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v1.1.0: Add tests, more convenience methods, more docs

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AJ ONeal 2019-03-04 17:16:25 -07:00
parent 738be9b656
commit 7099943db7
5 changed files with 263 additions and 19 deletions
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74
README.md
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@ -1,4 +1,4 @@
# Keypairs for node.js
# Keypairs.js
Lightweight JavaScript RSA and ECDSA utils that work on Windows, Mac, and Linux
using modern node.js APIs (no need for C compiler).
@ -13,6 +13,7 @@ and [Rasha.js (RSA)](https://git.coolaj86.com/coolaj86/rasha.js/).
* [x] ECDSA (P-256, P-384)
* [x] PEM-to-JWK
* [x] JWK-to-PEM
* [x] Create JWTs (and sign JWS)
* [x] SHA256 JWK Thumbprints
* [ ] JWK fetching. See [Keyfetch.js](https://npmjs.com/packages/keyfetch/)
* [ ] OIDC
@ -20,7 +21,6 @@ and [Rasha.js (RSA)](https://git.coolaj86.com/coolaj86/rasha.js/).
<!--
* [ ] sign JWS
* [ ] generate CSR (DER as PEM or base64url)
-->
@ -54,6 +54,16 @@ _much_ longer than RSA has, and they're smaller, and faster to generate.
## API Overview
* generate
* parse
* parseOrGenerate
* import (PEM-to-JWK)
* export (JWK-to-PEM, private or public)
* publish (Private JWK to Public JWK)
* thumbprint (JWK SHA256)
* signJwt
* signJws
#### Keypairs.generate(options)
Generates a public/private pair of JWKs as `{ private, public }`
@ -65,6 +75,50 @@ Option examples:
When no options are supplied EC P-256 (also known as `prime256v1` and `secp256r1`) is used by default.
#### Keypairs.parse(options)
Parses either a JWK (encoded as JSON) or an x509 (encdode as PEM) and gives
back the JWK representation.
Option Examples:
* JWK { key: '{ "kty":"EC", ... }' }
* PEM { key: '-----BEGIN PRIVATE KEY-----\n...' }
* Public Key Only { key: '-----BEGIN PRIVATE KEY-----\n...', public: true }
* Must Have Private Key { key: '-----BEGIN PUBLIC KEY-----\n...', private: true }
Example:
```js
Keypairs.parse({ key: '...' }).catch(function (e) {
// could not be parsed or was a public key
console.warn(e);
return Keypairs.generate();
});
```
#### Keypairs.parseOrGenerate({ key, throw, [generate opts]... })
Parses the key. Logs a warning on failure, marches on.
(a shortcut for the above, with `private: true`)
Option Examples:
* parse key if exist, otherwise generate `{ key: process.env["PRIVATE_KEY"] }`
* generated key curve `{ key: null, namedCurve: 'P-256' }`
* generated key modulus `{ key: null, modulusLength: 2048 }`
Example:
```js
Keypairs.parseOrGenerate({ key: process.env["PRIVATE_KEY"] }).then(function (pair) {
console.log(pair.public);
})
```
Great for when you have a set of shared keys for development and randomly
generated keys in
#### Keypairs.import({ pem: '...' }
Takes a PEM in pretty much any format (PKCS1, SEC1, PKCS8, SPKI) and returns a JWK.
@ -85,6 +139,10 @@ Options
}
```
#### Keypairs.publish({ jwk: jwk })
**Synchronously** strips a key of its private parts and returns the public version.
#### Keypairs.thumbprint({ jwk: jwk })
Promises a JWK-spec thumbprint: URL Base64-encoded sha256
@ -134,11 +192,15 @@ Options:
# Additional Documentation
Keypairs.js provides a 1-to-1 mapping to the Rasha.js and Eckles.js APIs,
but it also includes the additional convenience methods `signJwt` and `signJws`.
Keypairs.js provides a 1-to-1 mapping to the Rasha.js and Eckles.js APIs for the following:
That is to say that any option you pass to Keypairs will be passed directly to the corresponding API
of either Rasha or Eckles.
* generate(options)
* import({ pem: '---BEGIN...' })
* export({ jwk: { kty: 'EC', ... })
* thumbprint({ jwk: jwk })
If you want to know the algorithm-specific options that are available for those
you'll want to take a look at the corresponding documentation:
* See ECDSA documentation at [Eckles.js](https://git.coolaj86.com/coolaj86/eckles.js/)
* See RSA documentation at [Rasha.js](https://git.coolaj86.com/coolaj86/rasha.js/)

80
keypairs.js
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@ -16,9 +16,64 @@ Keypairs.generate = function (opts) {
return Eckles.generate(opts);
};
Keypairs.parse = function (opts) {
opts = opts || {};
var err;
var jwk;
var pem;
var p;
try {
jwk = JSON.parse(opts.key);
p = Keypairs.export({ jwk: jwk }).catch(function (e) {
pem = opts.key;
err = new Error("Not a valid jwk '" + JSON.stringify(jwk) + "':" + e.message);
err.code = "EINVALID";
return Promise.reject(err);
}).then(function () {
return jwk;
});
} catch(e) {
p = Keypairs.import({ pem: opts.key }).catch(function (e) {
err = new Error("Could not parse key (type " + typeof opts.key + ") '" + opts.key + "': " + e.message);
err.code = "EPARSE";
return Promise.reject(err);
});
}
return p.then(function (jwk) {
var pubopts = JSON.parse(JSON.stringify(opts));
pubopts.jwk = jwk;
return Keypairs.publish(pubopts).then(function (pub) {
// 'd' happens to be the name of a private part of both RSA and ECDSA keys
if (opts.public || opts.publish || !jwk.d) {
if (opts.private) {
// TODO test that it can actually sign?
err = new Error("Not a private key '" + JSON.stringify(jwk) + "'");
err.code = "ENOTPRIVATE";
return Promise.reject(err);
}
return { public: pub };
} else {
return { private: jwk, public: pub };
}
});
});
};
Keypairs.parseOrGenerate = function (opts) {
if (!opts.key) { return Keypairs.generate(opts); }
opts.private = true;
return Keypairs.parse(opts).catch(function (e) {
console.warn(e.message);
return Keypairs.generate(opts);
});
};
Keypairs.import = function (opts) {
return Eckles.import(opts.pem).catch(function () {
return Rasha.import(opts.pem);
return Eckles.import(opts).catch(function () {
return Rasha.import(opts);
});
};
@ -32,6 +87,27 @@ Keypairs.export = function (opts) {
});
};
Keypairs.publish = function (opts) {
if ('object' !== typeof opts.jwk || !opts.jwk.kty) { throw new Error("invalid jwk: " + JSON.stringify(opts.jwk)); }
// trying to find the best balance of an immutable copy with custom attributes
var jwk = {};
Object.keys(opts.jwk).forEach(function (k) {
// ignore RSA and EC private parts
if (-1 !== ['d', 'p', 'q', 'dp', 'dq', 'qi'].indexOf(k)) { return; }
jwk[k] = JSON.parse(JSON.stringify(opts.jwk[k]));
});
if (!jwk.exp) {
if (opts.expiresIn) { jwk.exp = Math.round(Date.now()/1000) + opts.expiresIn; }
else { jwk.exp = opts.expiresAt; }
}
if (!jwk.use && false !== jwk.use) { jwk.use = "sig"; }
if (jwk.kid) { return Promise.resolve(jwk); }
return Keypairs.thumbprint({ jwk: jwk }).then(function (thumb) { jwk.kid = thumb; return jwk; });
};
Keypairs.thumbprint = function (opts) {
return Promise.resolve().then(function () {
if ('RSA' === opts.jwk.kty) {

14
package-lock.json generated
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@ -1,18 +1,18 @@
{
"name": "keypairs",
"version": "1.0.1",
"version": "1.1.0",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
"eckles": {
"version": "1.4.0",
"resolved": "https://registry.npmjs.org/eckles/-/eckles-1.4.0.tgz",
"integrity": "sha512-Bm5dpwhsBuoCHvKCY3gAvP8XFyXH7im8uAu3szykpVNbFBdC+lOuV8vLC8fvTYRZBfFqB+k/P6ud/ZPVO2V2tA=="
"version": "1.4.1",
"resolved": "https://registry.npmjs.org/eckles/-/eckles-1.4.1.tgz",
"integrity": "sha512-auWyk/k8oSkVHaD4RxkPadKsLUcIwKgr/h8F7UZEueFDBO7BsE4y+H6IMUDbfqKIFPg/9MxV6KcBdJCmVVcxSA=="
},
"rasha": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/rasha/-/rasha-1.2.1.tgz",
"integrity": "sha512-cs4Hu/rVF3/Qucq+V7lxSz449VfHNMVXJaeajAHno9H5FC1PWlmS4NM6IAX5jPKFF0IC2rOdHdf7iNxQuIWZag=="
"version": "1.2.4",
"resolved": "https://registry.npmjs.org/rasha/-/rasha-1.2.4.tgz",
"integrity": "sha512-GsIwKv+hYSumJyK9wkTDaERLwvWaGYh1WuI7JMTBISfYt13TkKFU/HFzlY4n72p8VfXZRUYm0AqaYhkZVxOC3Q=="
}
}
}

8
package.json
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@ -1,11 +1,11 @@
{
"name": "keypairs",
"version": "1.0.1",
"version": "1.1.0",
"description": "Lightweight RSA/ECDSA keypair generation and JWK <-> PEM",
"main": "keypairs.js",
"files": [],
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
"test": "node test.js"
},
"repository": {
"type": "git",
@ -21,7 +21,7 @@
"author": "AJ ONeal <coolaj86@gmail.com> (https://coolaj86.com/)",
"license": "MPL-2.0",
"dependencies": {
"eckles": "^1.4.0",
"rasha": "^1.2.1"
"eckles": "^1.4.1",
"rasha": "^1.2.4"
}
}

106
test.js Normal file
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@ -0,0 +1,106 @@
var Keypairs = require('./');
/* global Promise*/
Keypairs.parseOrGenerate({ key: '' }).then(function (pair) {
// should NOT have any warning output
if (!pair.private || !pair.public) {
throw new Error("missing key pairs");
}
return Promise.all([
// Testing Public Part of key
Keypairs.export({ jwk: pair.public }).then(function (pem) {
if (!/--BEGIN PUBLIC/.test(pem)) {
throw new Error("did not export public pem");
}
return Promise.all([
Keypairs.parse({ key: pem }).then(function (pair) {
if (pair.private) {
throw new Error("shouldn't have private part");
}
return true;
})
, Keypairs.parse({ key: pem, private: true }).then(function () {
var err = new Error("should have thrown an error when private key was required and public pem was given");
err.code = 'NOERR';
throw err;
}).catch(function (e) {
if ('NOERR' === e.code) { throw e; }
return true;
})
]).then(function () {
return true;
});
})
// Testing Private Part of Key
, Keypairs.export({ jwk: pair.private }).then(function (pem) {
if (!/--BEGIN .*PRIVATE KEY--/.test(pem)) {
throw new Error("did not export private pem: " + pem);
}
return Promise.all([
Keypairs.parse({ key: pem }).then(function (pair) {
if (!pair.private) {
throw new Error("should have private part");
}
if (!pair.public) {
throw new Error("should have public part also");
}
return true;
})
, Keypairs.parse({ key: pem, public: true }).then(function (pair) {
if (pair.private) {
throw new Error("should NOT have private part");
}
if (!pair.public) {
throw new Error("should have the public part though");
}
return true;
})
]).then(function () {
return true;
});
})
, Keypairs.parseOrGenerate({ key: 'not a key', public: true }).then(function (pair) {
// SHOULD have warning output
if (!pair.private || !pair.public) {
throw new Error("missing key pairs (should ignore 'public')");
}
return true;
})
, Keypairs.parse({ key: JSON.stringify(pair.private) }).then(function (pair) {
if (!pair.private || !pair.public) {
throw new Error("missing key pairs (stringified jwt)");
}
return true;
})
, Keypairs.parse({ key: JSON.stringify(pair.private), public: true }).then(function (pair) {
if (pair.private) {
throw new Error("has private key when it shouldn't");
}
if (!pair.public) {
throw new Error("doesn't have public key when it should");
}
return true;
})
, Keypairs.parse({ key: JSON.stringify(pair.public), private: true }).then(function () {
var err = new Error("should have thrown an error when private key was required and public jwk was given");
err.code = 'NOERR';
throw err;
}).catch(function (e) {
if ('NOERR' === e.code) { throw e; }
return true;
})
]).then(function (results) {
if (results.length && results.every(function (v) { return true === v; })) {
console.info("If a warning prints right above this, it's a pass");
console.log("PASS");
process.exit(0);
} else {
throw new Error("didn't get all passes (but no errors either)");
}
});
}).catch(function (e) {
console.error("Caught an unexpected (failing) error:");
console.error(e);
process.exit(1);
});