc) • 45.1 kB
JavaScript
"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
// src/jwe/compact/encrypt.ts
var encrypt_exports = {};
__export(encrypt_exports, {
CompactEncrypt: () => CompactEncrypt
});
module.exports = __toCommonJS(encrypt_exports);
// src/lib/buffer_utils.ts
var encoder = new TextEncoder();
var decoder = new TextDecoder();
var MAX_INT32 = 2 ** 32;
function concat(...buffers) {
const size = buffers.reduce((acc, { length }) => acc + length, 0);
const buf = new Uint8Array(size);
let i = 0;
for (const buffer of buffers) {
buf.set(buffer, i);
i += buffer.length;
}
return buf;
}
function writeUInt32BE(buf, value, offset) {
if (value < 0 || value >= MAX_INT32) {
throw new RangeError(`value must be >= 0 and <= ${MAX_INT32 - 1}. Received ${value}`);
}
buf.set([value >>> 24, value >>> 16, value >>> 8, value & 255], offset);
}
function uint64be(value) {
const high = Math.floor(value / MAX_INT32);
const low = value % MAX_INT32;
const buf = new Uint8Array(8);
writeUInt32BE(buf, high, 0);
writeUInt32BE(buf, low, 4);
return buf;
}
function uint32be(value) {
const buf = new Uint8Array(4);
writeUInt32BE(buf, value);
return buf;
}
// src/lib/base64.ts
function encodeBase64(input) {
if (Uint8Array.prototype.toBase64) {
return input.toBase64();
}
const CHUNK_SIZE = 32768;
const arr = [];
for (let i = 0; i < input.length; i += CHUNK_SIZE) {
arr.push(String.fromCharCode.apply(null, input.subarray(i, i + CHUNK_SIZE)));
}
return btoa(arr.join(""));
}
function decodeBase64(encoded) {
if (Uint8Array.fromBase64) {
return Uint8Array.fromBase64(encoded);
}
const binary = atob(encoded);
const bytes = new Uint8Array(binary.length);
for (let i = 0; i < binary.length; i++) {
bytes[i] = binary.charCodeAt(i);
}
return bytes;
}
// src/util/base64url.ts
function decode(input) {
if (Uint8Array.fromBase64) {
return Uint8Array.fromBase64(typeof input === "string" ? input : decoder.decode(input), {
alphabet: "base64url"
});
}
let encoded = input;
if (encoded instanceof Uint8Array) {
encoded = decoder.decode(encoded);
}
encoded = encoded.replace(/-/g, "+").replace(/_/g, "/").replace(/\s/g, "");
try {
return decodeBase64(encoded);
} catch {
throw new TypeError("The input to be decoded is not correctly encoded.");
}
}
function encode(input) {
let unencoded = input;
if (typeof unencoded === "string") {
unencoded = encoder.encode(unencoded);
}
if (Uint8Array.prototype.toBase64) {
return unencoded.toBase64({ alphabet: "base64url", omitPadding: true });
}
return encodeBase64(unencoded).replace(/=/g, "").replace(/\+/g, "-").replace(/\//g, "_");
}
// src/lib/private_symbols.ts
var unprotected = Symbol();
// src/util/errors.ts
var JOSEError = class extends Error {
/**
* A unique error code for the particular error subclass.
*
* @ignore
*/
static code = "ERR_JOSE_GENERIC";
/** A unique error code for {@link JOSEError}. */
code = "ERR_JOSE_GENERIC";
/** @ignore */
constructor(message2, options) {
super(message2, options);
this.name = this.constructor.name;
Error.captureStackTrace?.(this, this.constructor);
}
};
var JOSENotSupported = class extends JOSEError {
/** @ignore */
static code = "ERR_JOSE_NOT_SUPPORTED";
/** A unique error code for {@link JOSENotSupported}. */
code = "ERR_JOSE_NOT_SUPPORTED";
};
var JWEInvalid = class extends JOSEError {
/** @ignore */
static code = "ERR_JWE_INVALID";
/** A unique error code for {@link JWEInvalid}. */
code = "ERR_JWE_INVALID";
};
// src/lib/iv.ts
function bitLength(alg) {
switch (alg) {
case "A128GCM":
case "A128GCMKW":
case "A192GCM":
case "A192GCMKW":
case "A256GCM":
case "A256GCMKW":
return 96;
case "A128CBC-HS256":
case "A192CBC-HS384":
case "A256CBC-HS512":
return 128;
default:
throw new JOSENotSupported(`Unsupported JWE Algorithm: ${alg}`);
}
}
var iv_default = (alg) => crypto.getRandomValues(new Uint8Array(bitLength(alg) >> 3));
// src/lib/check_iv_length.ts
var check_iv_length_default = (enc, iv) => {
if (iv.length << 3 !== bitLength(enc)) {
throw new JWEInvalid("Invalid Initialization Vector length");
}
};
// src/lib/check_cek_length.ts
var check_cek_length_default = (cek, expected) => {
const actual = cek.byteLength << 3;
if (actual !== expected) {
throw new JWEInvalid(
`Invalid Content Encryption Key length. Expected ${expected} bits, got ${actual} bits`
);
}
};
// src/lib/crypto_key.ts
function unusable(name, prop = "algorithm.name") {
return new TypeError(`CryptoKey does not support this operation, its ${prop} must be ${name}`);
}
function isAlgorithm(algorithm, name) {
return algorithm.name === name;
}
function getHashLength(hash) {
return parseInt(hash.name.slice(4), 10);
}
function checkUsage(key, usage) {
if (usage && !key.usages.includes(usage)) {
throw new TypeError(
`CryptoKey does not support this operation, its usages must include ${usage}.`
);
}
}
function checkEncCryptoKey(key, alg, usage) {
switch (alg) {
case "A128GCM":
case "A192GCM":
case "A256GCM": {
if (!isAlgorithm(key.algorithm, "AES-GCM")) throw unusable("AES-GCM");
const expected = parseInt(alg.slice(1, 4), 10);
const actual = key.algorithm.length;
if (actual !== expected) throw unusable(expected, "algorithm.length");
break;
}
case "A128KW":
case "A192KW":
case "A256KW": {
if (!isAlgorithm(key.algorithm, "AES-KW")) throw unusable("AES-KW");
const expected = parseInt(alg.slice(1, 4), 10);
const actual = key.algorithm.length;
if (actual !== expected) throw unusable(expected, "algorithm.length");
break;
}
case "ECDH": {
switch (key.algorithm.name) {
case "ECDH":
case "X25519":
break;
default:
throw unusable("ECDH or X25519");
}
break;
}
case "PBES2-HS256+A128KW":
case "PBES2-HS384+A192KW":
case "PBES2-HS512+A256KW":
if (!isAlgorithm(key.algorithm, "PBKDF2")) throw unusable("PBKDF2");
break;
case "RSA-OAEP":
case "RSA-OAEP-256":
case "RSA-OAEP-384":
case "RSA-OAEP-512": {
if (!isAlgorithm(key.algorithm, "RSA-OAEP")) throw unusable("RSA-OAEP");
const expected = parseInt(alg.slice(9), 10) || 1;
const actual = getHashLength(key.algorithm.hash);
if (actual !== expected) throw unusable(`SHA-${expected}`, "algorithm.hash");
break;
}
default:
throw new TypeError("CryptoKey does not support this operation");
}
checkUsage(key, usage);
}
// src/lib/invalid_key_input.ts
function message(msg, actual, ...types) {
types = types.filter(Boolean);
if (types.length > 2) {
const last = types.pop();
msg += `one of type ${types.join(", ")}, or ${last}.`;
} else if (types.length === 2) {
msg += `one of type ${types[0]} or ${types[1]}.`;
} else {
msg += `of type ${types[0]}.`;
}
if (actual == null) {
msg += ` Received ${actual}`;
} else if (typeof actual === "function" && actual.name) {
msg += ` Received function ${actual.name}`;
} else if (typeof actual === "object" && actual != null) {
if (actual.constructor?.name) {
msg += ` Received an instance of ${actual.constructor.name}`;
}
}
return msg;
}
var invalid_key_input_default = (actual, ...types) => {
return message("Key must be ", actual, ...types);
};
function withAlg(alg, actual, ...types) {
return message(`Key for the ${alg} algorithm must be `, actual, ...types);
}
// src/lib/is_key_like.ts
function assertCryptoKey(key) {
if (!isCryptoKey(key)) {
throw new Error("CryptoKey instance expected");
}
}
function isCryptoKey(key) {
return key?.[Symbol.toStringTag] === "CryptoKey";
}
function isKeyObject(key) {
return key?.[Symbol.toStringTag] === "KeyObject";
}
var is_key_like_default = (key) => {
return isCryptoKey(key) || isKeyObject(key);
};
// src/lib/encrypt.ts
async function cbcEncrypt(enc, plaintext, cek, iv, aad) {
if (!(cek instanceof Uint8Array)) {
throw new TypeError(invalid_key_input_default(cek, "Uint8Array"));
}
const keySize = parseInt(enc.slice(1, 4), 10);
const encKey = await crypto.subtle.importKey(
"raw",
cek.subarray(keySize >> 3),
"AES-CBC",
false,
["encrypt"]
);
const macKey = await crypto.subtle.importKey(
"raw",
cek.subarray(0, keySize >> 3),
{
hash: `SHA-${keySize << 1}`,
name: "HMAC"
},
false,
["sign"]
);
const ciphertext = new Uint8Array(
await crypto.subtle.encrypt(
{
iv,
name: "AES-CBC"
},
encKey,
plaintext
)
);
const macData = concat(aad, iv, ciphertext, uint64be(aad.length << 3));
const tag2 = new Uint8Array(
(await crypto.subtle.sign("HMAC", macKey, macData)).slice(0, keySize >> 3)
);
return { ciphertext, tag: tag2, iv };
}
async function gcmEncrypt(enc, plaintext, cek, iv, aad) {
let encKey;
if (cek instanceof Uint8Array) {
encKey = await crypto.subtle.importKey("raw", cek, "AES-GCM", false, ["encrypt"]);
} else {
checkEncCryptoKey(cek, enc, "encrypt");
encKey = cek;
}
const encrypted = new Uint8Array(
await crypto.subtle.encrypt(
{
additionalData: aad,
iv,
name: "AES-GCM",
tagLength: 128
},
encKey,
plaintext
)
);
const tag2 = encrypted.slice(-16);
const ciphertext = encrypted.slice(0, -16);
return { ciphertext, tag: tag2, iv };
}
var encrypt_default = async (enc, plaintext, cek, iv, aad) => {
if (!isCryptoKey(cek) && !(cek instanceof Uint8Array)) {
throw new TypeError(
invalid_key_input_default(cek, "CryptoKey", "KeyObject", "Uint8Array", "JSON Web Key")
);
}
if (iv) {
check_iv_length_default(enc, iv);
} else {
iv = iv_default(enc);
}
switch (enc) {
case "A128CBC-HS256":
case "A192CBC-HS384":
case "A256CBC-HS512":
if (cek instanceof Uint8Array) {
check_cek_length_default(cek, parseInt(enc.slice(-3), 10));
}
return cbcEncrypt(enc, plaintext, cek, iv, aad);
case "A128GCM":
case "A192GCM":
case "A256GCM":
if (cek instanceof Uint8Array) {
check_cek_length_default(cek, parseInt(enc.slice(1, 4), 10));
}
return gcmEncrypt(enc, plaintext, cek, iv, aad);
default:
throw new JOSENotSupported("Unsupported JWE Content Encryption Algorithm");
}
};
// src/lib/aeskw.ts
function checkKeySize(key, alg) {
if (key.algorithm.length !== parseInt(alg.slice(1, 4), 10)) {
throw new TypeError(`Invalid key size for alg: ${alg}`);
}
}
function getCryptoKey(key, alg, usage) {
if (key instanceof Uint8Array) {
return crypto.subtle.importKey("raw", key, "AES-KW", true, [usage]);
}
checkEncCryptoKey(key, alg, usage);
return key;
}
async function wrap(alg, key, cek) {
const cryptoKey = await getCryptoKey(key, alg, "wrapKey");
checkKeySize(cryptoKey, alg);
const cryptoKeyCek = await crypto.subtle.importKey(
"raw",
cek,
{ hash: "SHA-256", name: "HMAC" },
true,
["sign"]
);
return new Uint8Array(await crypto.subtle.wrapKey("raw", cryptoKeyCek, cryptoKey, "AES-KW"));
}
// src/lib/digest.ts
var digest_default = async (algorithm, data) => {
const subtleDigest = `SHA-${algorithm.slice(-3)}`;
return new Uint8Array(await crypto.subtle.digest(subtleDigest, data));
};
// src/lib/ecdhes.ts
function lengthAndInput(input) {
return concat(uint32be(input.length), input);
}
async function concatKdf(secret, bits, value) {
const iterations = Math.ceil((bits >> 3) / 32);
const res = new Uint8Array(iterations * 32);
for (let iter = 0; iter < iterations; iter++) {
const buf = new Uint8Array(4 + secret.length + value.length);
buf.set(uint32be(iter + 1));
buf.set(secret, 4);
buf.set(value, 4 + secret.length);
res.set(await digest_default("sha256", buf), iter * 32);
}
return res.slice(0, bits >> 3);
}
async function deriveKey(publicKey, privateKey, algorithm, keyLength, apu = new Uint8Array(0), apv = new Uint8Array(0)) {
checkEncCryptoKey(publicKey, "ECDH");
checkEncCryptoKey(privateKey, "ECDH", "deriveBits");
const value = concat(
lengthAndInput(encoder.encode(algorithm)),
lengthAndInput(apu),
lengthAndInput(apv),
uint32be(keyLength)
);
let length;
if (publicKey.algorithm.name === "X25519") {
length = 256;
} else {
length = Math.ceil(parseInt(publicKey.algorithm.namedCurve.slice(-3), 10) / 8) << 3;
}
const sharedSecret = new Uint8Array(
await crypto.subtle.deriveBits(
{
name: publicKey.algorithm.name,
public: publicKey
},
privateKey,
length
)
);
return concatKdf(sharedSecret, keyLength, value);
}
function allowed(key) {
switch (key.algorithm.namedCurve) {
case "P-256":
case "P-384":
case "P-521":
return true;
default:
return key.algorithm.name === "X25519";
}
}
// src/lib/pbes2kw.ts
function getCryptoKey2(key, alg) {
if (key instanceof Uint8Array) {
return crypto.subtle.importKey("raw", key, "PBKDF2", false, ["deriveBits"]);
}
checkEncCryptoKey(key, alg, "deriveBits");
return key;
}
var concatSalt = (alg, p2sInput) => concat(encoder.encode(alg), new Uint8Array([0]), p2sInput);
async function deriveKey2(p2s, alg, p2c, key) {
if (!(p2s instanceof Uint8Array) || p2s.length < 8) {
throw new JWEInvalid("PBES2 Salt Input must be 8 or more octets");
}
const salt = concatSalt(alg, p2s);
const keylen = parseInt(alg.slice(13, 16), 10);
const subtleAlg = {
hash: `SHA-${alg.slice(8, 11)}`,
iterations: p2c,
name: "PBKDF2",
salt
};
const cryptoKey = await getCryptoKey2(key, alg);
return new Uint8Array(await crypto.subtle.deriveBits(subtleAlg, cryptoKey, keylen));
}
async function wrap2(alg, key, cek, p2c = 2048, p2s = crypto.getRandomValues(new Uint8Array(16))) {
const derived = await deriveKey2(p2s, alg, p2c, key);
const encryptedKey = await wrap(alg.slice(-6), derived, cek);
return { encryptedKey, p2c, p2s: encode(p2s) };
}
// src/lib/check_key_length.ts
var check_key_length_default = (alg, key) => {
if (alg.startsWith("RS") || alg.startsWith("PS")) {
const { modulusLength } = key.algorithm;
if (typeof modulusLength !== "number" || modulusLength < 2048) {
throw new TypeError(`${alg} requires key modulusLength to be 2048 bits or larger`);
}
}
};
// src/lib/rsaes.ts
var subtleAlgorithm = (alg) => {
switch (alg) {
case "RSA-OAEP":
case "RSA-OAEP-256":
case "RSA-OAEP-384":
case "RSA-OAEP-512":
return "RSA-OAEP";
default:
throw new JOSENotSupported(
`alg ${alg} is not supported either by JOSE or your javascript runtime`
);
}
};
async function encrypt(alg, key, cek) {
checkEncCryptoKey(key, alg, "encrypt");
check_key_length_default(alg, key);
return new Uint8Array(await crypto.subtle.encrypt(subtleAlgorithm(alg), key, cek));
}
// src/lib/is_object.ts
function isObjectLike(value) {
return typeof value === "object" && value !== null;
}
var is_object_default = (input) => {
if (!isObjectLike(input) || Object.prototype.toString.call(input) !== "[object Object]") {
return false;
}
if (Object.getPrototypeOf(input) === null) {
return true;
}
let proto = input;
while (Object.getPrototypeOf(proto) !== null) {
proto = Object.getPrototypeOf(proto);
}
return Object.getPrototypeOf(input) === proto;
};
// src/lib/is_jwk.ts
function isJWK(key) {
return is_object_default(key) && typeof key.kty === "string";
}
function isPrivateJWK(key) {
return key.kty !== "oct" && typeof key.d === "string";
}
function isPublicJWK(key) {
return key.kty !== "oct" && typeof key.d === "undefined";
}
function isSecretJWK(key) {
return key.kty === "oct" && typeof key.k === "string";
}
// src/lib/jwk_to_key.ts
function subtleMapping(jwk) {
let algorithm;
let keyUsages;
switch (jwk.kty) {
case "RSA": {
switch (jwk.alg) {
case "PS256":
case "PS384":
case "PS512":
algorithm = { name: "RSA-PSS", hash: `SHA-${jwk.alg.slice(-3)}` };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "RS256":
case "RS384":
case "RS512":
algorithm = { name: "RSASSA-PKCS1-v1_5", hash: `SHA-${jwk.alg.slice(-3)}` };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "RSA-OAEP":
case "RSA-OAEP-256":
case "RSA-OAEP-384":
case "RSA-OAEP-512":
algorithm = {
name: "RSA-OAEP",
hash: `SHA-${parseInt(jwk.alg.slice(-3), 10) || 1}`
};
keyUsages = jwk.d ? ["decrypt", "unwrapKey"] : ["encrypt", "wrapKey"];
break;
default:
throw new JOSENotSupported('Invalid or unsupported JWK "alg" (Algorithm) Parameter value');
}
break;
}
case "EC": {
switch (jwk.alg) {
case "ES256":
algorithm = { name: "ECDSA", namedCurve: "P-256" };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "ES384":
algorithm = { name: "ECDSA", namedCurve: "P-384" };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "ES512":
algorithm = { name: "ECDSA", namedCurve: "P-521" };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "ECDH-ES":
case "ECDH-ES+A128KW":
case "ECDH-ES+A192KW":
case "ECDH-ES+A256KW":
algorithm = { name: "ECDH", namedCurve: jwk.crv };
keyUsages = jwk.d ? ["deriveBits"] : [];
break;
default:
throw new JOSENotSupported('Invalid or unsupported JWK "alg" (Algorithm) Parameter value');
}
break;
}
case "OKP": {
switch (jwk.alg) {
case "Ed25519":
// Fall through
case "EdDSA":
algorithm = { name: "Ed25519" };
keyUsages = jwk.d ? ["sign"] : ["verify"];
break;
case "ECDH-ES":
case "ECDH-ES+A128KW":
case "ECDH-ES+A192KW":
case "ECDH-ES+A256KW":
algorithm = { name: jwk.crv };
keyUsages = jwk.d ? ["deriveBits"] : [];
break;
default:
throw new JOSENotSupported('Invalid or unsupported JWK "alg" (Algorithm) Parameter value');
}
break;
}
default:
throw new JOSENotSupported('Invalid or unsupported JWK "kty" (Key Type) Parameter value');
}
return { algorithm, keyUsages };
}
var jwk_to_key_default = async (jwk) => {
if (!jwk.alg) {
throw new TypeError('"alg" argument is required when "jwk.alg" is not present');
}
const { algorithm, keyUsages } = subtleMapping(jwk);
const keyData = { ...jwk };
delete keyData.alg;
delete keyData.use;
return crypto.subtle.importKey(
"jwk",
keyData,
algorithm,
jwk.ext ?? (jwk.d ? false : true),
jwk.key_ops ?? keyUsages
);
};
// src/lib/normalize_key.ts
var cache;
var handleJWK = async (key, jwk, alg, freeze = false) => {
cache ||= /* @__PURE__ */ new WeakMap();
let cached = cache.get(key);
if (cached?.[alg]) {
return cached[alg];
}
const cryptoKey = await jwk_to_key_default({ ...jwk, alg });
if (freeze) Object.freeze(key);
if (!cached) {
cache.set(key, { [alg]: cryptoKey });
} else {
cached[alg] = cryptoKey;
}
return cryptoKey;
};
var handleKeyObject = (keyObject, alg) => {
cache ||= /* @__PURE__ */ new WeakMap();
let cached = cache.get(keyObject);
if (cached?.[alg]) {
return cached[alg];
}
const isPublic = keyObject.type === "public";
const extractable = isPublic ? true : false;
let cryptoKey;
if (keyObject.asymmetricKeyType === "x25519") {
switch (alg) {
case "ECDH-ES":
case "ECDH-ES+A128KW":
case "ECDH-ES+A192KW":
case "ECDH-ES+A256KW":
break;
default:
throw new TypeError("given KeyObject instance cannot be used for this algorithm");
}
cryptoKey = keyObject.toCryptoKey(
keyObject.asymmetricKeyType,
extractable,
isPublic ? [] : ["deriveBits"]
);
}
if (keyObject.asymmetricKeyType === "ed25519") {
if (alg !== "EdDSA" && alg !== "Ed25519") {
throw new TypeError("given KeyObject instance cannot be used for this algorithm");
}
cryptoKey = keyObject.toCryptoKey(keyObject.asymmetricKeyType, extractable, [
isPublic ? "verify" : "sign"
]);
}
if (keyObject.asymmetricKeyType === "rsa") {
let hash;
switch (alg) {
case "RSA-OAEP":
hash = "SHA-1";
break;
case "RS256":
case "PS256":
case "RSA-OAEP-256":
hash = "SHA-256";
break;
case "RS384":
case "PS384":
case "RSA-OAEP-384":
hash = "SHA-384";
break;
case "RS512":
case "PS512":
case "RSA-OAEP-512":
hash = "SHA-512";
break;
default:
throw new TypeError("given KeyObject instance cannot be used for this algorithm");
}
if (alg.startsWith("RSA-OAEP")) {
return keyObject.toCryptoKey(
{
name: "RSA-OAEP",
hash
},
extractable,
isPublic ? ["encrypt"] : ["decrypt"]
);
}
cryptoKey = keyObject.toCryptoKey(
{
name: alg.startsWith("PS") ? "RSA-PSS" : "RSASSA-PKCS1-v1_5",
hash
},
extractable,
[isPublic ? "verify" : "sign"]
);
}
if (keyObject.asymmetricKeyType === "ec") {
const nist = /* @__PURE__ */ new Map([
["prime256v1", "P-256"],
["secp384r1", "P-384"],
["secp521r1", "P-521"]
]);
const namedCurve = nist.get(keyObject.asymmetricKeyDetails?.namedCurve);
if (!namedCurve) {
throw new TypeError("given KeyObject instance cannot be used for this algorithm");
}
if (alg === "ES256" && namedCurve === "P-256") {
cryptoKey = keyObject.toCryptoKey(
{
name: "ECDSA",
namedCurve
},
extractable,
[isPublic ? "verify" : "sign"]
);
}
if (alg === "ES384" && namedCurve === "P-384") {
cryptoKey = keyObject.toCryptoKey(
{
name: "ECDSA",
namedCurve
},
extractable,
[isPublic ? "verify" : "sign"]
);
}
if (alg === "ES512" && namedCurve === "P-521") {
cryptoKey = keyObject.toCryptoKey(
{
name: "ECDSA",
namedCurve
},
extractable,
[isPublic ? "verify" : "sign"]
);
}
if (alg.startsWith("ECDH-ES")) {
cryptoKey = keyObject.toCryptoKey(
{
name: "ECDH",
namedCurve
},
extractable,
isPublic ? [] : ["deriveBits"]
);
}
}
if (!cryptoKey) {
throw new TypeError("given KeyObject instance cannot be used for this algorithm");
}
if (!cached) {
cache.set(keyObject, { [alg]: cryptoKey });
} else {
cached[alg] = cryptoKey;
}
return cryptoKey;
};
var normalize_key_default = async (key, alg) => {
if (key instanceof Uint8Array) {
return key;
}
if (isCryptoKey(key)) {
return key;
}
if (isKeyObject(key)) {
if (key.type === "secret") {
return key.export();
}
if ("toCryptoKey" in key && typeof key.toCryptoKey === "function") {
try {
return handleKeyObject(key, alg);
} catch (err) {
if (err instanceof TypeError) {
throw err;
}
}
}
let jwk = key.export({ format: "jwk" });
return handleJWK(key, jwk, alg);
}
if (isJWK(key)) {
if (key.k) {
return decode(key.k);
}
return handleJWK(key, key, alg, true);
}
throw new Error("unreachable");
};
// src/lib/cek.ts
function bitLength2(alg) {
switch (alg) {
case "A128GCM":
return 128;
case "A192GCM":
return 192;
case "A256GCM":
case "A128CBC-HS256":
return 256;
case "A192CBC-HS384":
return 384;
case "A256CBC-HS512":
return 512;
default:
throw new JOSENotSupported(`Unsupported JWE Algorithm: ${alg}`);
}
}
var cek_default = (alg) => crypto.getRandomValues(new Uint8Array(bitLength2(alg) >> 3));
// src/lib/key_to_jwk.ts
async function keyToJWK(key) {
if (isKeyObject(key)) {
if (key.type === "secret") {
key = key.export();
} else {
return key.export({ format: "jwk" });
}
}
if (key instanceof Uint8Array) {
return {
kty: "oct",
k: encode(key)
};
}
if (!isCryptoKey(key)) {
throw new TypeError(invalid_key_input_default(key, "CryptoKey", "KeyObject", "Uint8Array"));
}
if (!key.extractable) {
throw new TypeError("non-extractable CryptoKey cannot be exported as a JWK");
}
const { ext, key_ops, alg, use, ...jwk } = await crypto.subtle.exportKey("jwk", key);
return jwk;
}
// src/key/export.ts
async function exportJWK(key) {
return keyToJWK(key);
}
// src/lib/aesgcmkw.ts
async function wrap3(alg, key, cek, iv) {
const jweAlgorithm = alg.slice(0, 7);
const wrapped = await encrypt_default(jweAlgorithm, cek, key, iv, new Uint8Array(0));
return {
encryptedKey: wrapped.ciphertext,
iv: encode(wrapped.iv),
tag: encode(wrapped.tag)
};
}
// src/lib/encrypt_key_management.ts
var encrypt_key_management_default = async (alg, enc, key, providedCek, providedParameters = {}) => {
let encryptedKey;
let parameters;
let cek;
switch (alg) {
case "dir": {
cek = key;
break;
}
case "ECDH-ES":
case "ECDH-ES+A128KW":
case "ECDH-ES+A192KW":
case "ECDH-ES+A256KW": {
assertCryptoKey(key);
if (!allowed(key)) {
throw new JOSENotSupported(
"ECDH with the provided key is not allowed or not supported by your javascript runtime"
);
}
const { apu, apv } = providedParameters;
let ephemeralKey;
if (providedParameters.epk) {
ephemeralKey = await normalize_key_default(providedParameters.epk, alg);
} else {
ephemeralKey = (await crypto.subtle.generateKey(key.algorithm, true, ["deriveBits"])).privateKey;
}
const { x, y, crv, kty } = await exportJWK(ephemeralKey);
const sharedSecret = await deriveKey(
key,
ephemeralKey,
alg === "ECDH-ES" ? enc : alg,
alg === "ECDH-ES" ? bitLength2(enc) : parseInt(alg.slice(-5, -2), 10),
apu,
apv
);
parameters = { epk: { x, crv, kty } };
if (kty === "EC") parameters.epk.y = y;
if (apu) parameters.apu = encode(apu);
if (apv) parameters.apv = encode(apv);
if (alg === "ECDH-ES") {
cek = sharedSecret;
break;
}
cek = providedCek || cek_default(enc);
const kwAlg = alg.slice(-6);
encryptedKey = await wrap(kwAlg, sharedSecret, cek);
break;
}
case "RSA-OAEP":
case "RSA-OAEP-256":
case "RSA-OAEP-384":
case "RSA-OAEP-512": {
cek = providedCek || cek_default(enc);
assertCryptoKey(key);
encryptedKey = await encrypt(alg, key, cek);
break;
}
case "PBES2-HS256+A128KW":
case "PBES2-HS384+A192KW":
case "PBES2-HS512+A256KW": {
cek = providedCek || cek_default(enc);
const { p2c, p2s } = providedParameters;
({ encryptedKey, ...parameters } = await wrap2(alg, key, cek, p2c, p2s));
break;
}
case "A128KW":
case "A192KW":
case "A256KW": {
cek = providedCek || cek_default(enc);
encryptedKey = await wrap(alg, key, cek);
break;
}
case "A128GCMKW":
case "A192GCMKW":
case "A256GCMKW": {
cek = providedCek || cek_default(enc);
const { iv } = providedParameters;
({ encryptedKey, ...parameters } = await wrap3(alg, key, cek, iv));
break;
}
default: {
throw new JOSENotSupported('Invalid or unsupported "alg" (JWE Algorithm) header value');
}
}
return { cek, encryptedKey, parameters };
};
// src/lib/is_disjoint.ts
var is_disjoint_default = (...headers) => {
const sources = headers.filter(Boolean);
if (sources.length === 0 || sources.length === 1) {
return true;
}
let acc;
for (const header of sources) {
const parameters = Object.keys(header);
if (!acc || acc.size === 0) {
acc = new Set(parameters);
continue;
}
for (const parameter of parameters) {
if (acc.has(parameter)) {
return false;
}
acc.add(parameter);
}
}
return true;
};
// src/lib/validate_crit.ts
var validate_crit_default = (Err, recognizedDefault, recognizedOption, protectedHeader, joseHeader) => {
if (joseHeader.crit !== void 0 && protectedHeader?.crit === void 0) {
throw new Err('"crit" (Critical) Header Parameter MUST be integrity protected');
}
if (!protectedHeader || protectedHeader.crit === void 0) {
return /* @__PURE__ */ new Set();
}
if (!Array.isArray(protectedHeader.crit) || protectedHeader.crit.length === 0 || protectedHeader.crit.some((input) => typeof input !== "string" || input.length === 0)) {
throw new Err(
'"crit" (Critical) Header Parameter MUST be an array of non-empty strings when present'
);
}
let recognized;
if (recognizedOption !== void 0) {
recognized = new Map([...Object.entries(recognizedOption), ...recognizedDefault.entries()]);
} else {
recognized = recognizedDefault;
}
for (const parameter of protectedHeader.crit) {
if (!recognized.has(parameter)) {
throw new JOSENotSupported(`Extension Header Parameter "${parameter}" is not recognized`);
}
if (joseHeader[parameter] === void 0) {
throw new Err(`Extension Header Parameter "${parameter}" is missing`);
}
if (recognized.get(parameter) && protectedHeader[parameter] === void 0) {
throw new Err(`Extension Header Parameter "${parameter}" MUST be integrity protected`);
}
}
return new Set(protectedHeader.crit);
};
// src/lib/check_key_type.ts
var tag = (key) => key?.[Symbol.toStringTag];
var jwkMatchesOp = (alg, key, usage) => {
if (key.use !== void 0) {
let expected;
switch (usage) {
case "sign":
case "verify":
expected = "sig";
break;
case "encrypt":
case "decrypt":
expected = "enc";
break;
}
if (key.use !== expected) {
throw new TypeError(
`Invalid key for this operation, its "use" must be "${expected}" when present`
);
}
}
if (key.alg !== void 0 && key.alg !== alg) {
throw new TypeError(`Invalid key for this operation, its "alg" must be "${alg}" when present`);
}
if (Array.isArray(key.key_ops)) {
let expectedKeyOp;
switch (true) {
case (usage === "sign" || usage === "verify"):
// Fall through
case alg === "dir":
// Fall through
case alg.includes("CBC-HS"):
expectedKeyOp = usage;
break;
case alg.startsWith("PBES2"):
expectedKeyOp = "deriveBits";
break;
case /^A\d{3}(?:GCM)?(?:KW)?$/.test(alg):
if (!alg.includes("GCM") && alg.endsWith("KW")) {
expectedKeyOp = usage === "encrypt" ? "wrapKey" : "unwrapKey";
} else {
expectedKeyOp = usage;
}
break;
case (usage === "encrypt" && alg.startsWith("RSA")):
expectedKeyOp = "wrapKey";
break;
case usage === "decrypt":
expectedKeyOp = alg.startsWith("RSA") ? "unwrapKey" : "deriveBits";
break;
}
if (expectedKeyOp && key.key_ops?.includes?.(expectedKeyOp) === false) {
throw new TypeError(
`Invalid key for this operation, its "key_ops" must include "${expectedKeyOp}" when present`
);
}
}
return true;
};
var symmetricTypeCheck = (alg, key, usage) => {
if (key instanceof Uint8Array) return;
if (isJWK(key)) {
if (isSecretJWK(key) && jwkMatchesOp(alg, key, usage)) return;
throw new TypeError(
`JSON Web Key for symmetric algorithms must have JWK "kty" (Key Type) equal to "oct" and the JWK "k" (Key Value) present`
);
}
if (!is_key_like_default(key)) {
throw new TypeError(
withAlg(alg, key, "CryptoKey", "KeyObject", "JSON Web Key", "Uint8Array")
);
}
if (key.type !== "secret") {
throw new TypeError(`${tag(key)} instances for symmetric algorithms must be of type "secret"`);
}
};
var asymmetricTypeCheck = (alg, key, usage) => {
if (isJWK(key)) {
switch (usage) {
case "decrypt":
case "sign":
if (isPrivateJWK(key) && jwkMatchesOp(alg, key, usage)) return;
throw new TypeError(`JSON Web Key for this operation be a private JWK`);
case "encrypt":
case "verify":
if (isPublicJWK(key) && jwkMatchesOp(alg, key, usage)) return;
throw new TypeError(`JSON Web Key for this operation be a public JWK`);
}
}
if (!is_key_like_default(key)) {
throw new TypeError(withAlg(alg, key, "CryptoKey", "KeyObject", "JSON Web Key"));
}
if (key.type === "secret") {
throw new TypeError(
`${tag(key)} instances for asymmetric algorithms must not be of type "secret"`
);
}
if (key.type === "public") {
switch (usage) {
case "sign":
throw new TypeError(
`${tag(key)} instances for asymmetric algorithm signing must be of type "private"`
);
case "decrypt":
throw new TypeError(
`${tag(key)} instances for asymmetric algorithm decryption must be of type "private"`
);
default:
break;
}
}
if (key.type === "private") {
switch (usage) {
case "verify":
throw new TypeError(
`${tag(key)} instances for asymmetric algorithm verifying must be of type "public"`
);
case "encrypt":
throw new TypeError(
`${tag(key)} instances for asymmetric algorithm encryption must be of type "public"`
);
default:
break;
}
}
};
var check_key_type_default = (alg, key, usage) => {
const symmetric = alg.startsWith("HS") || alg === "dir" || alg.startsWith("PBES2") || /^A(?:128|192|256)(?:GCM)?(?:KW)?$/.test(alg) || /^A(?:128|192|256)CBC-HS(?:256|384|512)$/.test(alg);
if (symmetric) {
symmetricTypeCheck(alg, key, usage);
} else {
asymmetricTypeCheck(alg, key, usage);
}
};
// src/jwe/flattened/encrypt.ts
var FlattenedEncrypt = class {
#plaintext;
#protectedHeader;
#sharedUnprotectedHeader;
#unprotectedHeader;
#aad;
#cek;
#iv;
#keyManagementParameters;
/**
* {@link FlattenedEncrypt} constructor
*
* @param plaintext Binary representation of the plaintext to encrypt.
*/
constructor(plaintext) {
if (!(plaintext instanceof Uint8Array)) {
throw new TypeError("plaintext must be an instance of Uint8Array");
}
this.#plaintext = plaintext;
}
/**
* Sets the JWE Key Management parameters to be used when encrypting. Use of this is method is
* really only needed for ECDH based algorithms when utilizing the Agreement PartyUInfo or
* Agreement PartyVInfo parameters. Other parameters will always be randomly generated when needed
* and missing.
*
* @param parameters JWE Key Management parameters.
*/
setKeyManagementParameters(parameters) {
if (this.#keyManagementParameters) {
throw new TypeError("setKeyManagementParameters can only be called once");
}
this.#keyManagementParameters = parameters;
return this;
}
/**
* Sets the JWE Protected Header on the FlattenedEncrypt object.
*
* @param protectedHeader JWE Protected Header.
*/
setProtectedHeader(protectedHeader) {
if (this.#protectedHeader) {
throw new TypeError("setProtectedHeader can only be called once");
}
this.#protectedHeader = protectedHeader;
return this;
}
/**
* Sets the JWE Shared Unprotected Header on the FlattenedEncrypt object.
*
* @param sharedUnprotectedHeader JWE Shared Unprotected Header.
*/
setSharedUnprotectedHeader(sharedUnprotectedHeader) {
if (this.#sharedUnprotectedHeader) {
throw new TypeError("setSharedUnprotectedHeader can only be called once");
}
this.#sharedUnprotectedHeader = sharedUnprotectedHeader;
return this;
}
/**
* Sets the JWE Per-Recipient Unprotected Header on the FlattenedEncrypt object.
*
* @param unprotectedHeader JWE Per-Recipient Unprotected Header.
*/
setUnprotectedHeader(unprotectedHeader) {
if (this.#unprotectedHeader) {
throw new TypeError("setUnprotectedHeader can only be called once");
}
this.#unprotectedHeader = unprotectedHeader;
return this;
}
/**
* Sets the Additional Authenticated Data on the FlattenedEncrypt object.
*
* @param aad Additional Authenticated Data.
*/
setAdditionalAuthenticatedData(aad) {
this.#aad = aad;
return this;
}
/**
* Sets a content encryption key to use, by default a random suitable one is generated for the JWE
* enc" (Encryption Algorithm) Header Parameter.
*
* @deprecated You should not use this method. It is only really intended for test and vector
* validation purposes.
*
* @param cek JWE Content Encryption Key.
*/
setContentEncryptionKey(cek) {
if (this.#cek) {
throw new TypeError("setContentEncryptionKey can only be called once");
}
this.#cek = cek;
return this;
}
/**
* Sets the JWE Initialization Vector to use for content encryption, by default a random suitable
* one is generated for the JWE enc" (Encryption Algorithm) Header Parameter.
*
* @deprecated You should not use this method. It is only really intended for test and vector
* validation purposes.
*
* @param iv JWE Initialization Vector.
*/
setInitializationVector(iv) {
if (this.#iv) {
throw new TypeError("setInitializationVector can only be called once");
}
this.#iv = iv;
return this;
}
/**
* Encrypts and resolves the value of the Flattened JWE object.
*
* @param key Public Key or Secret to encrypt the JWE with. See
* {@link https://github.com/panva/jose/issues/210#jwe-alg Algorithm Key Requirements}.
* @param options JWE Encryption options.
*/
async encrypt(key, options) {
if (!this.#protectedHeader && !this.#unprotectedHeader && !this.#sharedUnprotectedHeader) {
throw new JWEInvalid(
"either setProtectedHeader, setUnprotectedHeader, or sharedUnprotectedHeader must be called before #encrypt()"
);
}
if (!is_disjoint_default(this.#protectedHeader, this.#unprotectedHeader, this.#sharedUnprotectedHeader)) {
throw new JWEInvalid(
"JWE Protected, JWE Shared Unprotected and JWE Per-Recipient Header Parameter names must be disjoint"
);
}
const joseHeader = {
...this.#protectedHeader,
...this.#unprotectedHeader,
...this.#sharedUnprotectedHeader
};
validate_crit_default(JWEInvalid, /* @__PURE__ */ new Map(), options?.crit, this.#protectedHeader, joseHeader);
if (joseHeader.zip !== void 0) {
throw new JOSENotSupported(
'JWE "zip" (Compression Algorithm) Header Parameter is not supported.'
);
}
const { alg, enc } = joseHeader;
if (typeof alg !== "string" || !alg) {
throw new JWEInvalid('JWE "alg" (Algorithm) Header Parameter missing or invalid');
}
if (typeof enc !== "string" || !enc) {
throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter missing or invalid');
}
let encryptedKey;
if (this.#cek && (alg === "dir" || alg === "ECDH-ES")) {
throw new TypeError(
`setContentEncryptionKey cannot be called with JWE "alg" (Algorithm) Header ${alg}`
);
}
check_key_type_default(alg === "dir" ? enc : alg, key, "encrypt");
let cek;
{
let parameters;
const k = await normalize_key_default(key, alg);
({ cek, encryptedKey, parameters } = await encrypt_key_management_default(
alg,
enc,
k,
this.#cek,
this.#keyManagementParameters
));
if (parameters) {
if (options && unprotected in options) {
if (!this.#unprotectedHeader) {
this.setUnprotectedHeader(parameters);
} else {
this.#unprotectedHeader = { ...this.#unprotectedHeader, ...parameters };
}
} else if (!this.#protectedHeader) {
this.setProtectedHeader(parameters);
} else {
this.#protectedHeader = { ...this.#protectedHeader, ...parameters };
}
}
}
let additionalData;
let protectedHeader;
let aadMember;
if (this.#protectedHeader) {
protectedHeader = encoder.encode(encode(JSON.stringify(this.#protectedHeader)));
} else {
protectedHeader = encoder.encode("");
}
if (this.#aad) {
aadMember = encode(this.#aad);
additionalData = concat(protectedHeader, encoder.encode("."), encoder.encode(aadMember));
} else {
additionalData = protectedHeader;
}
const { ciphertext, tag: tag2, iv } = await encrypt_default(
enc,
this.#plaintext,
cek,
this.#iv,
additionalData
);
const jwe = {
ciphertext: encode(ciphertext)
};
if (iv) {
jwe.iv = encode(iv);
}
if (tag2) {
jwe.tag = encode(tag2);
}
if (encryptedKey) {
jwe.encrypted_key = encode(encryptedKey);
}
if (aadMember) {
jwe.aad = aadMember;
}
if (this.#protectedHeader) {
jwe.protected = decoder.decode(protectedHeader);
}
if (this.#sharedUnprotectedHeader) {
jwe.unprotected = this.#sharedUnprotectedHeader;
}
if (this.#unprotectedHeader) {
jwe.header = this.#unprotectedHeader;
}
return jwe;
}
};
// src/jwe/compact/encrypt.ts
var CompactEncrypt = class {
#flattened;
/**
* {@link CompactEncrypt} constructor
*
* @param plaintext Binary representation of the plaintext to encrypt.
*/
constructor(plaintext) {
this.#flattened = new FlattenedEncrypt(plaintext);
}
/**
* Sets a content encryption key to use, by default a random suitable one is generated for the JWE
* enc" (Encryption Algorithm) Header Parameter.
*
* @deprecated You should not use this method. It is only really intended for test and vector
* validation purposes.
*
* @param cek JWE Content Encryption Key.
*/
setContentEncryptionKey(cek) {
this.#flattened.setContentEncryptionKey(cek);
return this;
}
/**
* Sets the JWE Initialization Vector to use for content encryption, by default a random suitable
* one is generated for the JWE enc" (Encryption Algorithm) Header Parameter.
*
* @deprecated You should not use this method. It is only really intended for test and vector
* validation purposes.
*
* @param iv JWE Initialization Vector.
*/
setInitializationVector(iv) {
this.#flattened.setInitializationVector(iv);
return this;
}
/**
* Sets the JWE Protected Header on the CompactEncrypt object.
*
* @param protectedHeader JWE Protected Header object.
*/
setProtectedHeader(protectedHeader) {
this.#flattened.setProtectedHeader(protectedHeader);
return this;
}
/**
* Sets the JWE Key Management parameters to be used when encrypting the Content Encryption Key.
* You do not need to invoke this method, it is only really intended for test and vector
* validation purposes.
*
* @param parameters JWE Key Management parameters.
*/
setKeyManagementParameters(parameters) {
this.#flattened.setKeyManagementParameters(parameters);
return this;
}
/**
* Encrypts and resolves the value of the Compact JWE string.
*
* @param key Public Key or Secret to encrypt the JWE with. See
* {@link https://github.com/panva/jose/issues/210#jwe-alg Algorithm Key Requirements}.
* @param options JWE Encryption options.
*/
async encrypt(key, options) {
const jwe = await this.#flattened.encrypt(key, options);
return [jwe.protected, jwe.encrypted_key, jwe.iv, jwe.ciphertext, jwe.tag].join(".");
}
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
CompactEncrypt
});