Cryptography
Cryptography is the science of securing communication and information through encoding techniques, ensuring that only authorized parties can access or understand it. It relies on mathematical principles, particularly from number theory and discrete mathematics, to create algorithms that protect data. By using complex keys—a series of numbers or symbols—cryptography transforms readable information into a scrambled format, which can only be deciphered by someone with the correct key. This is essential in modern technology, enabling secure online transactions, private messages, and safeguarding sensitive data from unauthorized access.
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Cryptography is the practice of securing information by transforming it into a format that is unreadable to unauthorized users. It uses algorithms to encrypt (scramble) data, so only those with the correct key can decrypt (unscramble) it and access the original information. This protects sensitive data, such as passwords and personal communications, from eavesdroppers. Cryptography is essential in online transactions, secure messaging, and various internet protocols, ensuring confidentiality, integrity, and authenticity of information exchanged over networks.