📅 Nov 8, 2026
DeepMind says its AI agents found two weaknesses in legacy 1024-bit RSA — in a matter of weeks.
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The agents worked under top cryptographers Nadia Heninger and Emmanuel Thome, with one model writing proofs and another checking them.
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DeepMind estimates its forgery method is about 1,600 times faster than the previous best for short 32-byte digests.
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A new batch-factoring method cuts the cost of each extra 1024-bit key by about 30 times — but only for old keys still in use.
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DeepMind says 2048-bit and larger RSA is not affected. The risk sits with old hardware and long-lived certificates still running 1024-bit keys.
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