Nope, impossible. The address is mathematically derived from the public key. The public key is mathematically derived from the private key. Hence, there is a deterministic relationship tying the address to the private key. Aug 12, · “The private key must remain secret at all times because revealing it to third parties is equivalent to giving them control over the bitcoins secured by that key. The private key must also be backed up and protected from accidental loss, because if it’s lost it cannot be recovered and the funds secured by it are forever lost, too.”. Jun 29, · A private key is an integral aspect of bitcoin and altcoins, the signature will change as well. There are a number of ways that a digital wallet which contains a private key can be stored.
Can bitcoin private key be changedChanging a private key of a public Bitcoin address - Bitcoin Stack Exchange
This math relation helps in confirming that the signatures are only of that particular account holder who wants to transfer bitcoins. These digital keys are crucial in the ownership of bitcoins. A wallet stores these keys.
There are a lot of types of wallets out there and some allow the private keys to be stored and guarded by the user. I have explored each type of safety measure for you so that you can choose the most effective wallet according to your needs.
Web and Mobile Wallets. Most of the web and mobile wallet software services in the Bitcoin market store your private key on your behalf on their servers. Android Wallets :. In this kind of wallet, your keys are held by someone else, and if that gets hacked or stolen, your bitcoins are gone. That is why you need to take extra safety measures when dealing with these services.
Desktop wallets are relatively safe. In such wallets, once you install them on your desktop, you will get your Bitcoin address and private key in a downloadable and importable file. Some hardware wallets come with security grid cards similar to some debit cards in order to verify the transaction. Some even have a little digital screen to verify your transactions.
They are tamper proof and come with a limited user interface. In case your device is destroyed, as long as you have a backup code, you can retrieve your keys and bitcoins. Some of the popular hardware wallets are:. Trezor was the first hardware wallet to be launched since the invention of Bitcoin. It is a small device which can be connected via a USB cable to your personal computer.
Its fundamental purpose is to store the private keys offline and sign transactions. Ledger Nano S can be used even on a computer that is infected with malware.
It has two buttons which are needed to be pressed together to sign and confirm a transaction, making impossible for a hacker to use. Here are few videos to learn more about Ledger Nano S:. Paper wallets are simply Bitcoin private keys printed on a piece of paper. It can have the Bitcoin public address also printed on it, but not necessarily. Paper wallets are an effective way of storing Bitcoin private keys offline.
You can make your paper wallet from bitaddress. You can save the HTML page offline and remain disconnected from the internet to generate the keys. They can be printed on paper or stored as a soft copy on a USB or hard drive. Read my previous guide on how to make a Bitcoin paper wallet.
In a Bitcoin wallet, the most important thing is your private key because it will prove that the bitcoins you claim as your own are actually yours. How are you keeping your private keys safe? Let us know what you do in the comments below!! Have a question about Bitcoin Private keys?
Feel free to ask in the comment section below. Harsh Agrawal is the Crypto exchanges and bots experts for CoinSutra. He has a background in both finance and technology and holds professional qualifications in Information technology.
After discovering about decentralized finance and with his background of Information technology, he made his mission to help others learn and get started with it via CoinSutra. I heard that obtaining the private key means taking ownership of the bitcoins. How to do this practically? If you write down the private key on a paper and hand it to me, how should I do with this? Put these keys in a wallet to claim your BTC.
Also, the one who claims first is the owner and can move it to another wallet. Thank you for quick answering. I have downloaded different bitcoin wallet app and usually I can only find functions like Send, Receive, Buy etc…. Did I miss anything? One would have to study and understand elliptic curve theory and math to appreciate the difficulty of the problem someone wanting to steal your bitcoin would need to solve.
Other cryptocurrencies use elliptic curve, too, which has been around about 30 years now. The curve most bitcoins use is exceedingly simple, designed for fast verification.
I have a paper wallet, which I photocopied as a backup, the lost the original. Had trouble getting the alpha numeric key to take in blockhain. How would I know if the alpha numeric code was accurate? Some more inputs like formats will help in analyzing. Please help me.. I have all other details but how do i get back my private key.
Private keys must be kept offline, and out of your computer. Wish you can retrieve yours…. I have a money coming to me for investments. They put it in my account but I can do anything with the it. Then it disappears. They told me I need to buy a private key in order to receive the money.
The address is mathematically derived from the public key. The public key is mathematically derived from the private key. Hence, there is a deterministic relationship tying the address to the private key. Every private key has exactly one address it belongs to. Sign up to join this community. The best answers are voted up and rise to the top. Changing a private key of a public Bitcoin address Ask Question. Asked 4 years, 6 months ago. Active 4 years, 6 months ago.
Viewed 1k times. I want to prove that it can be done, or prove that it cannot be done. Albert s Albert s 1, 6 6 silver badges 20 20 bronze badges. Highly related: Is it possible generate three public key address by only one private key? Active Oldest Votes. It cannot be done. Pieter Wuille Pieter Wuille I'm under the impression that two private keys can theoretically make the same public key, but I've never seen it.
There is an isomorphism between the multiplicative group of integers modulo n to which the private keys belong and the elliptic curve group to which the public keys belong. There is provably exactly one point on the curve for every private key. However there are certainly multiple public keys with the same address, although finding them requires finding a hash collision, which is considered computationally infeasible.
PieterWuille Public keys with the same address. That must be what I'm thinking about.