Questions tagged [private-key]
in assymetric cryptography, the private key is used to unlock, sign or decrypt
454
questions
0
votes
2
answers
21
views
Convert a private key to a .pem file
How can I convert a private key to a .pem file to upload it to AWS KMS?
- 685
0
votes
1
answer
13
views
How to import an existing private key into AWS KMS?
Is there a way to import into AWS Key Management Service an already existing private key so I can sign transactions with that wallet? I have found some tutorials online (like this one: https://www....
- 685
0
votes
0
answers
24
views
What is the private keys and wallet [duplicate]
{
"type": "private-key",
"version": 3,
"crypto": {
"ciphertext": "513b4f7565bc1d655bc1789f486f66c812e5af97a0b297167f083567c913f488"...
- 11
0
votes
0
answers
133
views
How to know in a deterministic way if a specifc address is vulnerable to the profanity hack?
Context :
My private key just got stolen. The thieve sent to me a message starting by ”nice payment for your work„ on https://chat.blockscan.com along an e‑mail from [email protected] revealing a ...
- 961
0
votes
1
answer
55
views
A special private key that can be used to make a TX to a certain wallet ONLY
I want to be able to archive this:
a private key or its substitute (P) of a user wallet is stored on a server
there're 100s of user wallets there, hence 100s of (P) too
server isn't a safe ...
0
votes
2
answers
24
views
What ways are there to prevent frontrunning on published private keys?
Since once a private key is public knowledge, anyone can sign with them, and there are plenty of bots prepared to drain funds added to exposed accounts. My question is, what ways are there to ...
- 113
0
votes
0
answers
39
views
Generating Ethereum Address from Mnemonic Seed Phrase in Java
I hope you're doing well. I have a question related to Ethereum address generation in Java. I'm currently working on a project and I need to generate an Ethereum address using a mnemonic seed phrase. ...
0
votes
1
answer
25
views
Is it possible to trigger send transaction from NodeJs server for safe wallet without owner private key and owner get the notification for signing
I want to create a NodeJs server and use the safe sdk wallet to create the safe Instance and initiate the transaction from it, and then send the notification to all owners so that they can sign the ...
0
votes
1
answer
50
views
How to generate a valid Private Key using CLI?
I am trying to create a private key which is valid and can be used for production work.
What tool should I use to create a Valid Private key on my system using Terminal/CLI?
- 63
2
votes
1
answer
119
views
Deriving an address from a private key programmatically
I'm stuck between a rock and a hard place right now.
I'm developing an app with react native, and users need to be able to import their wallets via their private keys (and hopefully mnemonic phrases)
...
- 21
0
votes
0
answers
25
views
What happens to ECDSA public key if a constant is added to private key?
Consider I have a random number on curve Secp256k1 as the private key. I know if I calculate G multiplied by the private key in EC domain, I get the public key.
I am wondering what happens to public ...
- 140
1
vote
0
answers
32
views
What kind of malicious activity could an RPC gateway inflict on the user?
Let's say, a third-party RPC gateway for an Ethereum-like networks decided to turn itself into a malicious one. Apart from the likes of selling users' data, what kind of malicious activity could it ...
- 91
0
votes
1
answer
56
views
Is private key sent out at any ocassion in a request to any RPC?
Do I understand correnctly that no RPC whether it be the standard Ethereum full node, or an RPC/REST API gateway, require a private key to be sent to it in the pure text? A private key is only used to ...
- 91
0
votes
1
answer
40
views
Custom digital signature of a wallet
I would like to get a custom signature from a wallet. What I mean is, according to EIP-712 the signature algorithm used in Ethereum is kekkac256; I would like instead to use a custom signature ...
3
votes
0
answers
28
views
Is there a library to sign transactions using a cold wallet?
I have a Ledger Nano S I want to use for signing transactions on a server. Is it possible to use a library to do this every time without the need of someone manipulating the hardware wallet but ...
- 685
0
votes
1
answer
31
views
how blockchain verify private keys, I am sure nodes does not store private key, so how private key is validated?
it's the doubts lie in the very core concept, but I wanna know how the nodes know that the private+public key is right.
- 631
1
vote
1
answer
70
views
Use private key to encode your own public address
Let's say I use a wallet's private key to encode/digitally sign it's own public address, meaning that upon using its public address to decrypt that encoded/signed data, the result would be the public ...
- 143
0
votes
0
answers
85
views
Can't derive an account from a mnemonic phrase like in metamask?
I wrote a script that derivate keys on a given derivate path. I tested it here, and the results are for the path m/44'/60'/0'/0/0 matched. My goal is to generate a mnemonic phrase, and then derive an ...
- 115
1
vote
0
answers
86
views
Can I use a BLS12-381 private key to sign Ethereum transactions?
I'm new to cryptography and I've recently been studying BLS signatures. Please forgive me if I make any mistakes while writing.
I've tried generating a BLS key pair and using the private key to derive ...
- 11
0
votes
0
answers
62
views
How to get extended public key from extended private key in bip39?
I have root key, and I want derivate child key from it. As I understood, I need parent key`s fingerprint, which is first 32 bits of ripemd160, of sha256 of public key. How can I get public key from ...
- 115
1
vote
1
answer
26
views
sending a method on nodejs with admin account
I want to send a method from the owner's account to which I have the private key.
I tried adding the private key int he red rectangle but when I run it I get this error:
- 11
3
votes
1
answer
470
views
How do you calculate a privatekey/public key from an xprv/pbub?
I am trying to understand how HD wallets work in Ethereum. Currently I have managed to generate a child extended private and public key (xpub and xpriv) from my BIP32 Root Key. However, I can't find ...
0
votes
0
answers
33
views
Storing credentials inside NFTs
I was wondering whether it was possible to store credentials or sensible informations inside a NFT in a secure way.
The only way it came to my mind was encrypting the data using the private key of the ...
3
votes
1
answer
222
views
Now that eth_decrypt and eth_getEncryptionPublicKey are deprecated, is there a good way to encrypt and decrypt data via a user's private key?
The project I'm trying to make has this flow:
User inputs some data
It gets encrypted using their private key
It gets stored to a place which is accessible to anyone but only the person in possession ...
- 31
1
vote
0
answers
34
views
how to get 'z' in ECDSA?
There are 2 nice articles about ECDSA of getting private key by the same 'r'. I dont know how to get the 'z'. Can u describe in detail and give an example?first article
second article
- 61
0
votes
1
answer
65
views
creating multiple eth keys from one private key [duplicate]
I want to create multiple Eth public Keys from one private Key like exchange hot wallet
- 1
0
votes
1
answer
260
views
What is the format of the private key required to deploy using deploy-zksync?
I am trying to deploy a very basic smart contract using zkSync. This is the code, from they docs:
deploy.ts
import { Wallet, utils } from "zksync-web3";
import * as ethers from "ethers&...
- 685
1
vote
0
answers
313
views
How to quickly get private keys from mnemonic phrases
I need to get private keys (ethereum/bitcoin and other currencies) from mnemonic phrases as fast as possible. At the moment I am using BitcoinJ library:
Set<BigInteger> privateKeys = new HashSet&...
- 41
0
votes
0
answers
52
views
retrieve private key from v4 keystore with password
I've got a keystore file from when I staked 2 years ago. I have the password and the keystore tests as valid, but I'm trying to get the privatekey/mnemonic back out of it. All the material I see for ...
- 101
0
votes
1
answer
204
views
What is the best way to store the private key to sign transactions on web3js
So I have a web3js script(bot), something along these lines:
let walletAddress = ""
let pvtKey = ""
signed = await web3.eth.accounts.signTransaction(txObject, pvtKey);
What is ...
0
votes
2
answers
95
views
How can someone verify that the deployer of a smart contract does not hold a matching private key?
Smart contracts don't have private keys. But there exists a private key matching their public key/address in the sense that their public key is derived from a key pair generation mechanism.
How can I ...
- 11
0
votes
0
answers
127
views
Get Private key from UUID of old eth Wallet
I have a UUID generated by the eth-cli (2016).
Is it possible to generate the private key from this UUID, or does the UUID get generated from the private key?
If it works from UUID to private key, how ...
- 101
0
votes
1
answer
34
views
Why would Ethereum forks chose different Bip39 Derivation paths derivation path than ethereum?
Just wondering why Ethereum forks like Ethereum Classic or others would chose a different derivation path than Ethereum? Having the same derivation path would guaranty greater support as it would be ...
- 317
0
votes
1
answer
46
views
Can ECDSA keys hashing to a contract address be used to sign a transaction?
Theoretical question: say I randomly managed to get a private key that provides a pubic key that hashes to and address that happens to be already in use for a contract instead of being an EOA.
Does ...
0
votes
1
answer
513
views
Hardhat Tasks - How to import an account with a private key as signer
I am writing a Hardhat task. Hardhat ethers provides ethers.getSigners()which returns me the addresses derived from the mnemonics saved in process.env.
However, I want to use an account address, of ...
- 435
0
votes
1
answer
37
views
Is there a hardware wallet solution which allows importing existing private keys?
I would like to avoid storing private keys for signing messages and transactions on my computer. The logical solution would be a hardware wallet like Trezor or Ledger.
The problem is, I was unable to ...
- 103
3
votes
2
answers
609
views
Can one wallet address have multiple private keys?
On the forum there were some threads about people creating multiple public keys from one private key. I am wondering if the reverse is possible as well. Can 2 private keys create 1 public key. I am ...
- 31
0
votes
0
answers
48
views
What is the best way to store master private keys and mnemonic in an HD Wallet implementation?
I have to implement HD Wallet and issue a deposit address to the user.
Is there a best practice for storing master private keys and mnemonic?
I would appreciate it if you could also tell me how to ...
- 61
0
votes
1
answer
93
views
Why i am getting different public key values from same private key?
I have been exploring ethereum-cryptography library to build HD wallet features for my demo application. I have used HDkey library to generate master private key from master seed.
The code is below ...
- 3
-1
votes
1
answer
854
views
Can you use multiple seed phrases on a Ledger Nano hardware wallet?
When you're shipped a Leger Nano hardware wallet, you generate that device's native seed phrase (private key) upon opening the device.
Can you additionally recover an existing seed phrase on the ...
- 1,486
1
vote
1
answer
408
views
Why I can't import private key to metamask?
I'm new. Sorry for the question. Please, help me to understand why I can't import a similar private key to metamask:
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE8AF48A04CBFD47E8CB0366361 how I can fix this?...
- 11
1
vote
0
answers
468
views
ECDSA Nonce reuse attack
so I recently stumbled upon this video by @bertcmiller who created two transactions with the same nonce "k". That seen I researched quite a lot of pages explaining how to recover the private ...
- 21
0
votes
1
answer
23
views
Alphabets in x , y coordinates of Elliptic graph
I was reading about the ethereum address generation process. I am very confused that when Private key generated is processed under "Elliptic Curve Digital Signature Algorithm" , we get a ...
0
votes
1
answer
51
views
Receiving payments from my clients on a website, and when each user is given his own address
I want to receive crypto-payments from my clients in such a way that they'll be able to send them to an address directly and from any type wallet they may have. Namely, I don't want to have them sign ...
- 75
0
votes
0
answers
45
views
Crypto Exchange Account Model (HD Wallet?)
There are some crypto networks such as Bitcoin, Ethereum, TRON, Solana, etc.
To develop a crypto exchange, it is a good idea to have a private key for each network, and generate an address (for ...
- 1
0
votes
1
answer
245
views
How to send tokens to a wallet without exposing your Private Key (ethers.js)?
Intro: I am trying to create a web app where I can send some tokens from my personal account to another. I found out a possible way to achieve my goal using ethers.js in the following way:
// connect ...
- 175
0
votes
1
answer
212
views
How to store private key on a VPS in a secure manner?
I have a service which will interract with my smart contract which will include money transfer. For this reason, a private key of the owner or deployer of a smart contract will have to be store on a ...
- 75
1
vote
0
answers
31
views
How to correctly get PubKey from PrivateKey in Python
I'm trying to master the basics of cryptography behind ethereum etc, mean very basics. trying to calculate the Pub Key via basic Pub = Priv * Generator Poing G in python, so basically
from ecdsa....
- 11
0
votes
1
answer
248
views
How secure and trusted Web3Auth is?
So my question is about the to which degree Web3Auth is trusted? I played around with their SDK a bit, and after user logs into the DApp, the application can even retrieve user's private key and ...
- 241
1
vote
2
answers
45
views
how does one secure one's key when writing an oracle?
I'm looking to write an oracle that will interact with the blockchain in the following way.
Client submit a withdrawal request on the contract
The Oracle will pick up that request, check the balance ...
- 105