Cryptography began as a method for individuals to write secret messages, using various techniques to disguise content from unintended recipients, ensuring confidentiality.
Modern cryptography secures digital information through complex mathematical techniques, forming an intersection with fields like computer science and ensuring data remains confidential, authentic, and unaltered.
Practical applications of cryptography today include protecting personal information, ensuring email privacy, securing online account access, and safeguarding sensitive online transactions, making it vital.
Public key cryptography, or asymmetric cryptography, relies on a pair of keys—one public and one private—to enable secure communications, forming the backbone of cryptocurrencies.
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