The cipher machines that were used before, during the Second World War, were in many ways the predecessors to today's computer devices. Where Cryptography Comes FromĬomputer cryptography started with the invention of the first computer, nicknamed 'Colossus'. In the digital age, cryptography has evolved to address the encryption and decryption of private communications through the internet and computer systems, a branch of cyber and network security, in a manner far more complex than anything the world of cryptography had seen before the arrival of computers. Cryptography historically has dealt with the construction and analysis of protocols that would prevent any third parties from reading a private communication between two parties.
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