Questions tagged [schnorr-signatures]

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aggregated signatures for combining payments over a low bandwidth mesh network

Background I'm researching how in a low bandwidth mesh network payment transactions from nodes can be combined to reduce the bandwidth used for payments. Aggregated signatures seem like a useful ...
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1answer
1k views

Replacing ECDSA (SECP256k1) with Schnorr signatures

On March 23, 2017 the Bitcoin Core team published a technology roadmap, expressing their intent to replace ECDSA (SECP256k1) with Schnorr signatures: https://bitcoincore.org/en/2017/03/23/schnorr-...
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2answers
2k views

Are Schnorr signatures quantum-computer resistant?

Here (https://bitcoincore.org/en/2017/03/23/schnorr-signature-aggregation/) it says Schnorr replaces ECDSA, we know that ECDSA can be broken by quantum computers. Is Schnorr safe from q-computers?
8
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1answer
1k views

Why was the Schnorr code removed from Bitcoin Core?

I was looking for the Schnorr implementation in Bitcoin Core and was surprised to see that it was removed on Nov 2016 (commit e06e878fd7dcc99825025fa99aedb86bc7d5c29f). Why was the source code ...
3
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1answer
365 views

Does the introduction of Schnorr signatures require segwit?

What is the relationship of segwit and Schnorr signatures? Is segwit a prerequisit for Schnorr signatures? I've read that the transaction versioning of Segregated Witness would allow to just assign ...
4
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0answers
170 views

How does schnorr signature construct multisig functionality?

How does the multiparty schnorr signature work and enable multisig functionality in Bitcoin? What are its limitations? Can we construct any m of n signature? Is there anyway to hide the signers among ...
25
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3answers
5k views

What are the implications of Schnorr signatures?

Adam Back (adam3us) explained in March, 2014, but it is all math. There's another short post with advantages, though. This answer on crypto.SE claims that Bitcoin considered using Ed25519 which is ...
43
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5answers
47k views

How do you get a Bitcoin Public Key from a Private Key

How do I, in extreme specificity, convert a given private bitcoin key into a public bitcoin key (Talk to me like I'm 5 and I have to do this step by step or the evil witch will cook me alive in her ...

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