# RSA cryptosystem ## Identification An asymmetric public-key cryptosystem. The written `248 bit RAS` is preserved as a likely but unproven transposition of `2048-bit RSA`. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF page 13. ## Relationships and evidentiary boundary [[Cryptography]] · [[Blockchain]] · [[Credential Security]]. The notebook occurrence records research context and page-level proximity. It does not by itself establish ownership, deployment, compromise, coordination, or present-day status.