consensus change

src/block.rs

@@ -319,6 +319,7 @@ impl Block for DerivativeBlock {
         if !check_pow(
             &self.get_merkle_root(),
             &prev_block.get_info().difficulty,
+            self.transactions().unwrap_or(&[]),
             &self.default_info.pow,
         ) {
             return Ok(false);
@@ -413,6 +414,7 @@ impl Block for TransactionBlock {
         if !check_pow(
             &self.merkle_tree_root,
             &prev_block.get_info().difficulty,
+            self.transactions().unwrap_or(&[]),
             &self.default_info.pow,
         ) {
             return Ok(false);
@@ -548,6 +550,7 @@ impl Block for SummarizeBlock {
         if !check_pow(
             &self.merkle_tree_root,
             &prev_block.get_info().difficulty,
+            self.transactions().unwrap_or(&[]),
             &self.default_info.pow,
         ) {
             return Ok(false);

src/blockchaintree.rs

@@ -394,7 +394,7 @@ impl BlockChainTree {
                 )
             };
 
-        if !tools::check_pow(&prev_hash, &difficulty, pow) {
+        if !tools::check_pow(&prev_hash, &difficulty, &[], pow) {
             return Err(BlockChainTreeError::BlockChainTree(BCTreeErrorKind::WrongPow).into());
         };
         tools::recalculate_difficulty(prev_timestamp, timestamp, &mut difficulty);
@@ -426,7 +426,7 @@ impl BlockChainTree {
             .attach_printable("failed to hash block")?;
 
         let mut difficulty = last_block.get_info().difficulty;
-        if !tools::check_pow(&prev_hash, &difficulty, pow) {
+        if !tools::check_pow(&prev_hash, &difficulty, transactions, pow) {
             return Err(BlockChainTreeError::BlockChainTree(BCTreeErrorKind::WrongPow).into());
         };
         tools::recalculate_difficulty(last_block.get_info().timestamp, timestamp, &mut difficulty);

src/tools.rs

@@ -1,5 +1,7 @@
 use crate::errors::*;
+use crate::merkletree::MerkleTree;
 use crate::static_values::{FEE_STEP, TIME_PER_BLOCK};
+use crate::transaction::{Transaction, Transactionable};
 use crate::types::Hash;
 use error_stack::{Report, Result, ResultExt};
 use num_bigint::BigUint;
@@ -195,9 +197,16 @@ pub fn count_leading_zeros(data: &[u8]) -> u32 {
     to_return
 }
 
-pub fn check_pow(hash: &[u8; 32], difficulty: &[u8; 32], pow: &[u8]) -> bool {
+pub fn check_pow(
+    hash: &[u8; 32],
+    difficulty: &[u8; 32],
+    transactions: &[Hash],
+    pow: &[u8],
+) -> bool {
+    let merkle_tree = MerkleTree::build_tree(transactions);
     let mut hasher = Sha256::new();
     hasher.update(hash);
+    hasher.update(merkle_tree.get_root());
     hasher.update(pow);
     let result: [u8; 32] = hasher.finalize().into();