How does SHA-256 contribute to the security of blockchain technology?

3 answers

• Muhammad Subhan RamdhaniOct 21, 2020 · 5 years ago
  SHA-256 plays a crucial role in ensuring the security of blockchain technology. It is a cryptographic hash function that converts input data into a fixed-size string of characters. This hash function is used to create a unique digital signature for each block in the blockchain. By using SHA-256, any change made to the data within a block will result in a completely different hash value, making it practically impossible for anyone to tamper with the data without being detected. This ensures the integrity and immutability of the blockchain, making it highly secure against fraudulent activities.
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• p naresh kumarApr 22, 2021 · 4 years ago
  The SHA-256 algorithm is like the guardian angel of blockchain security. It takes the data in a block and transforms it into a unique fingerprint that cannot be reverse-engineered. This fingerprint, or hash, is then used to link blocks together, creating an unbreakable chain. Even the slightest change in the data will produce a completely different hash value, alerting the network to any tampering attempts. So, thanks to SHA-256, blockchain technology can maintain its integrity and keep hackers at bay.
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• Haykal Fikri Hardi-063Mar 11, 2025 · 5 months ago
  When it comes to blockchain security, SHA-256 is the real MVP. It ensures that the data stored in each block is safe and secure. How? Well, SHA-256 takes the data and runs it through a complex mathematical algorithm, producing a unique hash value. This hash value acts as a digital fingerprint for the block, making it virtually impossible for anyone to alter the data without being caught. So, whether you're sending or receiving cryptocurrency, you can rest assured that SHA-256 has got your back.
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