diff --git a/README.md b/README.md
index 65662c3..ede700c 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,10 @@ npm install -g ssh-to-jwk
 ssh-to-jwk ~/.ssh/id_rsa.pub
 ```
 
+```bash
+ssh-to-jwk ~/.ssh/id_rsa
+```
+
 # Usage
 
 You can also use it from JavaScript:
@@ -61,10 +65,13 @@ You can also use it from JavaScript:
 ```js
 var fs = require('fs');
 var sshtojwk = require('ssh-to-jwk');
+var ssh;
 
-var pub = fs.readFileSync("./id_rsa.pub");
-var ssh = sshtojwk.parse({ pub: pub });
+ssh = sshtojwk.parse({ pub: fs.readFileSync("./id_rsa.pub") });
+console.info(ssh.jwk);
 
+// For OpenSSH PEMs only, use Rasha for standard RSA or Eckles for standard EC
+ssh = sshtojwk.parse({ pem: fs.readFileSync("./id_rsa") });
 console.info(ssh.jwk);
 ```
 
diff --git a/bin/ssh-to-jwk.js b/bin/ssh-to-jwk.js
index be056c2..de3aea3 100755
--- a/bin/ssh-to-jwk.js
+++ b/bin/ssh-to-jwk.js
@@ -6,17 +6,27 @@ var path = require('path');
 var sshtojwk = require('../index.js');
 
 var pubfile = process.argv[2];
+var pub = process.argv[3];
 
 if (!pubfile) {
   pubfile = path.join(require('os').homedir(), '.ssh/id_rsa.pub');
 }
 
 var buf = fs.readFileSync(pubfile);
-var pub = buf.toString('ascii');
-var ssh = sshtojwk.parse({ pub: pub });
+var txt = buf.toString('ascii');
+var opts = { public: 'public' === pub };
+var ssh;
+
+if ('-' === txt[0]) {
+  opts.pem = txt;
+} else {
+  opts.pub = txt;
+}
+
+ssh = sshtojwk.parse(opts);
 
 // Finally! https://superuser.com/a/714195
-sshtojwk.fingerprint({ pub: pub }).then(function (fingerprint) {
+sshtojwk.fingerprint(ssh).then(function (fingerprint) {
   console.warn('The key fingerprint is:\n' + fingerprint + ' ' + ssh.comment);
   console.info(JSON.stringify(ssh.jwk, null, 2));
 });
diff --git a/lib/ssh-parser.js b/lib/ssh-parser.js
index 3c18dfd..a9e464f 100644
--- a/lib/ssh-parser.js
+++ b/lib/ssh-parser.js
@@ -5,7 +5,7 @@ var Enc = require('./encoding.js');
 var PEM = require('./pem.js');
 
 SSH.parse = function (opts) {
-  var pub = opts.pub || opts;
+  var pub = opts.pem || opts.pub || opts;
   var ssh = SSH.parseBlock(pub);
   if ('OPENSSH PRIVATE KEY' === ssh.type) {
     ssh = SSH.parsePrivateElements(ssh);
@@ -57,6 +57,7 @@ SSH.parsePrivateElements = function (ssh) {
   var index = 0;
   var padlen = 0;
   var len;
+  var pub;
 
   // The last byte will be either
   //   * a non-printable pad character
@@ -91,6 +92,7 @@ SSH.parsePrivateElements = function (ssh) {
   len = dv.getUint32(index, false);
   // throw away public key (it's in the private key)
   index += 4 + len;
+  pub = ssh.bytes.slice(index - len, index);
 
   // length of dummy checksum + private key + padding
   len = dv.getUint32(index, false) - padlen;
@@ -105,6 +107,7 @@ SSH.parsePrivateElements = function (ssh) {
 
   // comment will exist, even if it's an empty string
   ssh.comment = Enc.bufToBin(ssh.elements.pop());
+  ssh.bytes = pub;
   return ssh;
 };
 SSH.parseElements = function (buf) {
diff --git a/package.json b/package.json
index 4833e7a..2d1c2a5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ssh-to-jwk",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "💯 SSH to JWK in a lightweight, zero-dependency library.",
   "homepage": "https://git.coolaj86.com/coolaj86/ssh-to-jwk.js",
   "main": "index.js",