Merge pull request #19 from rsksmart/security-preparation

Security preparation

Readme.md

@@ -5,10 +5,11 @@ The intention of this library is to make easier to work with Bitcoin transaction
 ## Features
 
 The features of this library include:
-* Bitcoin transaction output parsing: is able to receive a raw tx and return an array of structs with the tx outputs
+* Bitcoin transaction output parsing: is able to receive a raw tx and return an array of structures with the tx outputs
 * Bitcoin transaction hashing: is able to receive a raw tx and return its hash
-* Bitcoin transaction output script validation: is able to receive a raw output script, validate that is from a specific type and return a result. E.g. receive a raw null-data script and return the embeded data in it
+* Bitcoin transaction output script validation: is able to receive a raw output script, validate that is from a specific type and return a result. E.g. receive a raw null-data script and return the embedded data in it
 * Bitcoin address generation: is able to generate Bitcoin the address from a specific script and also to validate if a given address was generated from a script or not.
+* Bitcoin address validation: is able to validate if a Bitcoin address is of a given type or not.
 
 ### Future features
 These are some features that can increase the library capabilities in the future:

contracts/BtcUtils.sol

@@ -72,7 +72,7 @@ library BtcUtils {
     }
 
     function extractRawOutput(uint position, bytes memory rawTx) private pure returns (TxRawOutput memory) {
-        TxRawOutput memory result;
+        TxRawOutput memory result = TxRawOutput(0, "", 0, 0);
         result.value = uint64(calculateLittleEndianFragment(position, position + OUTPUT_VALUE_SIZE, rawTx));
         position += OUTPUT_VALUE_SIZE;
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rsksmart/btc-transaction-solidity-helper",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Solidity library with functions to work with Bitcoin transactions inside smart contracts",
   "main": "contracts",
   "files": [