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Cryptography trick could make AI algorithms more efficient

Encryption would normally be expected to slow down computation, but applying the tools of cryptography to "trick" an algorithm can actually make it work faster

By Alex Wilkins

4 March 2025

Concepts from cryptography can be applied to speeding up algorithms

Imago/Alamy

Adding a dash of encryption to key algorithms used in artificial intelligence models could – surprisingly – make them more efficient, thanks to a trick of mathematics.

Cryptography normally involves scrambling messages to make them appear random to malicious onlookers while preserving their information by hiding a pattern in the randomness. This randomness can then be unlocked with the correct key.

Now, at Tel Aviv University in Israel and at the Massachusetts Institute of…

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