Elliptic Curve Digital Signature Algorithm - Bitcoin Wiki

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

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]

Bash script to verify that point G is on elliptic curve y^2 = x^3 + 7 (x-post from /r/Bitcoin)

submitted by ASICmachine to CryptoCurrencyClassic [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]

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]

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 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]

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]

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]

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]

[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]

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]

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]

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 4 ... Bitcoin 101 Elliptic Curve Cryptography Part 5 The Magic of Signing & Verifying Bitcoin 101 Elliptic Curve Cryptography Part 4 Generating ... Elliptic Curve Arithmetic and Bitcoin  Nathan Dalaklis Math Behind Bitcoin and Elliptic Curve Cryptography ...

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 ... Elliptic Curve Digital Signature Algorithm or ECDSA is a cryptographic algorithm used by Bitcoin to ensure the effective and secure control of ownership of funds.. A few concepts related to ECDSA: private key: A secret number, known only to the person that generated it.A private key can be a randomly generated number but in 2019 most wallets use deterministic key schemes derived from BIP 0032. Elliptic Curve Digital Signature Algorithm (ECDSA) ist ein kryptographischer Algorithmus, der von Bitcoin verwendet wird, um sicherzustellen, dass das Geld nur von seinen rechtmäßigen Inhabern ausgegeben werden kann. SEC or SECG is base on Elliptic Curve Digital Signature Algorithm(ECDSA). Before dive in, we can get a glimpse of what the algorithm looks like in Brown et al’s publication(ec1.png, ec2.png). More info: Elliptic Curve Cryptography: page 6-7. I. Intuition About Elliptic Curve: Basics 1. Double a point(Add a point to itself): 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.

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Bitcoin 101 - Elliptic Curve Cryptography - Part 4 ...

Bitcoin 101 Elliptic Curve Cryptography Part 5 The Magic of Signing & Verifying Fabio Carpi. Loading... Unsubscribe from Fabio Carpi? Cancel Unsubscribe. Working... Subscribe Subscribed ... Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com Elliptic Curve Cryptography (ECC) is a type of public key crypt... Elliptic Curve Digital Signature Algorithm ECDSA Part 10 Cryptography Crashcourse - Duration: 35:32. Dr. Julian Hosp - Bitcoin, Aktien, Gold und Co. 5,803 views This is part 11 of the Blockchain tutorial explaining how the generate a public private key using Elliptic Curve. In this video series different topics will ... Bitcoin is a cryptocurrency that uses elliptic curves in the ECDSA. Since cryptosystems often require some form of arithmetic to encode and decode informatio...

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