main repo

node_modules/jose/dist/node/esm/jwe/compact/decrypt.js

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+import { flattenedDecrypt } from '../flattened/decrypt.js';
+import { JWEInvalid } from '../../util/errors.js';
+import { decoder } from '../../lib/buffer_utils.js';
+export async function compactDecrypt(jwe, key, options) {
+    if (jwe instanceof Uint8Array) {
+        jwe = decoder.decode(jwe);
+    }
+    if (typeof jwe !== 'string') {
+        throw new JWEInvalid('Compact JWE must be a string or Uint8Array');
+    }
+    const { 0: protectedHeader, 1: encryptedKey, 2: iv, 3: ciphertext, 4: tag, length, } = jwe.split('.');
+    if (length !== 5) {
+        throw new JWEInvalid('Invalid Compact JWE');
+    }
+    const decrypted = await flattenedDecrypt({
+        ciphertext,
+        iv: (iv || undefined),
+        protected: protectedHeader || undefined,
+        tag: (tag || undefined),
+        encrypted_key: encryptedKey || undefined,
+    }, key, options);
+    const result = { plaintext: decrypted.plaintext, protectedHeader: decrypted.protectedHeader };
+    if (typeof key === 'function') {
+        return { ...result, key: decrypted.key };
+    }
+    return result;
+}

node_modules/jose/dist/node/esm/jwe/compact/encrypt.js

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+import { FlattenedEncrypt } from '../flattened/encrypt.js';
+export class CompactEncrypt {
+    constructor(plaintext) {
+        this._flattened = new FlattenedEncrypt(plaintext);
+    }
+    setContentEncryptionKey(cek) {
+        this._flattened.setContentEncryptionKey(cek);
+        return this;
+    }
+    setInitializationVector(iv) {
+        this._flattened.setInitializationVector(iv);
+        return this;
+    }
+    setProtectedHeader(protectedHeader) {
+        this._flattened.setProtectedHeader(protectedHeader);
+        return this;
+    }
+    setKeyManagementParameters(parameters) {
+        this._flattened.setKeyManagementParameters(parameters);
+        return this;
+    }
+    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('.');
+    }
+}

node_modules/jose/dist/node/esm/jwe/flattened/decrypt.js

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+import { decode as base64url } from '../../runtime/base64url.js';
+import decrypt from '../../runtime/decrypt.js';
+import { inflate } from '../../runtime/zlib.js';
+import { JOSEAlgNotAllowed, JOSENotSupported, JWEInvalid } from '../../util/errors.js';
+import isDisjoint from '../../lib/is_disjoint.js';
+import isObject from '../../lib/is_object.js';
+import decryptKeyManagement from '../../lib/decrypt_key_management.js';
+import { encoder, decoder, concat } from '../../lib/buffer_utils.js';
+import generateCek from '../../lib/cek.js';
+import validateCrit from '../../lib/validate_crit.js';
+import validateAlgorithms from '../../lib/validate_algorithms.js';
+export async function flattenedDecrypt(jwe, key, options) {
+    var _a;
+    if (!isObject(jwe)) {
+        throw new JWEInvalid('Flattened JWE must be an object');
+    }
+    if (jwe.protected === undefined && jwe.header === undefined && jwe.unprotected === undefined) {
+        throw new JWEInvalid('JOSE Header missing');
+    }
+    if (typeof jwe.iv !== 'string') {
+        throw new JWEInvalid('JWE Initialization Vector missing or incorrect type');
+    }
+    if (typeof jwe.ciphertext !== 'string') {
+        throw new JWEInvalid('JWE Ciphertext missing or incorrect type');
+    }
+    if (typeof jwe.tag !== 'string') {
+        throw new JWEInvalid('JWE Authentication Tag missing or incorrect type');
+    }
+    if (jwe.protected !== undefined && typeof jwe.protected !== 'string') {
+        throw new JWEInvalid('JWE Protected Header incorrect type');
+    }
+    if (jwe.encrypted_key !== undefined && typeof jwe.encrypted_key !== 'string') {
+        throw new JWEInvalid('JWE Encrypted Key incorrect type');
+    }
+    if (jwe.aad !== undefined && typeof jwe.aad !== 'string') {
+        throw new JWEInvalid('JWE AAD incorrect type');
+    }
+    if (jwe.header !== undefined && !isObject(jwe.header)) {
+        throw new JWEInvalid('JWE Shared Unprotected Header incorrect type');
+    }
+    if (jwe.unprotected !== undefined && !isObject(jwe.unprotected)) {
+        throw new JWEInvalid('JWE Per-Recipient Unprotected Header incorrect type');
+    }
+    let parsedProt;
+    if (jwe.protected) {
+        try {
+            const protectedHeader = base64url(jwe.protected);
+            parsedProt = JSON.parse(decoder.decode(protectedHeader));
+        }
+        catch {
+            throw new JWEInvalid('JWE Protected Header is invalid');
+        }
+    }
+    if (!isDisjoint(parsedProt, jwe.header, jwe.unprotected)) {
+        throw new JWEInvalid('JWE Protected, JWE Unprotected Header, and JWE Per-Recipient Unprotected Header Parameter names must be disjoint');
+    }
+    const joseHeader = {
+        ...parsedProt,
+        ...jwe.header,
+        ...jwe.unprotected,
+    };
+    validateCrit(JWEInvalid, new Map(), options === null || options === void 0 ? void 0 : options.crit, parsedProt, joseHeader);
+    if (joseHeader.zip !== undefined) {
+        if (!parsedProt || !parsedProt.zip) {
+            throw new JWEInvalid('JWE "zip" (Compression Algorithm) Header MUST be integrity protected');
+        }
+        if (joseHeader.zip !== 'DEF') {
+            throw new JOSENotSupported('Unsupported JWE "zip" (Compression Algorithm) Header Parameter value');
+        }
+    }
+    const { alg, enc } = joseHeader;
+    if (typeof alg !== 'string' || !alg) {
+        throw new JWEInvalid('missing JWE Algorithm (alg) in JWE Header');
+    }
+    if (typeof enc !== 'string' || !enc) {
+        throw new JWEInvalid('missing JWE Encryption Algorithm (enc) in JWE Header');
+    }
+    const keyManagementAlgorithms = options && validateAlgorithms('keyManagementAlgorithms', options.keyManagementAlgorithms);
+    const contentEncryptionAlgorithms = options &&
+        validateAlgorithms('contentEncryptionAlgorithms', options.contentEncryptionAlgorithms);
+    if (keyManagementAlgorithms && !keyManagementAlgorithms.has(alg)) {
+        throw new JOSEAlgNotAllowed('"alg" (Algorithm) Header Parameter not allowed');
+    }
+    if (contentEncryptionAlgorithms && !contentEncryptionAlgorithms.has(enc)) {
+        throw new JOSEAlgNotAllowed('"enc" (Encryption Algorithm) Header Parameter not allowed');
+    }
+    let encryptedKey;
+    if (jwe.encrypted_key !== undefined) {
+        try {
+            encryptedKey = base64url(jwe.encrypted_key);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the encrypted_key');
+        }
+    }
+    let resolvedKey = false;
+    if (typeof key === 'function') {
+        key = await key(parsedProt, jwe);
+        resolvedKey = true;
+    }
+    let cek;
+    try {
+        cek = await decryptKeyManagement(alg, key, encryptedKey, joseHeader, options);
+    }
+    catch (err) {
+        if (err instanceof TypeError || err instanceof JWEInvalid || err instanceof JOSENotSupported) {
+            throw err;
+        }
+        cek = generateCek(enc);
+    }
+    let iv;
+    let tag;
+    try {
+        iv = base64url(jwe.iv);
+    }
+    catch {
+        throw new JWEInvalid('Failed to base64url decode the iv');
+    }
+    try {
+        tag = base64url(jwe.tag);
+    }
+    catch {
+        throw new JWEInvalid('Failed to base64url decode the tag');
+    }
+    const protectedHeader = encoder.encode((_a = jwe.protected) !== null && _a !== void 0 ? _a : '');
+    let additionalData;
+    if (jwe.aad !== undefined) {
+        additionalData = concat(protectedHeader, encoder.encode('.'), encoder.encode(jwe.aad));
+    }
+    else {
+        additionalData = protectedHeader;
+    }
+    let ciphertext;
+    try {
+        ciphertext = base64url(jwe.ciphertext);
+    }
+    catch {
+        throw new JWEInvalid('Failed to base64url decode the ciphertext');
+    }
+    let plaintext = await decrypt(enc, cek, ciphertext, iv, tag, additionalData);
+    if (joseHeader.zip === 'DEF') {
+        plaintext = await ((options === null || options === void 0 ? void 0 : options.inflateRaw) || inflate)(plaintext);
+    }
+    const result = { plaintext };
+    if (jwe.protected !== undefined) {
+        result.protectedHeader = parsedProt;
+    }
+    if (jwe.aad !== undefined) {
+        try {
+            result.additionalAuthenticatedData = base64url(jwe.aad);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the aad');
+        }
+    }
+    if (jwe.unprotected !== undefined) {
+        result.sharedUnprotectedHeader = jwe.unprotected;
+    }
+    if (jwe.header !== undefined) {
+        result.unprotectedHeader = jwe.header;
+    }
+    if (resolvedKey) {
+        return { ...result, key };
+    }
+    return result;
+}

node_modules/jose/dist/node/esm/jwe/flattened/encrypt.js

@@ -0,0 +1,175 @@
+import { encode as base64url } from '../../runtime/base64url.js';
+import encrypt from '../../runtime/encrypt.js';
+import { deflate } from '../../runtime/zlib.js';
+import generateIv from '../../lib/iv.js';
+import encryptKeyManagement from '../../lib/encrypt_key_management.js';
+import { JOSENotSupported, JWEInvalid } from '../../util/errors.js';
+import isDisjoint from '../../lib/is_disjoint.js';
+import { encoder, decoder, concat } from '../../lib/buffer_utils.js';
+import validateCrit from '../../lib/validate_crit.js';
+export const unprotected = Symbol();
+export class FlattenedEncrypt {
+    constructor(plaintext) {
+        if (!(plaintext instanceof Uint8Array)) {
+            throw new TypeError('plaintext must be an instance of Uint8Array');
+        }
+        this._plaintext = plaintext;
+    }
+    setKeyManagementParameters(parameters) {
+        if (this._keyManagementParameters) {
+            throw new TypeError('setKeyManagementParameters can only be called once');
+        }
+        this._keyManagementParameters = parameters;
+        return this;
+    }
+    setProtectedHeader(protectedHeader) {
+        if (this._protectedHeader) {
+            throw new TypeError('setProtectedHeader can only be called once');
+        }
+        this._protectedHeader = protectedHeader;
+        return this;
+    }
+    setSharedUnprotectedHeader(sharedUnprotectedHeader) {
+        if (this._sharedUnprotectedHeader) {
+            throw new TypeError('setSharedUnprotectedHeader can only be called once');
+        }
+        this._sharedUnprotectedHeader = sharedUnprotectedHeader;
+        return this;
+    }
+    setUnprotectedHeader(unprotectedHeader) {
+        if (this._unprotectedHeader) {
+            throw new TypeError('setUnprotectedHeader can only be called once');
+        }
+        this._unprotectedHeader = unprotectedHeader;
+        return this;
+    }
+    setAdditionalAuthenticatedData(aad) {
+        this._aad = aad;
+        return this;
+    }
+    setContentEncryptionKey(cek) {
+        if (this._cek) {
+            throw new TypeError('setContentEncryptionKey can only be called once');
+        }
+        this._cek = cek;
+        return this;
+    }
+    setInitializationVector(iv) {
+        if (this._iv) {
+            throw new TypeError('setInitializationVector can only be called once');
+        }
+        this._iv = iv;
+        return this;
+    }
+    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 (!isDisjoint(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,
+        };
+        validateCrit(JWEInvalid, new Map(), options === null || options === void 0 ? void 0 : options.crit, this._protectedHeader, joseHeader);
+        if (joseHeader.zip !== undefined) {
+            if (!this._protectedHeader || !this._protectedHeader.zip) {
+                throw new JWEInvalid('JWE "zip" (Compression Algorithm) Header MUST be integrity protected');
+            }
+            if (joseHeader.zip !== 'DEF') {
+                throw new JOSENotSupported('Unsupported JWE "zip" (Compression Algorithm) Header Parameter value');
+            }
+        }
+        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 (alg === 'dir') {
+            if (this._cek) {
+                throw new TypeError('setContentEncryptionKey cannot be called when using Direct Encryption');
+            }
+        }
+        else if (alg === 'ECDH-ES') {
+            if (this._cek) {
+                throw new TypeError('setContentEncryptionKey cannot be called when using Direct Key Agreement');
+            }
+        }
+        let cek;
+        {
+            let parameters;
+            ({ cek, encryptedKey, parameters } = await encryptKeyManagement(alg, enc, key, 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 };
+                    }
+                }
+            }
+        }
+        this._iv || (this._iv = generateIv(enc));
+        let additionalData;
+        let protectedHeader;
+        let aadMember;
+        if (this._protectedHeader) {
+            protectedHeader = encoder.encode(base64url(JSON.stringify(this._protectedHeader)));
+        }
+        else {
+            protectedHeader = encoder.encode('');
+        }
+        if (this._aad) {
+            aadMember = base64url(this._aad);
+            additionalData = concat(protectedHeader, encoder.encode('.'), encoder.encode(aadMember));
+        }
+        else {
+            additionalData = protectedHeader;
+        }
+        let ciphertext;
+        let tag;
+        if (joseHeader.zip === 'DEF') {
+            const deflated = await ((options === null || options === void 0 ? void 0 : options.deflateRaw) || deflate)(this._plaintext);
+            ({ ciphertext, tag } = await encrypt(enc, deflated, cek, this._iv, additionalData));
+        }
+        else {
+            ;
+            ({ ciphertext, tag } = await encrypt(enc, this._plaintext, cek, this._iv, additionalData));
+        }
+        const jwe = {
+            ciphertext: base64url(ciphertext),
+            iv: base64url(this._iv),
+            tag: base64url(tag),
+        };
+        if (encryptedKey) {
+            jwe.encrypted_key = base64url(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;
+    }
+}

node_modules/jose/dist/node/esm/jwe/general/decrypt.js

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+import { flattenedDecrypt } from '../flattened/decrypt.js';
+import { JWEDecryptionFailed, JWEInvalid } from '../../util/errors.js';
+import isObject from '../../lib/is_object.js';
+export async function generalDecrypt(jwe, key, options) {
+    if (!isObject(jwe)) {
+        throw new JWEInvalid('General JWE must be an object');
+    }
+    if (!Array.isArray(jwe.recipients) || !jwe.recipients.every(isObject)) {
+        throw new JWEInvalid('JWE Recipients missing or incorrect type');
+    }
+    if (!jwe.recipients.length) {
+        throw new JWEInvalid('JWE Recipients has no members');
+    }
+    for (const recipient of jwe.recipients) {
+        try {
+            return await flattenedDecrypt({
+                aad: jwe.aad,
+                ciphertext: jwe.ciphertext,
+                encrypted_key: recipient.encrypted_key,
+                header: recipient.header,
+                iv: jwe.iv,
+                protected: jwe.protected,
+                tag: jwe.tag,
+                unprotected: jwe.unprotected,
+            }, key, options);
+        }
+        catch {
+        }
+    }
+    throw new JWEDecryptionFailed();
+}

node_modules/jose/dist/node/esm/jwe/general/encrypt.js

@@ -0,0 +1,178 @@
+import { FlattenedEncrypt, unprotected } from '../flattened/encrypt.js';
+import { JWEInvalid } from '../../util/errors.js';
+import generateCek from '../../lib/cek.js';
+import isDisjoint from '../../lib/is_disjoint.js';
+import encryptKeyManagement from '../../lib/encrypt_key_management.js';
+import { encode as base64url } from '../../runtime/base64url.js';
+import validateCrit from '../../lib/validate_crit.js';
+class IndividualRecipient {
+    constructor(enc, key, options) {
+        this.parent = enc;
+        this.key = key;
+        this.options = options;
+    }
+    setUnprotectedHeader(unprotectedHeader) {
+        if (this.unprotectedHeader) {
+            throw new TypeError('setUnprotectedHeader can only be called once');
+        }
+        this.unprotectedHeader = unprotectedHeader;
+        return this;
+    }
+    addRecipient(...args) {
+        return this.parent.addRecipient(...args);
+    }
+    encrypt(...args) {
+        return this.parent.encrypt(...args);
+    }
+    done() {
+        return this.parent;
+    }
+}
+export class GeneralEncrypt {
+    constructor(plaintext) {
+        this._recipients = [];
+        this._plaintext = plaintext;
+    }
+    addRecipient(key, options) {
+        const recipient = new IndividualRecipient(this, key, { crit: options === null || options === void 0 ? void 0 : options.crit });
+        this._recipients.push(recipient);
+        return recipient;
+    }
+    setProtectedHeader(protectedHeader) {
+        if (this._protectedHeader) {
+            throw new TypeError('setProtectedHeader can only be called once');
+        }
+        this._protectedHeader = protectedHeader;
+        return this;
+    }
+    setSharedUnprotectedHeader(sharedUnprotectedHeader) {
+        if (this._unprotectedHeader) {
+            throw new TypeError('setSharedUnprotectedHeader can only be called once');
+        }
+        this._unprotectedHeader = sharedUnprotectedHeader;
+        return this;
+    }
+    setAdditionalAuthenticatedData(aad) {
+        this._aad = aad;
+        return this;
+    }
+    async encrypt(options) {
+        var _a, _b, _c;
+        if (!this._recipients.length) {
+            throw new JWEInvalid('at least one recipient must be added');
+        }
+        options = { deflateRaw: options === null || options === void 0 ? void 0 : options.deflateRaw };
+        if (this._recipients.length === 1) {
+            const [recipient] = this._recipients;
+            const flattened = await new FlattenedEncrypt(this._plaintext)
+                .setAdditionalAuthenticatedData(this._aad)
+                .setProtectedHeader(this._protectedHeader)
+                .setSharedUnprotectedHeader(this._unprotectedHeader)
+                .setUnprotectedHeader(recipient.unprotectedHeader)
+                .encrypt(recipient.key, { ...recipient.options, ...options });
+            let jwe = {
+                ciphertext: flattened.ciphertext,
+                iv: flattened.iv,
+                recipients: [{}],
+                tag: flattened.tag,
+            };
+            if (flattened.aad)
+                jwe.aad = flattened.aad;
+            if (flattened.protected)
+                jwe.protected = flattened.protected;
+            if (flattened.unprotected)
+                jwe.unprotected = flattened.unprotected;
+            if (flattened.encrypted_key)
+                jwe.recipients[0].encrypted_key = flattened.encrypted_key;
+            if (flattened.header)
+                jwe.recipients[0].header = flattened.header;
+            return jwe;
+        }
+        let enc;
+        for (let i = 0; i < this._recipients.length; i++) {
+            const recipient = this._recipients[i];
+            if (!isDisjoint(this._protectedHeader, this._unprotectedHeader, recipient.unprotectedHeader)) {
+                throw new JWEInvalid('JWE Protected, JWE Shared Unprotected and JWE Per-Recipient Header Parameter names must be disjoint');
+            }
+            const joseHeader = {
+                ...this._protectedHeader,
+                ...this._unprotectedHeader,
+                ...recipient.unprotectedHeader,
+            };
+            const { alg } = joseHeader;
+            if (typeof alg !== 'string' || !alg) {
+                throw new JWEInvalid('JWE "alg" (Algorithm) Header Parameter missing or invalid');
+            }
+            if (alg === 'dir' || alg === 'ECDH-ES') {
+                throw new JWEInvalid('"dir" and "ECDH-ES" alg may only be used with a single recipient');
+            }
+            if (typeof joseHeader.enc !== 'string' || !joseHeader.enc) {
+                throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter missing or invalid');
+            }
+            if (!enc) {
+                enc = joseHeader.enc;
+            }
+            else if (enc !== joseHeader.enc) {
+                throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter must be the same for all recipients');
+            }
+            validateCrit(JWEInvalid, new Map(), recipient.options.crit, this._protectedHeader, joseHeader);
+            if (joseHeader.zip !== undefined) {
+                if (!this._protectedHeader || !this._protectedHeader.zip) {
+                    throw new JWEInvalid('JWE "zip" (Compression Algorithm) Header MUST be integrity protected');
+                }
+            }
+        }
+        const cek = generateCek(enc);
+        let jwe = {
+            ciphertext: '',
+            iv: '',
+            recipients: [],
+            tag: '',
+        };
+        for (let i = 0; i < this._recipients.length; i++) {
+            const recipient = this._recipients[i];
+            const target = {};
+            jwe.recipients.push(target);
+            const joseHeader = {
+                ...this._protectedHeader,
+                ...this._unprotectedHeader,
+                ...recipient.unprotectedHeader,
+            };
+            const p2c = joseHeader.alg.startsWith('PBES2') ? 2048 + i : undefined;
+            if (i === 0) {
+                const flattened = await new FlattenedEncrypt(this._plaintext)
+                    .setAdditionalAuthenticatedData(this._aad)
+                    .setContentEncryptionKey(cek)
+                    .setProtectedHeader(this._protectedHeader)
+                    .setSharedUnprotectedHeader(this._unprotectedHeader)
+                    .setUnprotectedHeader(recipient.unprotectedHeader)
+                    .setKeyManagementParameters({ p2c })
+                    .encrypt(recipient.key, {
+                    ...recipient.options,
+                    ...options,
+                    [unprotected]: true,
+                });
+                jwe.ciphertext = flattened.ciphertext;
+                jwe.iv = flattened.iv;
+                jwe.tag = flattened.tag;
+                if (flattened.aad)
+                    jwe.aad = flattened.aad;
+                if (flattened.protected)
+                    jwe.protected = flattened.protected;
+                if (flattened.unprotected)
+                    jwe.unprotected = flattened.unprotected;
+                target.encrypted_key = flattened.encrypted_key;
+                if (flattened.header)
+                    target.header = flattened.header;
+                continue;
+            }
+            const { encryptedKey, parameters } = await encryptKeyManagement(((_a = recipient.unprotectedHeader) === null || _a === void 0 ? void 0 : _a.alg) ||
+                ((_b = this._protectedHeader) === null || _b === void 0 ? void 0 : _b.alg) ||
+                ((_c = this._unprotectedHeader) === null || _c === void 0 ? void 0 : _c.alg), enc, recipient.key, cek, { p2c });
+            target.encrypted_key = base64url(encryptedKey);
+            if (recipient.unprotectedHeader || parameters)
+                target.header = { ...recipient.unprotectedHeader, ...parameters };
+        }
+        return jwe;
+    }
+}