
TED Talks Daily Cryptographers, quantum computers and the war for information | Craig Costello
Nov 13, 2019
Craig Costello, a renowned cryptographer, dives into the revolutionary world of quantum computers and their potential to disrupt current encryption methods. He highlights the historical tug-of-war between cryptographers and code breakers, showing how quantum technology can change the landscape of information security. Costello emphasizes the urgent necessity for innovative encryption strategies to safeguard data against the looming quantum threat. With a mix of opportunity and risk, he reveals how the future of secure communication hangs in the balance.
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Mary Queen of Scots' Encryption
- Queen Mary of Scots used encryption for her letters, believing they were secure.
- Queen Elizabeth's codebreakers deciphered them, revealing Mary's assassination plot, leading to her execution.
Enigma Code
- The Nazis used the Enigma Code, believing it unbreakable.
- Alan Turing, creator of the modern computer, built a machine to break Enigma, deciphering German messages and aiding in Hitler's defeat.
Public Key Cryptography
- Public key cryptography revolutionized encryption by eliminating the need for prior key exchange.
- This allows secure communication with anyone, enabling fast and seamless data transfer.

