Researchers Find New Method to Forge 1024-bit RSA Signatures Faster

Security researchers have disclosed a new technique capable of forging 1024-bit RSA signatures in approximately Special Number Field Sieve (SNFS) time. The method represents a significant cryptographic development, as it potentially lowers the computational cost of breaking RSA-1024 encryption. RSA-1024 is still in use across various legacy systems and older digital infrastructure worldwide. The findings, published in a research paper, highlight ongoing vulnerabilities in outdated key lengths and reinforce long-standing recommendations to migrate to stronger encryption standards.