How does replay protection work in the bitcoin network?

Can you explain how replay protection works in the bitcoin network? What mechanisms are in place to prevent replay attacks?

1 answers
- Replay protection in the bitcoin network is an important security feature that prevents the same transaction from being executed multiple times. It works by adding a unique identifier to each transaction, called a transaction ID (TXID). This TXID is generated based on the transaction's inputs, outputs, and other details. When a transaction is broadcasted on the network, it includes its TXID, which serves as a digital signature. Miners verify the TXID and ensure that it has not been used before. If a transaction with the same TXID is detected, it is considered a replay attack and rejected. This protection mechanism helps maintain the integrity and reliability of the bitcoin network.
Mar 19, 2022 · 3 years ago
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