as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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summarize the purpose of cryptography.
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the purpose of cryptography is to protect data and communications against unauthorized access and alteration. cryptographic algorithms are used to transform plain text into a secret code that can only be read by the intended recipient, usually via a cryptographic key. this makes it difficult for unauthorized parties to access and understand the data, making it a powerful tool for data security.
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