All Questions
Tagged with cryptocurrency post-quantum-cryptography
7 questions
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Quantum-safe algorithm for hiding cryptocurrency transaction amount [closed]
I have a decentralized coin system that I am trying to develop.
Each coin can be split up into 1,000,000 units.
I've been looking for a quantum-safe and practical (efficient) algorithm to send ...
- 91
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Can we reduce the size of the XMSS signature?
As XMSS is post-quantum we can use it to secure blockchain. One of the main disadvantage of XMSS is its signature size. If we can reduce the size of the signature then we can use XMSS in the ...
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Will IBM's Condor quantum processor run Shor's Algorithm to crack a 256-bit Elliptic Curve key?
Yesterday IBM announced that they have a 433 bit quantum computer, called Osprey. There is nothing in the press releases I can find that says whether it can or cannot run Shor's Algorithm.
They also ...
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Why are public keys derived from elliptic curve cryptography (ECC) and not from hashing?
I've just started studying Bitcoin and cryptocurrencies, so I might be wrong, but so far my understanding is that public keys are derived from private keys using ECDSA, in Bitcoin's case using ...
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How to associate a post-quantum public key with a pre-quantum one in blockchains?
As a layperson, I'm curious if a cryptocurrency could fork to a quantum-resistant algorithm without people losing access to their wallets. Is it possible to generate a quantum-resistant public key ...
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Post-quantum aggregate / multi signatures
Are there any practical post-quantum aggregate / multi signatures?
Currently, the aggregate / multi signature schemes seem to be limited to pre-quantum elliptic curve assumptions only, e.g., [BDN18], [...
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8
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What are the characteristics of a quantum secure protocol?
What are the characteristics of quantum secure protocol, and does it always need to be information theoretic to be called as quantum secure? Are the current techniques used in bitcoins quantum secure?
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