fix use of lowercase constructor

sign.js

@@ -1,10 +1,12 @@
 // much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
-var parseKeys = require('parse-asn1')
-var BN = require('bn.js')
-var elliptic = require('elliptic')
-var crt = require('browserify-rsa')
 var createHmac = require('create-hmac')
+var crt = require('browserify-rsa')
 var curves = require('./curves')
+var elliptic = require('elliptic')
+var parseKeys = require('parse-asn1')
+
+var BN = require('bn.js')
+var EC = elliptic.ec
 
 function sign (hash, key, hashType, signType) {
   var priv = parseKeys(key)
@@ -35,15 +37,14 @@ function sign (hash, key, hashType, signType) {
 
 function ecSign (hash, priv) {
   var curveId = curves[priv.curve.join('.')]
-  if (!curveId) {
-    throw new Error('unknown curve ' + priv.curve.join('.'))
-  }
-
-  var curve = new elliptic.ec(curveId)
+  if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.'))
 
+  var curve = new EC(curveId)
   var key = curve.genKeyPair()
+
   key._importPrivate(priv.privateKey)
   var out = key.sign(hash)
+
   return new Buffer(out.toDER())
 }
 

verify.js

@@ -1,8 +1,10 @@
 // much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
-var parseKeys = require('parse-asn1')
-var elliptic = require('elliptic')
 var curves = require('./curves')
+var elliptic = require('elliptic')
+var parseKeys = require('parse-asn1')
+
 var BN = require('bn.js')
+var EC = elliptic.ec
 
 function verify (sig, hash, key, signType) {
   var pub = parseKeys(key)
@@ -60,7 +62,7 @@ function ecVerify (sig, hash, pub) {
   var curveId = curves[pub.data.algorithm.curve.join('.')]
   if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.'))
 
-  var curve = new elliptic.ec(curveId)
+  var curve = new EC(curveId)
   var pubkey = pub.data.subjectPrivateKey.data
 
   return curve.verify(hash, sig, pubkey)