A Merkle tree is therefore an efficient example of a cryptographic commitment scheme, in which the root of the tree is seen as a commitment and leaf nodes may be revealed and proven to be part of the original commitment. Conversely, in a hash list, the number is proportional to the number of leaf nodes itself. A hash tree is a generalization of a hash list and a hash chain.ĭemonstrating that a leaf node is a part of a given binary hash tree requires computing a number of hashes proportional to the logarithm of the number of leaf nodes in the tree. A hash tree allows efficient and secure verification of the contents of a large data structure.

In cryptography and computer science, a hash tree or Merkle tree is a tree in which every 'leaf' ( node) is labelled with the cryptographic hash of a data block, and every node that is not a leaf (called a branch, inner node, or inode) is labelled with the cryptographic hash of the labels of its child nodes.

Hashes 0-0 and 0-1 are the hash values of data blocks L1 and L2, respectively, and hash 0 is the hash of the concatenation of hashes 0-0 and 0-1.

Update node version windows