All Questions
Tagged with cryptocurrency secp256k1
6 questions
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Can parties in an MPC protocol establish a shared secret with an external party?
Creating a shared secret(ECDH) with a single private key is easy:
a·B = b·A
Does the same apply to MPC? and if so how?
Based on Gennaro and Goldfeder CCS 2018
2
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1
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5
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In Bitcoin, given half the 52-character private key in WIF format, is it possible to reconstruct the whole private key?
Given the following two preconditions:
It is almost impossible to reconstruct a bitcoin private key if an attacker only has one half of the private key as well as the public key.
It is almost ...
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Modulo p in Elliptic Curve Cryptography
To carry out Elliptic Curve Cryptography between parties, are all elliptic curve equations considered to be in the form $\bmod p$?
For example, the $secp256k1$ Bitcoin curve of the equation $y^2=x^3+7$...
- 43
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Fully understanding bitcoin transcation verifying and secp256k1
Hello fellow cryptographers.
I have spent last few days trying to understand and find a way to generate secp256k1 private and public keys from scratch, but i failed.
I have seen tons of videos and ...
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Bitcoin Key Recovery Without Nonce Re-Use
There are a lot of questions in these forums regarding the recovery of private keys.
But I'm here to postulate on something unique to a specific piece of research that I looked into recently.
The ...
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