(Very) Basic Intro To Elliptic Curve Cryptography - Qvault

1Block: passwordless authentication using Blockchain technology.

1Block is a passwordless authentication protocol using the same Elliptic Curve Cryptography used for Bitcoin. No more passwords to remember, and no sensitive or personal data sent during login.
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Interested in how low level RSA/Elliptic curves/Bitcoin addresses work? I made a pure Python repo you might like

submitted by imatwork2017 to Python [link] [comments]

https://cointelegraph.com/news/this-researcher-says-bitcoins-elliptic-curve-could-have-a-secret-backdoor

Does the author (MICHAEL KAPILKOV) not understand the details of his own article, is it just another poorly written article, is it clickbait, all of the above or what am I missing???
secp256k1 is used for private keys, not secp256r1.
The article says at one part, "One of the world’s top cryptographers believes that Satoshi Nakamoto chose Bitcoin’s (BTC) elliptic curve either for its efficiency or because it may offer a secret backdoor." Yet further on, the article quotes the same top cryptographer to say, "In contrast, the Koblitz curve parameters are mathematically determined, and there is little possibility for setting such a backdoor.”"
Finally, Cointelegraph quotes Wladimir van der Laan to say, "Even if Secp256r1 has a vulnerability, no one has stepped forward yet to announce their discovery. On the other hand, keeping this discovery to themselves could yield a multi-billion dollar reward." secp256r1 vulnerability leads to a multi-billion dollar reward? Where is secp256r1 in bitcoin?
There is much room for improvement in this article if I am not missing anything.
submitted by cookmanager to Bitcoin [link] [comments]

ECDSA: How does Bitcoin "chooses" the Elliptic Curve point?

Recently I've read about point addition in elliptic curves and the ECDSA and became curious about how it is applied in the bitcoin code.
I've learned that the main idea is, given a point P in the elliptic curve, the relation is:

X = xP, where x is the 256-bit integer number Private Key and X is the Public Key.

So, my questions are:

1 - How is the point P "chosen"? Is it the same everytime? Or is it randomized?
2 - How is X format defined? Do you just concatenate the x and y coordinates of P?
submitted by marcelo10fr1 to Bitcoin [link] [comments]

This Researcher Found a Secret Backdoor in Bitcoin's Elliptic Curve

This Researcher Found a Secret Backdoor in Bitcoin's Elliptic Curve submitted by CryptoTheNews to CryptoNews [link] [comments]

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor submitted by a36 to AllThingsCrypto [link] [comments]

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor submitted by Ranzware to BitNewsLive [link] [comments]

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor

One of the world’s top cryptographers believes that Satoshi Nakamoto chose Bitcoin’s (BTC) elliptic curve either for its efficiency or because it may offer a secret backdoor. Elliptic curve is worth $ billions A Bitcoin public key is created by applying elliptic curve cryptography to the private key. One can easily create a public key […]
submitted by FuzzyOneAdmin to fuzzyone [link] [comments]

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor

This Researcher Says Bitcoin’s Elliptic Curve Could Have a Secret Backdoor submitted by InTheKnow_2016 to mrcryptolive [link] [comments]

Help to get Bitcoin Elliptic Curve `secp256k1` added to Apple's newly open-sourced Swift-Crypto lib, to make iOS wallets safer and better.

Help to get Bitcoin Elliptic Curve `secp256k1` added to Apple's newly open-sourced Swift-Crypto lib, to make iOS wallets safer and better. submitted by Sajjon to Bitcoin [link] [comments]

Help getting Bitcoin/Ethereum Elliptic Curve `secp256k1` added to Apples newly open source Swift-Crypto lib, to make iOS wallets safer and better.

Help getting Bitcoin/Ethereum Elliptic Curve `secp256k1` added to Apples newly open source Swift-Crypto lib, to make iOS wallets safer and better. submitted by Sajjon to CryptoCurrency [link] [comments]

(Very) Basic Intro To Elliptic Curve Cryptography - The Keys of Bitcoin

(Very) Basic Intro To Elliptic Curve Cryptography - The Keys of Bitcoin submitted by kvothe1956 to Bitcoin [link] [comments]

Help getting Bitcoin/Ethereum Elliptic Curve `secp256k1` added to Apples newly open source Swift-Crypto lib, to make iOS wallets safer and better.

Help getting Bitcoin/Ethereum Elliptic Curve `secp256k1` added to Apples newly open source Swift-Crypto lib, to make iOS wallets safer and better. submitted by scgco to GGCrypto [link] [comments]

Vitalik: "In a sea of coins based on elliptic curve cryptography, how does Bitcoin [Core] even plan to stick out?

Vitalik: submitted by Egon_1 to btc [link] [comments]

IBM warns of “instant breaking of encryption” by Quantum Computing in 5 years. As a priority, Bitcoin should seriously plan to move off Elliptic Curve now. Bitcoin will be one of the first to be attacked.

IBM warns of “instant breaking of encryption” by Quantum Computing in 5 years. As a priority, Bitcoin should seriously plan to move off Elliptic Curve now. Bitcoin will be one of the first to be attacked. submitted by junglehypothesis to Bitcoin [link] [comments]

Anyone else interested in bitcoin? I implemented a large chunk of its technology in C. Includes base58 and base32 encoding, an implementation of the elliptic curve encryption algorithm, node intercommunication, and some other things. Take a look and let me know what you think.

Anyone else interested in bitcoin? I implemented a large chunk of its technology in C. Includes base58 and base32 encoding, an implementation of the elliptic curve encryption algorithm, node intercommunication, and some other things. Take a look and let me know what you think. submitted by always_programming3 to C_Programming [link] [comments]

New Ruby Quiz - Challenge #15 - Generate the Bitcoin (Base58) Address from the (Elliptic Curve) Public Key

New Ruby Quiz - Challenge #15 - Generate the Bitcoin (Base58) Address from the (Elliptic Curve) Public Key submitted by geraldbauer to ruby [link] [comments]

Vitalik: "In a sea of coins based on elliptic curve cryptography, how does Bitcoin [Core] even plan to stick out?

Vitalik: submitted by unitedstatian to ethtrader [link] [comments]

MimbleWimble offers privacy by default, more fungibility and better scale-ability of #bitcoin. Since it doesn't support scripts, it would likely be implemented as a sidechain. It is also tied to Elliptic Curve Cryptography and is not well prepared for quantum computing ... yet.

MimbleWimble offers privacy by default, more fungibility and better scale-ability of #bitcoin. Since it doesn't support scripts, it would likely be implemented as a sidechain. It is also tied to Elliptic Curve Cryptography and is not well prepared for quantum computing ... yet. submitted by brigittefruehauf to Bitcoin [link] [comments]

[new estimate] Quantum computers require at most 2330 qubits and 129 billion gates to crack Bitcoin's secp256k1 elliptic curve (we are at 17 qubits today).

submitted by blk0 to Bitcoin [link] [comments]

Elliptic curves: the math Bitcoin and most other cryptocurrencies use for digital signatures

Elliptic curves: the math Bitcoin and most other cryptocurrencies use for digital signatures submitted by Fossana to Bitcoin [link] [comments]

Elliptic-Curve Cryptography - The Curves That Keep Bitcoin Secure

Elliptic-Curve Cryptography - The Curves That Keep Bitcoin Secure submitted by Graytrain to CryptoCurrency [link] [comments]

Vitalik Non-giver of Ether on Twitter: "In a sea of coins based on elliptic curve cryptography, how does Bitcoin even plan to stick out?\xe2\x80\xa6 "

Vitalik Non-giver of Ether on Twitter: "In a sea of coins based on elliptic curve cryptography, how does Bitcoin even plan to stick out?\xe2\x80\xa6 " submitted by CryptoTraderBot to CryptoCluster [link] [comments]

Bitcoin 101 Elliptic Curve Cryptography Part 5 The Magic of Signing & Verifying Blockchain tutorial 11: Elliptic Curve key pair generation Bitcoin 101 - Elliptic Curve Cryptography - Part 4 - Generating the Public Key (in Python) Bitcoin 101 - Elliptic Curve Cryptography - Part 5 - The Magic of Signing & Verifying

Elliptic Curve Digital Signature Algorithm or ECDSA is a cryptographic algorithm used by Bitcoin to ensure that funds can only be spent by their rightful owners.. A few concepts related to ECDSA: private key: A secret number, known only to the person that generated it.A private key is essentially a randomly generated number. ECDSA (‘Elliptical Curve Digital Signature Algorithm’) is the cryptography behind private and public keys used in Bitcoin. It consists of combining the math behind finite fields and elliptic Elliptic Curve Cryptography¶ This module offer cryptographic primitives based on Elliptic Curves. In particular it provides key generation and validation, signing, and verifying, for the following curves: secp160r1. secp192r1 (NISTP192) secp224r1 (NISTP224) secp256r1 (NISTP256) secp256k1 (used by Bitcoin) For an awesome introduction to ECC Descrtiption [] Key and signature-size comparison to DSA []. As with elliptic-curve cryptography in general, the bit size of the public key believed to be needed for ECDSA is about twice the size of the security level, in bits. For example, at a security level of 80 bits (meaning an attacker requires a maximum of about 2 80 operations to find the private key) the size of an ECDSA public key Recently I've read about point addition in elliptic curves and the ECDSA and became curious about how it is applied in the bitcoin code. I've learned that the main idea is, given a point P in the elliptic curve, the relation is: X = xP, where x is the 256-bit integer number Private Key and X is the Public Key. So, my questions are:

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"Elliptic Curve Cryptography, the Foundation of Bitcoin" by Matt Whitlock - Bitcoin Summit

Bitcoin 101 - Elliptic Curve Cryptography - Part 4 - Generating the Public Key (in Python) - Duration: 21:22. CRI 24,686 views. 21:22. Best Methods to Build Rapport - Anthony Robbins - Duration ... http://bitcoin.org l On December 15, 2012, activist group Truth, Freedom, Prosperity hosted the East Coast Bitcoin Summit at Underground Arts in Philadelphia... Bitcoin 101 Elliptic Curve Cryptography Part 5 The Magic of Signing & Verifying Fabio Carpi. ... Elliptic Curve Cryptography, A very brief and superficial introduction - Duration: 48:42. Bitcoin 101 - Elliptic Curve Cryptography - Part 4 - Generating the Public Key (in Python) - Duration: 21:22. CRI 26,083 views. 21:22. How does a blockchain work - Simply Explained - Duration: 6 ... Bitcoin 101 - Elliptic Curve Cryptography - Part 5 - The Magic of Signing & Verifying - Duration: 19:33. CRI 11,607 views. 19:33. Lecture 16: Introduction to Elliptic Curves by Christof Paar - ...

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