cryptography - Merkle 树 2nd 原像攻击防御 - 预先添加特定字节值

Question

来自https://github.com/fmerg/pymerkle

 Defense against second-preimage attack consists in the following security measures:
    - Before computing the hash of a leaf, prepend the corresponding record with 0x00
    - Before computing the hash of any interior node, prepend both of its parents' hashes with 0x01

（我知道 0x00 和 0x01 只是“特定的字节值”，它们可以是任何东西）

为什么这行得通？

理论上，攻击者不能找到以 0x00 开头的伪造内容的叶子哈希吗？

预先添加父节点的哈希节点有什么好处？