A brief history of cryptography: Sending secret messages throughout time
IBM Big Data Hub
JANUARY 5, 2024
650 BC: Ancient Spartans used an early transposition cipher to scramble the order of the letters in their military communications. Modern cryptography 1913: The outbreak of World War I at the beginning of the 20th century saw a steep increase in both cryptology for military communications, as well as cryptanalysis for codebreaking.
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