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node_modules/jwa/LICENSE

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+Copyright (c) 2013 Brian J. Brennan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal in 
+the Software without restriction, including without limitation the rights to use, 
+copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the 
+Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all 
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/jwa/README.md

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+# node-jwa [![Build Status](https://travis-ci.org/brianloveswords/node-jwa.svg?branch=master)](https://travis-ci.org/brianloveswords/node-jwa)
+
+A
+[JSON Web Algorithms](http://tools.ietf.org/id/draft-ietf-jose-json-web-algorithms-08.html)
+implementation focusing (exclusively, at this point) on the algorithms necessary for
+[JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html).
+
+This library supports all of the required, recommended and optional cryptographic algorithms for JWS:
+
+alg Parameter Value | Digital Signature or MAC Algorithm
+----------------|----------------------------
+HS256 | HMAC using SHA-256 hash algorithm
+HS384 | HMAC using SHA-384 hash algorithm
+HS512 | HMAC using SHA-512 hash algorithm
+RS256 | RSASSA using SHA-256 hash algorithm
+RS384 | RSASSA using SHA-384 hash algorithm
+RS512 | RSASSA using SHA-512 hash algorithm
+PS256 | RSASSA-PSS using SHA-256 hash algorithm
+PS384 | RSASSA-PSS using SHA-384 hash algorithm
+PS512 | RSASSA-PSS using SHA-512 hash algorithm
+ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm
+ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm
+ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm
+none | No digital signature or MAC value included
+
+Please note that PS* only works on Node 6.12+ (excluding 7.x).
+
+# Requirements
+
+In order to run the tests, a recent version of OpenSSL is
+required. **The version that comes with OS X (OpenSSL 0.9.8r 8 Feb
+2011) is not recent enough**, as it does not fully support ECDSA
+keys. You'll need to use a version > 1.0.0; I tested with OpenSSL 1.0.1c 10 May 2012.
+
+# Testing
+
+To run the tests, do
+
+```bash
+$ npm test
+```
+
+This will generate a bunch of keypairs to use in testing. If you want to
+generate new keypairs, do `make clean` before running `npm test` again.
+
+## Methodology
+
+I spawn `openssl dgst -sign` to test OpenSSL sign → JS verify and
+`openssl dgst -verify` to test JS sign → OpenSSL verify for each of the
+RSA and ECDSA algorithms.
+
+# Usage
+
+## jwa(algorithm)
+
+Creates a new `jwa` object with `sign` and `verify` methods for the
+algorithm. Valid values for algorithm can be found in the table above
+(`'HS256'`, `'HS384'`, etc) and are case-insensitive. Passing an invalid
+algorithm value will throw a `TypeError`.
+
+
+## jwa#sign(input, secretOrPrivateKey)
+
+Sign some input with either a secret for HMAC algorithms, or a private
+key for RSA and ECDSA algorithms.
+
+If input is not already a string or buffer, `JSON.stringify` will be
+called on it to attempt to coerce it.
+
+For the HMAC algorithm, `secretOrPrivateKey` should be a string or a
+buffer. For ECDSA and RSA, the value should be a string representing a
+PEM encoded **private** key.
+
+Output [base64url](http://en.wikipedia.org/wiki/Base64#URL_applications)
+formatted. This is for convenience as JWS expects the signature in this
+format. If your application needs the output in a different format,
+[please open an issue](https://github.com/brianloveswords/node-jwa/issues). In
+the meantime, you can use
+[brianloveswords/base64url](https://github.com/brianloveswords/base64url)
+to decode the signature.
+
+As of nodejs *v0.11.8*, SPKAC support was introduce. If your nodeJs
+version satisfies, then you can pass an object `{ key: '..', passphrase: '...' }`
+
+
+## jwa#verify(input, signature, secretOrPublicKey)
+
+Verify a signature. Returns `true` or `false`.
+
+`signature` should be a base64url encoded string.
+
+For the HMAC algorithm, `secretOrPublicKey` should be a string or a
+buffer. For ECDSA and RSA, the value should be a string represented a
+PEM encoded **public** key.
+
+
+# Example
+
+HMAC
+```js
+const jwa = require('jwa');
+
+const hmac = jwa('HS256');
+const input = 'super important stuff';
+const secret = 'shhhhhh';
+
+const signature = hmac.sign(input, secret);
+hmac.verify(input, signature, secret) // === true
+hmac.verify(input, signature, 'trickery!') // === false
+```
+
+With keys
+```js
+const fs = require('fs');
+const jwa = require('jwa');
+const privateKey = fs.readFileSync(__dirname + '/ecdsa-p521-private.pem');
+const publicKey = fs.readFileSync(__dirname + '/ecdsa-p521-public.pem');
+
+const ecdsa = jwa('ES512');
+const input = 'very important stuff';
+
+const signature = ecdsa.sign(input, privateKey);
+ecdsa.verify(input, signature, publicKey) // === true
+```
+## License
+
+MIT
+
+```
+Copyright (c) 2013 Brian J. Brennan
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+```

node_modules/jwa/index.js

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+var bufferEqual = require('buffer-equal-constant-time');
+var Buffer = require('safe-buffer').Buffer;
+var crypto = require('crypto');
+var formatEcdsa = require('ecdsa-sig-formatter');
+var util = require('util');
+
+var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n  Supported algorithms are:\n  "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".'
+var MSG_INVALID_SECRET = 'secret must be a string or buffer';
+var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer';
+var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object';
+
+var supportsKeyObjects = typeof crypto.createPublicKey === 'function';
+if (supportsKeyObjects) {
+  MSG_INVALID_VERIFIER_KEY += ' or a KeyObject';
+  MSG_INVALID_SECRET += 'or a KeyObject';
+}
+
+function checkIsPublicKey(key) {
+  if (Buffer.isBuffer(key)) {
+    return;
+  }
+
+  if (typeof key === 'string') {
+    return;
+  }
+
+  if (!supportsKeyObjects) {
+    throw typeError(MSG_INVALID_VERIFIER_KEY);
+  }
+
+  if (typeof key !== 'object') {
+    throw typeError(MSG_INVALID_VERIFIER_KEY);
+  }
+
+  if (typeof key.type !== 'string') {
+    throw typeError(MSG_INVALID_VERIFIER_KEY);
+  }
+
+  if (typeof key.asymmetricKeyType !== 'string') {
+    throw typeError(MSG_INVALID_VERIFIER_KEY);
+  }
+
+  if (typeof key.export !== 'function') {
+    throw typeError(MSG_INVALID_VERIFIER_KEY);
+  }
+};
+
+function checkIsPrivateKey(key) {
+  if (Buffer.isBuffer(key)) {
+    return;
+  }
+
+  if (typeof key === 'string') {
+    return;
+  }
+
+  if (typeof key === 'object') {
+    return;
+  }
+
+  throw typeError(MSG_INVALID_SIGNER_KEY);
+};
+
+function checkIsSecretKey(key) {
+  if (Buffer.isBuffer(key)) {
+    return;
+  }
+
+  if (typeof key === 'string') {
+    return key;
+  }
+
+  if (!supportsKeyObjects) {
+    throw typeError(MSG_INVALID_SECRET);
+  }
+
+  if (typeof key !== 'object') {
+    throw typeError(MSG_INVALID_SECRET);
+  }
+
+  if (key.type !== 'secret') {
+    throw typeError(MSG_INVALID_SECRET);
+  }
+
+  if (typeof key.export !== 'function') {
+    throw typeError(MSG_INVALID_SECRET);
+  }
+}
+
+function fromBase64(base64) {
+  return base64
+    .replace(/=/g, '')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_');
+}
+
+function toBase64(base64url) {
+  base64url = base64url.toString();
+
+  var padding = 4 - base64url.length % 4;
+  if (padding !== 4) {
+    for (var i = 0; i < padding; ++i) {
+      base64url += '=';
+    }
+  }
+
+  return base64url
+    .replace(/\-/g, '+')
+    .replace(/_/g, '/');
+}
+
+function typeError(template) {
+  var args = [].slice.call(arguments, 1);
+  var errMsg = util.format.bind(util, template).apply(null, args);
+  return new TypeError(errMsg);
+}
+
+function bufferOrString(obj) {
+  return Buffer.isBuffer(obj) || typeof obj === 'string';
+}
+
+function normalizeInput(thing) {
+  if (!bufferOrString(thing))
+    thing = JSON.stringify(thing);
+  return thing;
+}
+
+function createHmacSigner(bits) {
+  return function sign(thing, secret) {
+    checkIsSecretKey(secret);
+    thing = normalizeInput(thing);
+    var hmac = crypto.createHmac('sha' + bits, secret);
+    var sig = (hmac.update(thing), hmac.digest('base64'))
+    return fromBase64(sig);
+  }
+}
+
+function createHmacVerifier(bits) {
+  return function verify(thing, signature, secret) {
+    var computedSig = createHmacSigner(bits)(thing, secret);
+    return bufferEqual(Buffer.from(signature), Buffer.from(computedSig));
+  }
+}
+
+function createKeySigner(bits) {
+ return function sign(thing, privateKey) {
+    checkIsPrivateKey(privateKey);
+    thing = normalizeInput(thing);
+    // Even though we are specifying "RSA" here, this works with ECDSA
+    // keys as well.
+    var signer = crypto.createSign('RSA-SHA' + bits);
+    var sig = (signer.update(thing), signer.sign(privateKey, 'base64'));
+    return fromBase64(sig);
+  }
+}
+
+function createKeyVerifier(bits) {
+  return function verify(thing, signature, publicKey) {
+    checkIsPublicKey(publicKey);
+    thing = normalizeInput(thing);
+    signature = toBase64(signature);
+    var verifier = crypto.createVerify('RSA-SHA' + bits);
+    verifier.update(thing);
+    return verifier.verify(publicKey, signature, 'base64');
+  }
+}
+
+function createPSSKeySigner(bits) {
+  return function sign(thing, privateKey) {
+    checkIsPrivateKey(privateKey);
+    thing = normalizeInput(thing);
+    var signer = crypto.createSign('RSA-SHA' + bits);
+    var sig = (signer.update(thing), signer.sign({
+      key: privateKey,
+      padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
+      saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
+    }, 'base64'));
+    return fromBase64(sig);
+  }
+}
+
+function createPSSKeyVerifier(bits) {
+  return function verify(thing, signature, publicKey) {
+    checkIsPublicKey(publicKey);
+    thing = normalizeInput(thing);
+    signature = toBase64(signature);
+    var verifier = crypto.createVerify('RSA-SHA' + bits);
+    verifier.update(thing);
+    return verifier.verify({
+      key: publicKey,
+      padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
+      saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
+    }, signature, 'base64');
+  }
+}
+
+function createECDSASigner(bits) {
+  var inner = createKeySigner(bits);
+  return function sign() {
+    var signature = inner.apply(null, arguments);
+    signature = formatEcdsa.derToJose(signature, 'ES' + bits);
+    return signature;
+  };
+}
+
+function createECDSAVerifer(bits) {
+  var inner = createKeyVerifier(bits);
+  return function verify(thing, signature, publicKey) {
+    signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64');
+    var result = inner(thing, signature, publicKey);
+    return result;
+  };
+}
+
+function createNoneSigner() {
+  return function sign() {
+    return '';
+  }
+}
+
+function createNoneVerifier() {
+  return function verify(thing, signature) {
+    return signature === '';
+  }
+}
+
+module.exports = function jwa(algorithm) {
+  var signerFactories = {
+    hs: createHmacSigner,
+    rs: createKeySigner,
+    ps: createPSSKeySigner,
+    es: createECDSASigner,
+    none: createNoneSigner,
+  }
+  var verifierFactories = {
+    hs: createHmacVerifier,
+    rs: createKeyVerifier,
+    ps: createPSSKeyVerifier,
+    es: createECDSAVerifer,
+    none: createNoneVerifier,
+  }
+  var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/i);
+  if (!match)
+    throw typeError(MSG_INVALID_ALGORITHM, algorithm);
+  var algo = (match[1] || match[3]).toLowerCase();
+  var bits = match[2];
+
+  return {
+    sign: signerFactories[algo](bits),
+    verify: verifierFactories[algo](bits),
+  }
+};

node_modules/jwa/package.json

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+{
+  "_from": "jwa@^1.4.1",
+  "_id": "jwa@1.4.1",
+  "_inBundle": false,
+  "_integrity": "sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==",
+  "_location": "/jwa",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "jwa@^1.4.1",
+    "name": "jwa",
+    "escapedName": "jwa",
+    "rawSpec": "^1.4.1",
+    "saveSpec": null,
+    "fetchSpec": "^1.4.1"
+  },
+  "_requiredBy": [
+    "/jws"
+  ],
+  "_resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.1.tgz",
+  "_shasum": "743c32985cb9e98655530d53641b66c8645b039a",
+  "_spec": "jwa@^1.4.1",
+  "_where": "C:\\Users\\matia\\Documents\\GitHub\\FutoX-Musix\\node_modules\\jws",
+  "author": {
+    "name": "Brian J. Brennan",
+    "email": "brianloveswords@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/brianloveswords/node-jwa/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "buffer-equal-constant-time": "1.0.1",
+    "ecdsa-sig-formatter": "1.0.11",
+    "safe-buffer": "^5.0.1"
+  },
+  "deprecated": false,
+  "description": "JWA implementation (supports all JWS algorithms)",
+  "devDependencies": {
+    "base64url": "^2.0.0",
+    "jwk-to-pem": "^2.0.1",
+    "semver": "4.3.6",
+    "tap": "6.2.0"
+  },
+  "directories": {
+    "test": "test"
+  },
+  "homepage": "https://github.com/brianloveswords/node-jwa#readme",
+  "keywords": [
+    "jwa",
+    "jws",
+    "jwt",
+    "rsa",
+    "ecdsa",
+    "hmac"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "jwa",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/brianloveswords/node-jwa.git"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "version": "1.4.1"
+}