Minimal Logarithmic Signatures for Sporadic Groups
This work provides a theoretical foundation for enhancing cryptographic systems by confirming MLS existence for specific sporadic groups, though it is incremental as it extends prior proofs to new groups.
The paper proves the existence of minimal logarithmic signatures (MLS) for some sporadic groups, addressing the MLS conjecture that every finite simple group has an MLS, which is crucial for cryptographic key constructions.
As a special type of factorization of finite groups, logarithmic signature (LS) is used as the main component of cryptographic keys for secret key cryptosystems such as PGM and public key cryptosystems like MST1, MST2 and MST3. An LS with the shortest length is called a minimal logarithmic signature (MLS) and is even desirable for cryptographic constructions. The MLS conjecture states that every finite simple group has an MLS. Until now, the MLS conjecture has been proved true for some families of simple groups. In this paper, we will prove the existence of minimal logarithmic signatures for some sporadic groups.