GoKawiilResearchers cut computational cost of breaking textbook RSA encryption
Researchers from UC San Diego and Inria Nancy have published a paper describing a new attack that significantly reduces the number of operations needed to factor RSA keys used in the 'textbook' or 'raw' RSA variant. For 1024-bit keys, the required calculations drop from roughly 2^80 to 2^65, with similar reductions across 2048-, 3072-, and 4096-bit key lengths. The findings have not yet completed peer review.