Quantum Computers Are Not a Threat to 128-bit Symmetric Keys

A cryptography engineer has debunked concerns that quantum computers will render 128-bit symmetric keys like AES-128 and SHA-256 obsolete, explaining that Grover's algorithm provides only a quadratic speed-up, not the exponential improvement feared by many. This matters to developers and tech professionals as it clarifies that current encryption methods remain secure against quantum threats for now, though asymmetric cryptography systems are still vulnerable.

Read the full article at Hackaday

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