diff options
Diffstat (limited to 'src/consensus/merkle.cpp')
| -rw-r--r-- | src/consensus/merkle.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/consensus/merkle.cpp b/src/consensus/merkle.cpp index 843985e54c..241cc316a6 100644 --- a/src/consensus/merkle.cpp +++ b/src/consensus/merkle.cpp @@ -10,7 +10,7 @@ that the following merkle tree algorithm has a serious flaw related to duplicate txids, resulting in a vulnerability (CVE-2012-2459). - The reason is that if the number of hashes in the list at a given time + The reason is that if the number of hashes in the list at a given level is odd, the last one is duplicated before computing the next level (which is unusual in Merkle trees). This results in certain sequences of transactions leading to the same merkle root. For example, these two |