use bn.toBuffer.

lib/bcoin/chainblock.js

@@ -252,7 +252,7 @@ ChainBlock.prototype.toRaw = function toRaw() {
   p.writeU32(this.bits);
   p.writeU32(this.nonce);
   p.writeU32(this.height);
-  p.writeBytes(new Buffer(this.chainwork.toArray('le', 32)));
+  p.writeBytes(this.chainwork.toBuffer('le', 32));
 
   return p.render();
 };

lib/bcoin/ec.js

@@ -37,7 +37,7 @@ ec.generatePrivateKey = function generatePrivateKey() {
     } while (!secp256k1.privateKeyVerify(priv));
   } else {
     key = ec.elliptic.genKeyPair();
-    priv = new Buffer(key.getPrivate().toArray('be', 32));
+    priv = key.getPrivate().toBuffer('be', 32);
   }
 
   return priv;

lib/bcoin/hd.js

@@ -579,10 +579,10 @@ HDPrivateKey.prototype.derive = function derive(index, hardened) {
   leftPart = new bn(hash.slice(0, 32));
   chainCode = hash.slice(32, 64);
 
-  privateKey = new Buffer(leftPart
+  privateKey = leftPart
     .add(new bn(this.privateKey))
     .mod(ec.elliptic.curve.n)
-    .toArray('be', 32));
+    .toBuffer('be', 32);
 
   if (!this.fingerPrint) {
     this.fingerPrint = utils.ripesha(this.publicKey)

lib/bcoin/miner.js

@@ -226,7 +226,7 @@ Miner.prototype.createBlock = function createBlock() {
       // of ours. This isn't really
       // necessary nowdays due to bip34
       // (used above).
-      new Buffer(utils.nonce().toArray()),
+      utils.nonce().toBuffer(),
       // Let the world know this little
       // miner succeeded.
       new Buffer(this.coinbaseFlags || 'mined by bcoin', 'ascii')
@@ -276,7 +276,7 @@ Miner.prototype.updateCoinbase = function updateCoinbase(block) {
   if (!block)
     block = this.block;
 
-  coinbase.inputs[0].script[1] = new Buffer(block.extraNonce.toArray());
+  coinbase.inputs[0].script[1] = block.extraNonce.toBuffer();
   coinbase.outputs[0].value = reward.add(this.fee);
 };
 

lib/bcoin/output.js

@@ -38,8 +38,6 @@ function Output(options, tx) {
   // Numbers, do not allow negative values.
   assert(typeof value !== 'number');
   assert(!this.value.isNeg());
-  assert(this.value.bitLength() <= 63);
-  assert(!(this.value.toArray('be', 8)[0] & 0x80));
 }
 
 Output.prototype.__defineGetter__('type', function() {

lib/bcoin/script.js

@@ -1188,7 +1188,7 @@ Script.array = function(value) {
   if (value.cmpn(0) === 0)
     return new Buffer([]);
 
-  return new Buffer(value.toArray('le'));
+  return value.toBuffer('le');
 };
 
 Script.prototype.removeData = function removeData(data) {

lib/bcoin/utils.js

@@ -1912,3 +1912,9 @@ SyncBatch.prototype.clear = function clear() {
 };
 
 utils.SyncBatch = SyncBatch;
+
+if (utils.isBrowser) {
+  bn.prototype.toBuffer = function toBuffer(order, size) {
+    return new Buffer(this.toArray(order, size));
+  };
+}

lib/bcoin/workers.js

@@ -209,7 +209,7 @@ function createBody(name, items) {
           } else if (item instanceof bcoin.coin) {
             p.writeU8(8);
             p.writeVarBytes(item.toExtended());
-          } else if (item instanceof bn)
+          } else if (item instanceof bn) {
             p.writeU8(9);
             p.writeVarBytes(item.toBuffer());
           } else if (Buffer.isBuffer(item)) {