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Cryptography is the science of securing digital information through complex mathematical techniques. It's also the reason why cryptocurrencies exist at all.
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Cryptography is the science of securing digital information and communications through complex mathematical techniques. It ensures that data (often digital data) remains confidential, authentic, and unaltered. Public key cryptography plays a vital role in ensuring the security and integrity of transactions for cryptocurrencies. In cryptocurrencies, private keys are used to sign transactions, and public keys to verify the signatures.