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Recovering the hash from the ethhereum transaction without a private key

Transaction hash of an extracted transaction without access to the private key. One approach is to use the randomized supply value (RSV) values ​​associated with the transaction.

RSV values ​​and then discuss alternative methods.

Understanding the ethhereum transaction hash

Ethereum Transaction’s hash is a single 64 -character rope that serves as a digital fingerprint. The transaction hash without the private key, you need to know at least one of the following:

• Transaction ID

  :

• Transaction hash (without private key) : To recover it, we will use RSV values.

Recovering the transaction hash with RSV values ​​

Blockchain Ethereum uses a combination of RSV values ​​and a hash to represent the content of each block. A standard block has:

* R (random supply value)

: A random value between 0 and 1, used for the next offer.

* S (offer value) : The current supply value.

* V (value) : a decimal value representing the value of the transaction.

To recover the transaction hash without using the private key, we will use RSV values. Here is a step by step process:

• Get the content of the block:

.

• Extract the transaction ID values ​​and RSV:

.

* Get the values ​​of RSV (R, S, V) for the specified transaction.

• Calculate the hash of the private key transaction:

.

Here is some sample code in JavaScript using web3.js:

`JavaScript

CONST Web3 = Requires (‘Web3’);

Constte Ethers = Requires (‘Éters’);

// Configure your Ethereum Provider (eg infra, alchemy)

CONST PROVIDER = new web3.providers.httpprovider (‘

GettransactationSh asynchronous function (transaionid) {

CONST BLOCK = WAIT PROVIDER.GETBLOCK (TRANSACTIONID);

Constt TransationAdata = block.hash;

// Get RSV values ​​for the specified transaction

CONST RSVValues ​​= block.Transations [0] .rsv;

CONST S = block.Transations [0] .S;

CONST V = block.Transations [0] .V;

// Calculate the hash of the private key transaction

Consta Txhash = Ethers.Ultils.SOLITITYSAFEDRESS (

Web3.utils.tohex (rsvvalues) +

Web3.utils.tohex (s) +

Web3.utils.tohex (v)

);

Return Txhash;

}

// Get the transaction hash for a specific transaction ID

Gettransactationhosh (‘transaionid’).

console.log (txhash);

});

`

Alternative Methods

Although the use of RSV values ​​is an approach, there are other methods to retain the transaction hash without a private key:

1.

2.

Levels of security, accuracy or availability in comparison to use the private key.

How to recover the hashes of the Ethereum transaction without a private key, you can now advance your development projects working with Ethereum.

Ethereum Difference Bitcoin