Ethereum: Understanding the transaction ID and your own generation
As a developer building blockchain applications on the Ethereum network, you are probably known for the importance of a unique identifier for each transaction. In this article, we will go into how to generate the transaction ID (TX ID) Ethereum and explore its complexity.
What is the transaction ID?
The Ethereum transaction ID serves as a unique identifier for each transaction sent throughout the network. It is used by the Ethereum Virtual Machine (EVM) to identify and test the transaction blockchain. TX ID is usually generated when the transaction is created using the “Transaction” Solidity or Ethers.
How to generate a transaction ID
To generate a transaction ID, you need to create a serialized version of your transaction data that includes:
1
Data of the transaction : This may include fields such as gas price, gas restriction, nonce and value.
- Encryption keys
: You will have to encrypt these fields using a key pair (private key and public key).
Here is an example of Solidity:
`SOLIDITY
Pragma Solidity ^0.8.0;
Import “
Contract MyContract {
Function Deal () Social Payable Yield (UINT256) {
// Create a new transaction data object
Transactundata TxData = Transactate (
Bytes4 (both.Encodepacked (“Value”, “Gasprice”, “Gaslimit”))
);
// encrypt fields using private key
bytes memory encryptxdata = encrypted (txdata);
// Calculate TX ID as a double Sha-256 mixture of the serialized deal
uint256 TXID = KECCAK256 (Encrypt St.Data, 0x6e8738A2A35FCD5B1C9F24D8F3E4DD7BFBE94B94B1CaAFEC9CEFFBF2C4BD51A14);
return TXID;
}
}
Struct Transactunda {
bytes value; // The amount to be sent
Uint256 Gasprice; // Vei (Gas Price Unit)
uint256 Gaslimit; // The maximum number of gas units that can be executed in one block
}
Function Encryption (Transactentata TxData) Inner Pure Return (byte Memory) {
bytes memory shifredtxdata = both.Encodepacked (
txdata.value,
txdata.gasprice,
txdata.gaslimit
);
Return to KECCAK256 (SchifredtxData, 0x6e8738A2A35FCD5B1C9F24D8F3E4DD7BFBE94B1CaAFEC9CEFFBF2C4BD51A14);
}
`
In this example, we create a “Transactentata” structure to save the transaction data, and the “encryption function that captures this structure and returns its encrypted version.
TX ID
The TX ID is calculated using the second argument using encrypted transaction data using encrypted transaction data. The first 128 bits obtained are encrypted transaction data Sha-256 hash, while the last 64 bits are the time stamp and Nonde (i.e., the current block number).
You can use this formula to generate TX ID for your transactions:
TXID = KECCAK256 (Encryptstxdata, Time Stamp + Nece)
Here is an example:
`SOLIDITY
Pragma Solidity ^0.8.0;
Contract MyContract {
Function Deal () Social Payable Yield (UINT256) {
// Create a new transaction data object
Transactundata TxData = Transactate (
Both.