v1.0.0: full PEM-to-JWK support

README.md

@@ -1,19 +1,19 @@
 eckles.js
 =========
 
-ECDSA tools. Lightweight. Zero Dependencies. Universal compatibility.
+ECDSA (elliptic curve) tools. Lightweight. Zero Dependencies. Universal compatibility.
 
 * [x] PEM-to-JWK
-* [ ] JWK-to-PEM (partial)
+* [x] JWK-to-PEM
 
-### PEM-to-JWK
+## PEM-to-JWK
 
 * [x] SEC1/X9.62, PKCS#8, SPKI/PKIX
 * [x] P-256 (prime256v1, secp256r1), P-384 (secp384r1)
 
 ```js
 var eckles = require('eckles');
-var pem = require('fs').readFileSync('./fixtures/privkey-ec-p256.sec1.pem', 'ascii')
+var pem = require('fs').readFileSync('eckles/fixtures/privkey-ec-p256.sec1.pem', 'ascii');
 
 eckles.import({ pem: pem }).then(function (jwk) {
   console.log(jwk);
@@ -30,15 +30,17 @@ eckles.import({ pem: pem }).then(function (jwk) {
 }
 ```
 
-### JWK-to-PEM
+## JWK-to-PEM
 
-* [x] SEC1/X9.62
+* [x] SEC1/X9.62, PKCS#8, SPKI/PKIX
 * [x] P-256 (prime256v1, secp256r1), P-384 (secp384r1)
 
-
 ```js
+var eckles = require('eckles');
+var jwk = require('eckles/fixtures/privkey-ec-p256.jwk.json');
+
 eckles.export({ jwk: jwk }).then(function (pem) {
-  // PEM in sec1 (x9.62) format
+  // PEM in SEC1 (x9.62) format
   console.log(pem);
 });
 ```
@@ -51,14 +53,32 @@ yZe7CnFsqeDcpnPbubP6cpYiVcnevNIYyg==
 -----END EC PRIVATE KEY-----
 ```
 
-<!--
+#### Advanced
+
+`format: 'pkcs8'`:
+
+The default output format is `sec1`/`x9.62` (EC-specific format) is used for private keys.
+Use `format: 'pkcs8'` to output in PKCS#8 format instead.
+
+```js
+eckles.export({ jwk: jwk, format: 'pkcs8' }).then(function (pem) {
+  // PEM in PKCS#8 format
+  console.log(pem);
+});
+```
+
+`public: 'true'`:
+
+If a private key is used as input, a private key will be output.
+
+If you'd like to output a public key instead you can pass `public: true` or `format: 'spki'`.
+
 ```js
-eckles.exportSEC1(jwk).then(function (pem) {
-  // PEM in sec1 (x9.62) format
+eckles.export({ jwk: jwk, public: true }).then(function (pem) {
+  // PEM in SPKI/PKIX format
   console.log(pem);
 });
 ```
--->
 
 Goals
 -----

lib/eckles.js

@@ -14,7 +14,7 @@ var OBJ_ID_EC_384 = '06 05 2B81040022'.replace(/\s+/g, '').toLowerCase();
 
 // 1.2.840.10045.2.1
 // ecPublicKey (ANSI X9.62 public key type)
-//var OBJ_ID_EC_PUB = '06 07 2A8648CE3D0201'.replace(/\s+/g, '').toLowerCase();
+var OBJ_ID_EC_PUB = '06 07 2A8648CE3D0201'.replace(/\s+/g, '').toLowerCase();
 
 
 // The one good thing that came from the b***kchain hysteria: good EC documentation
@@ -325,9 +325,9 @@ EC.pack = function (opts) {
     if ('sec1' === format) {
       return PEM.packBlock({ type: "EC PRIVATE KEY", bytes: EC.packSec1(jwk) });
     } else if ('pkcs8' === format) {
-      throw new Error("pkcs8 output not implemented");
+      return PEM.packBlock({ type: "EC PRIVATE KEY", bytes: EC.packPkcs8(jwk) });
     } else {
-      throw new Error("spki not implemented");
+      return PEM.packBlock({ type: "PUBLIC KEY", bytes: EC.packSpki(jwk) });
     }
   });
 };
@@ -350,10 +350,32 @@ EC.packPkcs8 = function (jwk) {
   var x = toHex(base64ToUint8(urlBase64ToBase64(jwk.x)));
   var y = toHex(base64ToUint8(urlBase64ToBase64(jwk.y)));
   var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
+  return Hex.toUint8(
+    ASN1('30'
+    , ASN1.UInt('00')
+    , ASN1('30'
+      , OBJ_ID_EC_PUB
+      , objId
+      )
+    , ASN1('04'
+      , ASN1('30'
+        , ASN1.UInt('01')
+        , ASN1('04', d)
+        , ASN1('A1', ASN1.BitStr('04' + x + y)))))
+  );
 };
 EC.packSpki = function (jwk) {
   var x = toHex(base64ToUint8(urlBase64ToBase64(jwk.x)));
   var y = toHex(base64ToUint8(urlBase64ToBase64(jwk.y)));
+  var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
+  return Hex.toUint8(
+    ASN1('30'
+    , ASN1('30'
+      , OBJ_ID_EC_PUB
+      , objId
+      )
+    , ASN1.BitStr('04' + x + y))
+  );
 };
 EC.packPkix = EC.packSpki;
 

package.json

@@ -1,12 +1,17 @@
 {
   "name": "eckles",
-  "version": "0.7.2",
+  "version": "1.0.0",
   "description": "PEM-to-JWK and JWK-to-PEM for ECDSA keys in a lightweight, zero-dependency library focused on perfect universal compatibility.",
   "homepage": "https://git.coolaj86.com/coolaj86/eckles.js",
   "main": "index.js",
   "bin": {
     "eckles": "bin/eckles.js"
   },
+  "files": [
+    "bin",
+    "fixtures",
+    "lib"
+  ],
   "directories": {
     "lib": "lib"
   },

test.sh

@@ -3,26 +3,53 @@ set -e
 
 echo ""
 echo ""
-node bin/eckles.js fixtures/privkey-ec-p256.sec1.pem
-node bin/eckles.js fixtures/privkey-ec-p256.pkcs8.pem
-node bin/eckles.js fixtures/pub-ec-p256.spki.pem
+echo "Testing PEM-to-JWK P-256"
+echo ""
+node bin/eckles.js fixtures/privkey-ec-p256.sec1.pem | tee fixtures/privkey-ec-p256.jwk.2
+diff fixtures/privkey-ec-p256.jwk.json fixtures/privkey-ec-p256.jwk.2
+node bin/eckles.js fixtures/privkey-ec-p256.pkcs8.pem | tee fixtures/privkey-ec-p256.jwk.2
+diff fixtures/privkey-ec-p256.jwk.json fixtures/privkey-ec-p256.jwk.2
+node bin/eckles.js fixtures/pub-ec-p256.spki.pem | tee fixtures/pub-ec-p256.jwk.2
+diff fixtures/pub-ec-p256.jwk.json fixtures/pub-ec-p256.jwk.2
 
 echo ""
 echo ""
-node bin/eckles.js fixtures/privkey-ec-p384.sec1.pem
-node bin/eckles.js fixtures/privkey-ec-p384.pkcs8.pem
-node bin/eckles.js fixtures/pub-ec-p384.spki.pem
+echo "Testing PEM-to-JWK P-384"
+echo ""
+node bin/eckles.js fixtures/privkey-ec-p384.sec1.pem | tee fixtures/privkey-ec-p384.jwk.2
+diff fixtures/privkey-ec-p384.jwk.json fixtures/privkey-ec-p384.jwk.2
+node bin/eckles.js fixtures/privkey-ec-p384.pkcs8.pem | tee fixtures/privkey-ec-p384.jwk.2.2
+diff fixtures/privkey-ec-p384.jwk.json fixtures/privkey-ec-p384.jwk.2.2
+node bin/eckles.js fixtures/pub-ec-p384.spki.pem | tee fixtures/pub-ec-p384.jwk.2
+diff fixtures/pub-ec-p384.jwk.json fixtures/pub-ec-p384.jwk.2
 
 echo ""
 echo ""
-node bin/eckles.js fixtures/privkey-ec-p256.jwk sec1
-node bin/eckles.js fixtures/privkey-ec-p256.jwk pkcs8
-node bin/eckles.js fixtures/pub-ec-p256.jwk spki
+echo "Testing JWK-to-PEM P-256"
+echo ""
+node bin/eckles.js fixtures/privkey-ec-p256.jwk.json sec1 | tee fixtures/privkey-ec-p256.sec1.pem.2
+diff fixtures/privkey-ec-p256.sec1.pem fixtures/privkey-ec-p256.sec1.pem.2
+node bin/eckles.js fixtures/privkey-ec-p256.jwk.json pkcs8 | tee fixtures/privkey-ec-p256.pkcs8.pem.2
+diff fixtures/privkey-ec-p256.pkcs8.pem fixtures/privkey-ec-p256.pkcs8.pem.2
+node bin/eckles.js fixtures/pub-ec-p256.jwk.json spki | tee fixtures/pub-ec-p256.spki.pem.2
+diff fixtures/pub-ec-p256.spki.pem fixtures/pub-ec-p256.spki.pem.2
 
 echo ""
 echo ""
-node bin/eckles.js fixtures/privkey-ec-p384.jwk sec1
-node bin/eckles.js fixtures/privkey-ec-p384.jwk pkcs8
-node bin/eckles.js fixtures/pub-ec-p384.jwk spki
+echo "Testing JWK-to-PEM P-384"
+echo ""
+node bin/eckles.js fixtures/privkey-ec-p384.jwk.json sec1 | tee fixtures/privkey-ec-p384.sec1.pem.2
+diff fixtures/privkey-ec-p384.sec1.pem fixtures/privkey-ec-p384.sec1.pem.2
+node bin/eckles.js fixtures/privkey-ec-p384.jwk.json pkcs8 | tee fixtures/privkey-ec-p384.pkcs8.pem.2
+diff fixtures/privkey-ec-p384.pkcs8.pem fixtures/privkey-ec-p384.pkcs8.pem.2
+node bin/eckles.js fixtures/pub-ec-p384.jwk.json spki | tee fixtures/pub-ec-p384.spki.pem.2
+diff fixtures/pub-ec-p384.spki.pem fixtures/pub-ec-p384.spki.pem.2
 
+rm fixtures/*.2
+
+echo ""
+echo ""
+echo "PASSED:"
+echo "• All inputs produced valid outputs"
+echo "• All outputs matched known-good values"
 echo ""