Can you explain how cryptographic signatures work?
Sure! Cryptographic signatures are used to verify the authenticity and integrity of a message or document.
How do they ensure that the message hasn't been altered?
They use a combination of hashing and encryption. A hash of the message is created and then encrypted with a private key.
What happens if someone tries to change the message?
If the message is altered, the hash will change, and the signature will no longer match, indicating tampering.
Are cryptographic signatures used in blockchain technology?
Yes, they are crucial in blockchain for verifying transactions and ensuring that they are secure and unaltered.
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