v1.0.7: bugfix for node v6

README.md

@@ -1,9 +1,8 @@
 [RSA-CSR.js](https://git.coolaj86.com/coolaj86/rsa-csr.js)
 ==========
 
-A [Root](https://therootcompany.com) Project.
-
-Built for [ACME.js](https://git.coolaj86.com/coolaj86/acme.js)
+Sponsored by [Root](https://therootcompany.com),
+built for [ACME.js](https://git.coolaj86.com/coolaj86/acme.js)
 and [Greenlock.js](https://git.coolaj86.com/coolaj86/greenlock-express.js)
 
 A focused, **zero-dependency** library that can do exactly one thing really, really well:
@@ -11,6 +10,10 @@ A focused, **zero-dependency** library that can do exactly one thing really, rea
 
 | < 300 lines of code | 1.7k gzipped | 4.7k minified | 8.5k with comments |
 
+Need JWK-to-PEM? Try [Rasha.js](https://git.coolaj86.com/coolaj86/rasha.js)
+
+Need to generate an EC CSR? Try [ECSDA-CSR.js](https://git.coolaj86.com/coolaj86/ecdsa-csr.js)
+
 Features
 ========
 
@@ -29,10 +32,6 @@ Features
 * [x] Vanilla Node.js
   * no school like the old school
   * easy to read and understand
-* [ ] JWK-to-PEM
-    * See [Rasha.js](https://git.coolaj86.com/coolaj86/rasha.js)
-* [ ] EC CSR
-    * See [ECSDA-CSR.js](https://git.coolaj86.com/coolaj86/ecdsa-csr.js)
 
 Usage
 -----
@@ -57,7 +56,7 @@ var key = {
 };
 var domains = [ 'example.com', 'www.example.com' ];
 
-return rsacsr({ jwk: key, domains: domains }).then(function (csr) {
+return rsacsr({ key: key, domains: domains }).then(function (csr) {
   console.log('CSR PEM:');
   console.log(csr);
 });

bin/rsa-csr.js

@@ -15,9 +15,13 @@ try {
   // ignore
 }
 
-rsacsr({ jwk: key, domains: domains }).then(function (csr) {
+var csr = rsacsr.sync({ key: key, domains: domains });
+console.log(csr);
+/*
+.then(function (csr) {
   // Using error so that we can redirect stdout to file
   //console.error("CN=" + domains[0]);
   //console.error("subjectAltName=" + domains.join(','));
   console.log(csr);
 });
+*/

lib/csr.js

@@ -11,64 +11,84 @@ var RSA = {};
 var CSR = module.exports = function rsacsr(opts) {
   // We're using a Promise here to be compatible with the browser version
   // which will probably use the webcrypto API for some of the conversions
-  return Promise.resolve().then(function () {
-    var Rasha;
-    opts = JSON.parse(JSON.stringify(opts));
-    var pem, jwk;
+  opts = CSR._prepare(opts);
 
-    // We do a bit of extra error checking for user convenience
-    if (!opts) { throw new Error("You must pass options with key and domains to rsacsr"); }
-    if (!Array.isArray(opts.domains) || 0 === opts.domains.length) {
-      new Error("You must pass options.domains as a non-empty array");
-    }
-
-    // I need to check that 例.中国 is a valid domain name
-    if (!opts.domains.every(function (d) {
-      // allow punycode? xn--
-      if ('string' === typeof d /*&& /\./.test(d) && !/--/.test(d)*/) {
-        return true;
-      }
-    })) {
-      throw new Error("You must pass options.domains as strings");
-    }
-
-    if (opts.pem) {
-      pem = opts.pem;
-    } else if (opts.jwk) {
-      jwk = opts.jwk;
-    } else {
-      if (!opts.key) {
-        throw new Error("You must pass options.key as a JSON web key");
-      } else if (opts.key.kty) {
-        jwk = opts.key;
-      } else {
-        pem = opts.key;
-      }
-    }
-
-    if (pem) {
-      try {
-        Rasha = require('rasha');
-      } catch(e) {
-        throw new Error("Rasha.js is an optional dependency for PEM-to-JWK.\n"
-          + "Install it if you'd like to use it:\n"
-          + "\tnpm install --save rasha\n"
-          + "Otherwise supply a jwk as the private key."
-        );
-      }
-      jwk = Rasha.importSync({ pem: pem });
-    }
-
-    opts.jwk = jwk;
-    return CSR.create(opts).then(function (bytes) {
-      return PEM.packBlock({
-        type: "CERTIFICATE REQUEST"
-      , bytes: bytes /* { jwk: jwk, domains: opts.domains } */
-      });
-    });
+  return CSR.create(opts).then(function (bytes) {
+    return CSR._encode(opts, bytes);
   });
 };
 
+CSR._prepare = function (opts) {
+  var Rasha;
+  opts = JSON.parse(JSON.stringify(opts));
+  var pem, jwk;
+
+  // We do a bit of extra error checking for user convenience
+  if (!opts) { throw new Error("You must pass options with key and domains to rsacsr"); }
+  if (!Array.isArray(opts.domains) || 0 === opts.domains.length) {
+    new Error("You must pass options.domains as a non-empty array");
+  }
+
+  // I need to check that 例.中国 is a valid domain name
+  if (!opts.domains.every(function (d) {
+    // allow punycode? xn--
+    if ('string' === typeof d /*&& /\./.test(d) && !/--/.test(d)*/) {
+      return true;
+    }
+  })) {
+    throw new Error("You must pass options.domains as strings");
+  }
+
+  if (opts.pem) {
+    pem = opts.pem;
+  } else if (opts.jwk) {
+    jwk = opts.jwk;
+  } else {
+    if (!opts.key) {
+      throw new Error("You must pass options.key as a JSON web key");
+    } else if (opts.key.kty) {
+      jwk = opts.key;
+    } else {
+      pem = opts.key;
+    }
+  }
+
+  if (pem) {
+    try {
+      Rasha = require('rasha');
+    } catch(e) {
+      throw new Error("Rasha.js is an optional dependency for PEM-to-JWK.\n"
+        + "Install it if you'd like to use it:\n"
+        + "\tnpm install --save rasha\n"
+        + "Otherwise supply a jwk as the private key."
+      );
+    }
+    jwk = Rasha.importSync({ pem: pem });
+  }
+
+  opts.jwk = jwk;
+  return opts;
+};
+CSR.sync = function (opts) {
+  opts = CSR._prepare(opts);
+  var bytes = CSR.createSync(opts);
+  return CSR._encode(opts, bytes);
+};
+CSR._encode = function (opts, bytes) {
+  if ('der' === (opts.encoding||'').toLowerCase()) {
+    return bytes;
+  }
+  return PEM.packBlock({
+    type: "CERTIFICATE REQUEST"
+  , bytes: bytes /* { jwk: jwk, domains: opts.domains } */
+  });
+};
+
+CSR.createSync = function createCsr(opts) {
+  var hex = CSR.request(opts.jwk, opts.domains);
+  var csr = CSR.signSync(opts.jwk, hex);
+  return Enc.hexToBuf(csr);
+};
 CSR.create = function createCsr(opts) {
   var hex = CSR.request(opts.jwk, opts.domains);
   return CSR.sign(opts.jwk, hex).then(function (csr) {
@@ -81,42 +101,52 @@ CSR.request = function createCsrBodyEc(jwk, domains) {
   return X509.packCsr(asn1pub, domains);
 };
 
+CSR.signSync = function csrEcSig(jwk, request) {
+  var keypem = PEM.packBlock({ type: "RSA PRIVATE KEY", bytes: X509.packPkcs1(jwk) });
+  var sig = RSA.signSync(keypem, Enc.hexToBuf(request));
+  return CSR.toDer({ request: request, signature: sig });
+};
 CSR.sign = function csrEcSig(jwk, request) {
   var keypem = PEM.packBlock({ type: "RSA PRIVATE KEY", bytes: X509.packPkcs1(jwk) });
-
   return RSA.sign(keypem, Enc.hexToBuf(request)).then(function (sig) {
-    var sty = ASN1('30'
-      // 1.2.840.113549.1.1.11 sha256WithRSAEncryption (PKCS #1)
-    , ASN1('06', '2a864886f70d01010b')
-    , ASN1('05')
-    );
-    return ASN1('30'
-      // The Full CSR Request Body
-    , request
-      // The Signature Type
-    , sty
-      // The Signature
-    , ASN1.BitStr(Enc.bufToHex(sig))
-    );
+    return CSR.toDer({ request: request, signature: sig });
   });
 };
+CSR.toDer = function encode(opts) {
+  var sty = ASN1('30'
+    // 1.2.840.113549.1.1.11 sha256WithRSAEncryption (PKCS #1)
+  , ASN1('06', '2a864886f70d01010b')
+  , ASN1('05')
+  );
+  return ASN1('30'
+    // The Full CSR Request Body
+  , opts.request
+    // The Signature Type
+  , sty
+    // The Signature
+  , ASN1.BitStr(Enc.bufToHex(opts.signature))
+  );
+};
 
 //
 // RSA
 //
 
 // Took some tips from https://gist.github.com/codermapuche/da4f96cdb6d5ff53b7ebc156ec46a10a
+RSA.signSync = function signRsaSync(keypem, ab) {
+  // Signer is a stream
+  var sign = crypto.createSign('SHA256');
+  sign.write(ab);
+  sign.end();
+
+  // The signature is ASN1 encoded, as it turns out
+  var sig = sign.sign(keypem);
+
+  // Convert to a JavaScript ArrayBuffer just because
+  return sig.buffer.slice(sig.byteOffset, sig.byteOffset + sig.byteLength);
+};
 RSA.sign = function signRsa(keypem, ab) {
   return Promise.resolve().then(function () {
-    // Signer is a stream
-    var sign = crypto.createSign('SHA256');
-    sign.write(ab);
-    sign.end();
-
-    // The signature is ASN1 encoded, as it turns out
-    var sig = sign.sign(keypem);
-
-    // Convert to a JavaScript ArrayBuffer just because
-    return sig.buffer.slice(sig.byteOffset, sig.byteOffset + sig.byteLength);
+    return RSA.signSync(keypem, ab);
   });
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rsa-csr",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "💯 A focused, zero-dependency library to generate a Certificate Signing Request (CSR) and sign it!",
   "homepage": "https://git.coolaj86.com/coolaj86/rsa-csr.js",
   "main": "index.js",