2、具备51%及以上算力是否能做到作假交易呢?
我认为仅考虑理论可行性(算法本身定义的处理数据的逻辑过程),是可以的。矿工不懂技术做不到,和是否能够有人做到,是两件事。最差情况下,可以花钱请技术牛人做到
此外,我也去学习了51%算力下能做什么,放一个google到的结果
https://learncryptography.com/cryptocurrency/51-attack
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There’s only a couple things someone with 51% of the network hashrate could do. They could prevent transactions of their choosing from gaining any confirmations, thus making them invalid, potentially preventing people from sending Bitcoins between addresses. They could also reverse transactions they send during the time they are in control (allowing double spend transactions)
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我就不翻译了,大意里,可以做到的事情包括:将正常交易判为无效,导致用户无法转账;实现double spend transactions,一份钱花两次