Ethereum Transaction Hash calculation
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Calculating the hash of Ethereum Trannorations can be a bit difficult, especially for the new Ethereum’s new ones. In this article, we will look at how Ethereum calculates transaction tapes and gives examples to understand the process.
Understanding Ethereum events
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In Ethereum, each block contains several events known as “messages”. Each message is a series of income (called “data”) followed by a signature (known as “Block Hash”). The block hash is calculated using a complexiavialectric, which takes into account the data and previous seals.
Transactionhash Calcorithm
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Ethereum’s TransactionHHH Calcorithm is based on the following steps:
- Hash Functions
: Ethereum uses two types of hash functions:
* KECCAK-256: 256-bit Hash function designed quickly.
* Blake2b: 256-bit hash function designed to be memory-safe and fast.
2
- Blocks Hash calculation : blocks Hash calculated by combining the previous block hash, message title (4 byte signature) and normalized input data.
Example: Counting the Hash of one event
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Suppose we have an event with the following income:
transaction_id:0x1234567890ABCDEF
From: 0x9876543210FEDCBA ‘
To:0x876543210FEDCBA
value:0x1234567890ABCDEF
Income information would be:
[0x1234567890ABCDEF, 0x9876543210fedcba, 0x876543210fedcba]
Next, we connect the block to Hash (using KECCAK-256) in the message title (signature) and normalized income information:
Block_hash = keccak-256 (0x1234567890ABCDEF + 0x9876543210fedcba + 0x876543210fedcba) `
Message_header = 0x67454BBF
Normalized_input_data = [0x1234567890ABCDEF, 0x9876543210fedcba, 0x876543210fedcba] `
Then we combine a chain of chain block with Hash’s normalized feed information in the Hash format:
Transaction_hash = KECCAK-256 (Block_hash + Message_header + normalized_input_data)
Using a tool or library
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To calculate the event, you need a tool or a library that supports Ethereum’s Hash functions. Some popular options are:
Ethhash: Python Library, which calculates Ethereum Tashes.
Blockchain(Node.js Library): Provides a convenient application subscription to work with Ethereum information structures.
In summary, Ethereum calculates the transaction tapes by combining the Hash, message title (signature) and normalized feed information in the previous block. The resulting hash is then calculated by two Hash functions: Keccak-256 and Blake2b. By following these steps and using a tool or library to help, you should be able to calculate any Ethereum event in Hash.
Note that this is just an introduction to the process. More advanced topics, such as smart contracts and Blockchain programming, contact official resources and Ethereum developers.