package: use safe-buffer

package.json

@@ -61,6 +61,7 @@
     "merkle-lib": "^2.0.10",
     "pushdata-bitcoin": "^1.0.1",
     "randombytes": "^2.0.1",
+    "safe-buffer": "^5.0.1",
     "typeforce": "^1.8.7",
     "varuint-bitcoin": "^1.0.4",
     "wif": "^2.0.1"

src/address.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var bs58check = require('bs58check')
 var bscript = require('./script')
 var networks = require('./networks')

src/block.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var bcrypto = require('./crypto')
 var fastMerkleRoot = require('merkle-lib/fastRoot')
 var typeforce = require('typeforce')

src/ecdsa.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var createHmac = require('create-hmac')
 var typeforce = require('typeforce')
 var types = require('./types')

src/hdnode.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var base58check = require('bs58check')
 var bcrypto = require('./crypto')
 var createHmac = require('create-hmac')

src/script.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var bip66 = require('bip66')
 var pushdata = require('pushdata-bitcoin')
 var typeforce = require('typeforce')

src/script_number.js

@@ -1,3 +1,5 @@
+var Buffer = require('safe-buffer').Buffer
+
 function decode (buffer, maxLength, minimal) {
   maxLength = maxLength || 4
   minimal = minimal === undefined ? true : minimal

src/templates/multisig/input.js

@@ -1,5 +1,6 @@
 // OP_0 [signatures ...]
 
+var Buffer = require('safe-buffer').Buffer
 var bscript = require('../../script')
 var typeforce = require('typeforce')
 var OPS = require('bitcoin-ops')

src/templates/scripthash/input.js

@@ -1,5 +1,6 @@
 // <scriptSig> {serialized scriptPubKey script}
 
+var Buffer = require('safe-buffer').Buffer
 var bscript = require('../../script')
 var typeforce = require('typeforce')
 

src/templates/witnesscommitment/output.js

@@ -1,5 +1,6 @@
 // OP_RETURN {aa21a9ed} {commitment}
 
+var Buffer = require('safe-buffer').Buffer
 var bscript = require('../../script')
 var types = require('../../types')
 var typeforce = require('typeforce')

src/transaction.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var bcrypto = require('./crypto')
 var bscript = require('./script')
 var bufferutils = require('./bufferutils')

src/transaction_builder.js

@@ -1,3 +1,4 @@
+var Buffer = require('safe-buffer').Buffer
 var baddress = require('./address')
 var bcrypto = require('./crypto')
 var bscript = require('./script')
@@ -367,9 +368,9 @@ function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScrip
 
 function buildStack (type, signatures, pubKeys, allowIncomplete) {
   if (type === scriptTypes.P2PKH) {
-    if (signatures.length === 1 && signatures[0] instanceof Buffer && pubKeys.length === 1) return bscript.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0])
+    if (signatures.length === 1 && Buffer.isBuffer(signatures[0]) && pubKeys.length === 1) return bscript.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0])
   } else if (type === scriptTypes.P2PK) {
-    if (signatures.length === 1 && signatures[0] instanceof Buffer) return bscript.pubKey.input.encodeStack(signatures[0])
+    if (signatures.length === 1 && Buffer.isBuffer(signatures[0])) return bscript.pubKey.input.encodeStack(signatures[0])
   } else if (type === scriptTypes.MULTISIG) {
     if (signatures.length > 0) {
       signatures = signatures.map(function (signature) {