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X-day, when quantum computers will be able to decrypt RSA encryption and elliptic curve cryptography (ECC), will be around 2030, but what should be done by then?

DEF CON 33, the world's largest security event held in Las Vegas in August 2025, Konstantinos Karagiannis, a leading expert in quantum computing and cybersecurity, gave a presentation titled ' ...
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Which of 'RSA', 'DSA', 'ECDSA' and 'EdDSA' should be used for SSH public key encryption?

Public key cryptography is an encryption method that uses different keys for encryption and decryption. For example, when Bob and Alice interact, Alice creates a private key and a public key, and ...