Quantum Computing a 'Near-Term Threat' to Bitcoin and Ethereum: IBM's VP of Blockchain : doifeellucky's twitter Feed : 2019/03/26 08:48:31

in #share2steem6 years ago (edited)

Quantum Computing a 'Near-Term Threat' to Bitcoin and Ethereum: IBM's VP of Blockchain

#share2steem #quantum #threat #crypto



External Link : https://dailyhodl.com/2019/03/17/quantum-computing-a-near-term-threat-to-bitcoin-and-ethereum-ibms-vp-of-blockchain/

Quantum Computing a 'Near-Term Threat' to Bitcoin and Ethereum: IBM's VP of Blockchain | The Daily Hodl

In a new interview with Fred Schebesta of Finder.com, IBM executives discuss the threat of quantum computing against cryptocurrencies and blockchain cryptography. Appearing at IBM Think 2019, Jesse Lund, vice president of blockchain and digital currencies at IBM says, “It’s reverse engineering the private keys which represent the control of your wallet. Your public key […]




doifeellucky


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about mining if those used to mining bitcoin or another crypto , it's able to do 51% attack!

Some papers on the threat viability of quantum computing being used for this suggest so. The low ball fear that is voiced in some places that using an quantum computer to crack keys seems even scarier. This would tear everything down... However I don't think that this would be in reach very fast. When you look at the know use cases and possibilities so far it seems far fetched.

True

Also... in this article https://medium.com/@qrcollector/quantum-resistant-blockchain-and-cryptocurrency-the-full-analysis-in-seven-parts-part-1-daa211565a68

Conclusion: security in transaction handling and registration, relies on math.

The construction and continuation of the blockchain itself relies on hashing algorithms.
The signing of transactions relies on private- public key cryptography. No existing computer can make calculations fast enough to reverse this math in any usable time frame.

Summarized, the security and reliability of blockchain is double-barreled. First it takes away the interference of a third party that places and/ or can alter the data on the ledger. Secondly it relies on verifiable, but unforgeable math. This is what makes blockchain more trustworthy than conventional ledger systems.

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