Updated dist files.

dist/ethers-providers.js

@@ -1175,10 +1175,12 @@ module.exports = InfuraProvider;
 var Provider = require('./provider.js');
 
 var utils = (function() {
+    var convert = require('ethers-utils/convert');
     return {
         defineProperty: require('ethers-utils/properties').defineProperty,
 
-        hexlify: require('ethers-utils/convert').hexlify,
+        hexlify: convert.hexlify,
+        isHexString: convert.isHexString,
     }
 })();
 
@@ -1193,11 +1195,26 @@ function getResult(payload) {
     return payload.result;
 }
 
+function stripHexZeros(value) {
+    while (value.length > 3 && value.substring(0, 3) === '0x0') {
+        value = '0x' + value.substring(3);
+    }
+    return value;
+}
+
 function getTransaction(transaction) {
     var result = {};
+
     for (var key in transaction) {
         result[key] = utils.hexlify(transaction[key]);
     }
+
+    // Some nodes (INFURA ropsten; INFURA mainnet is fine) don't like extra zeros.
+    ['gasLimit', 'gasPrice', 'nonce', 'value'].forEach(function(key) {
+        if (!result[key]) { return; }
+        result[key] = stripHexZeros(result[key]);
+    });
+
     return result;
 }
 
@@ -1231,23 +1248,35 @@ utils.defineProperty(JsonRpcProvider.prototype, 'perform', function(method, para
             return this.send('eth_gasPrice', []);
 
         case 'getBalance':
-            return this.send('eth_getBalance', [params.address, params.blockTag]);
+            var blockTag = params.blockTag;
+            if (utils.isHexString(blockTag)) { blockTag = stripHexZeros(blockTag); }
+            return this.send('eth_getBalance', [params.address, blockTag]);
 
         case 'getTransactionCount':
-            return this.send('eth_getTransactionCount', [params.address, params.blockTag]);
+            var blockTag = params.blockTag;
+            if (utils.isHexString(blockTag)) { blockTag = stripHexZeros(blockTag); }
+            return this.send('eth_getTransactionCount', [params.address, blockTag]);
 
         case 'getCode':
-            return this.send('eth_getCode', [params.address, params.blockTag]);
+            var blockTag = params.blockTag;
+            if (utils.isHexString(blockTag)) { blockTag = stripHexZeros(blockTag); }
+            return this.send('eth_getCode', [params.address, blockTag]);
 
         case 'getStorageAt':
-            return this.send('eth_getStorageAt', [params.address, params.position, params.blockTag]);
+            var position = params.position;
+            if (utils.isHexString(position)) { position = stripHexZeros(position); }
+            var blockTag = params.blockTag;
+            if (utils.isHexString(blockTag)) { blockTag = stripHexZeros(blockTag); }
+            return this.send('eth_getStorageAt', [params.address, position, blockTag]);
 
         case 'sendTransaction':
             return this.send('eth_sendRawTransaction', [params.signedTransaction]);
 
         case 'getBlock':
             if (params.blockTag) {
-                return this.send('eth_getBlockByNumber', [params.blockTag, false]);
+                var blockTag = params.blockTag;
+                if (utils.isHexString(blockTag)) { blockTag = stripHexZeros(blockTag); }
+                return this.send('eth_getBlockByNumber', [blockTag, false]);
             } else if (params.blockHash) {
                 return this.send('eth_getBlockByHash', [params.blockHash, false]);
             }
@@ -5300,25 +5329,16 @@ function checkBlockTag(blockTag) {
 
     if (blockTag === 'earliest') { return '0x0'; }
 
-    if (typeof(blockTag) === 'number') {
-        blockTag = utils.hexlify(blockTag);
-    }
-
-    if (utils.isHexString(blockTag)) {
-        // HACK: This seems to be a weird requirement some nodes have
-        // (e.g. INFURA on ropsten; INFURA on homestead is fine)
-        // Remove leading 0's from the hex blockTag
-        while (blockTag.length > 3 && blockTag.substring(0, 3) === '0x0') {
-            blockTag = '0x' + blockTag.substring(3);
-        }
-
-        return blockTag;
-    }
-
     if (blockTag === 'latest' || blockTag === 'pending') {
         return blockTag;
     }
 
+    if (typeof(blockTag) === 'number') {
+        return utils.hexlify(blockTag);
+    }
+
+    if (utils.isHexString(blockTag)) { return blockTag; }
+
     throw new Error('invalid blockTag');
 }
 

dist/ethers-utils.js

@@ -217,6 +217,10 @@ defineProperty(BigNumber.prototype, 'lte', function(other) {
     return this._bn.lte(bigNumberify(other)._bn);
 });
 
+defineProperty(BigNumber.prototype, 'gt', function(other) {
+    return this._bn.gt(bigNumberify(other)._bn);
+});
+
 defineProperty(BigNumber.prototype, 'gte', function(other) {
     return this._bn.gte(bigNumberify(other)._bn);
 });
@@ -335,7 +339,7 @@ var defineProperty = require('./properties.js').defineProperty;
 var throwError = require('./throw-error');
 
 function isArrayish(value) {
-    if (!value || parseInt(value.length) != value.length) {
+    if (!value || parseInt(value.length) != value.length || typeof(value) === 'string') {
         return false;
     }
 

dist/ethers-wallet.js

@@ -10278,6 +10278,8 @@ var aes = require('aes-js');
 var scrypt = require('scrypt-js');
 var uuid = require('uuid');
 
+var hmac = require('ethers-utils/hmac');
+var pbkdf2 = require('ethers-utils/pbkdf2');
 var utils = require('ethers-utils');
 
 var SigningKey = require('./signing-key.js');
@@ -10343,6 +10345,7 @@ utils.defineProperty(secretStorage, 'isValidWallet', function(json) {
     if (!data.version || parseInt(data.version) !== data.version || parseInt(data.version) !== 3) {
         return false;
     }
+
     // @TODO: Put more checks to make sure it has kdf, iv and all that good stuff
     return true;
 });
@@ -10363,7 +10366,7 @@ utils.defineProperty(secretStorage, 'decryptCrowdsale', function(json, password)
         throw new Error('invalid encseed');
     }
 
-    var key = utils.pbkdf2(password, password, 2000, 32, utils.hmac.createSha256Hmac).slice(0, 16);
+    var key = pbkdf2(password, password, 2000, 32, hmac.createSha256Hmac).slice(0, 16);
 
     var iv = encseed.slice(0, 16);
     var encryptedSeed = encseed.slice(16);
@@ -10414,9 +10417,36 @@ utils.defineProperty(secretStorage, 'decrypt', function(json, password, progress
         return utils.keccak256(utils.concat([derivedHalf, ciphertext]));
     }
 
+    var getSigningKey = function(key, reject) {
+        var ciphertext = arrayify(searchPath(data, 'crypto/ciphertext'));
+
+        var computedMAC = utils.hexlify(computeMAC(key.slice(16, 32), ciphertext)).substring(2);
+        if (computedMAC !== searchPath(data, 'crypto/mac').toLowerCase()) {
+            reject(new Error('invalid password'));
+            return null;
+        }
+
+        var privateKey = decrypt(key.slice(0, 16), ciphertext);
+
+        if (!privateKey) {
+            reject(new Error('unsupported cipher'));
+            return null;
+        }
+
+        var signingKey = new SigningKey(privateKey);
+        if (signingKey.address !== utils.getAddress(data.address)) {
+            reject(new Error('address mismatch'));
+            return null;
+        }
+
+        return signingKey;
+    }
+
+
     return new Promise(function(resolve, reject) {
         var kdf = searchPath(data, 'crypto/kdf');
-        if (kdf && typeof(kdf) === 'string' && kdf.toLowerCase() === 'scrypt') {
+        if (kdf && typeof(kdf) === 'string') {
+            if (kdf.toLowerCase() === 'scrypt') {
                 var salt = arrayify(searchPath(data, 'crypto/kdfparams/salt'), 'crypto/kdfparams/salt');
                 var N = parseInt(searchPath(data, 'crypto/kdfparams/n'));
                 var r = parseInt(searchPath(data, 'crypto/kdfparams/r'));
@@ -10446,26 +10476,8 @@ utils.defineProperty(secretStorage, 'decrypt', function(json, password, progress
                     } else if (key) {
                         key = arrayify(key);
 
-                    var ciphertext = arrayify(searchPath(data, 'crypto/ciphertext'));
-
-                    var computedMAC = utils.hexlify(computeMAC(key.slice(16, 32), ciphertext)).substring(2);
-                    if (computedMAC !== searchPath(data, 'crypto/mac').toLowerCase()) {
-                        reject(new Error('invalid password'));
-                        return;
-                    }
-
-                    var privateKey = decrypt(key.slice(0, 16), ciphertext);
-
-                    if (!privateKey) {
-                        reject(new Error('unsupported cipher'));
-                        return;
-                    }
-
-                    var signingKey = new SigningKey(privateKey);
-                    if (signingKey.address !== utils.getAddress(data.address)) {
-                        reject(new Error('address mismatch'));
-                        return;
-                    }
+                        var signingKey = getSigningKey(key, reject);
+                        if (!signingKey) { return; }
 
                         if (progressCallback) { progressCallback(1); }
                         resolve(signingKey);
@@ -10475,11 +10487,42 @@ utils.defineProperty(secretStorage, 'decrypt', function(json, password, progress
                     }
                 });
 
+            } else if (kdf.toLowerCase() === 'pbkdf2') {
+                var salt = arrayify(searchPath(data, 'crypto/kdfparams/salt'), 'crypto/kdfparams/salt');
+
+                var prfFunc = null;
+                var prf = searchPath(data, 'crypto/kdfparams/prf');
+                if (prf === 'hmac-sha256') {
+                    prfFunc = hmac.createSha256Hmac;
+                } else if (prf === 'hmac-sha512') {
+                    prfFunc = hmac.createSha512Hmac;
+                } else {
+                    reject(new Error('unsupported prf'));
+                    return;
+                }
+
+                var c = parseInt(searchPath(data, 'crypto/kdfparams/c'));
+
+                var dkLen = parseInt(searchPath(data, 'crypto/kdfparams/dklen'));
+                if (dkLen !== 32) {
+                    reject( new Error('unsupported key-derivation derived-key length'));
+                    return;
+                }
+
+                var key = pbkdf2(password, salt, c, dkLen, prfFunc);
+
+                var signingKey = getSigningKey(key, reject);
+                if (!signingKey) { return; }
+
+                resolve(signingKey);
+
             } else {
-            // @TOOD: Support pbkdf2 kdf
                 reject(new Error('unsupported key-derivation function'));
             }
 
+        } else {
+            reject(new Error('unsupported key-derivation function'));
+        }
     });
 });
 
@@ -10601,7 +10644,7 @@ utils.defineProperty(secretStorage, 'encrypt', function(privateKey, password, op
 
 module.exports = secretStorage;
 
-},{"./signing-key.js":51,"aes-js":4,"ethers-utils":28,"scrypt-js":46,"uuid":49}],51:[function(require,module,exports){
+},{"./signing-key.js":51,"aes-js":4,"ethers-utils":28,"ethers-utils/hmac":27,"ethers-utils/pbkdf2":30,"scrypt-js":46,"uuid":49}],51:[function(require,module,exports){
 'use strict';
 
 /**