In 2020 Sala, Sogiorno and Taufer have been able to find the private keys of some Bitcoin addresses, thus being able to spend the cryptocurrency linked to them. This result was unexpected, since the recovery of non-trivial private keys for blockchain addresses is deemed to be an infeasible problem. In this paper we widen this analysis by mounting a similar attack to other small subsets of the set of private keys. We then apply it to other blockchains as well, examining Ethereum, Dogecoin, Litecoin, Dash, Zcash and Bitcoin Cash. In addition to the results, we also explain the techniques we have used to perform this exhaustive search for all the addresses that have ever appeared in these blockchains.
翻译：2020年,Sala、Sogiorno和Taufer找到了一些Bitcoin地址的私人钥匙,从而能够花费与其相关的加密货币。这一结果出乎意料,因为回收用于块链地址的非三联私人钥匙被认为是一个不可行的问题。在本文中,我们扩大了这一分析的范围,对一组私人钥匙中的其他小部分进行了类似的攻击。然后,我们将其应用到其他块链中,检查Ethereum、Dogecoin、Litecoin、Dash、Zcash和Bitcoin Cash。除了结果外,我们还解释了我们用来对这些块链中曾经出现的所有地址进行彻底搜索的技术。
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