Unverified50% confidenceFactExact time
RSA-768 (768 bits) has been successfully factored, marking that keys of this magnitude are no longer secure.
1
Sources
50%
Confidence
Long-term
Relevance
9/20/2026
First Seen
Sources
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Related Claims
UnverifiedFactoring an RSA key means recovering the two large prime factors p and q from the public RSA modulus N, thereby reconstructing the private key.73% similarUnverifiedSSH密钥认证基于RSA（依赖大整数分解难题）或Ed25519（基于椭圆曲线离散对数难题）算法，私钥永远不离开本地设备68% similarUnverifiedThe ROCA vulnerability disclosed in 2017 (CVE-2017-15361) stemmed from Infineon's RSA key generation implementation using a non-standard prime generation method, allowing attackers to factor 1024-bit RSA keys within hours and affecting hundreds of millions of smart cards and TPM chips worldwide.66% similarUnverifiedDevelopers should no longer use RSA keys shorter than 1024 bits; mainstream recommendations call for at least 2048 bits, with 3072 bits or 4096 bits for high-security scenarios.63% similarUnverifiedA security researcher successfully factored the RSA key used by a certificate authority (CA) from the 1990s.62% similar
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