Abstract:
Multi signature schemes provide data
authenticity integrity, and non repudiation. The
proposed signing and verifying schemes are
extensions of standardized algorithms ECDSA
(Elliptic Curve Digital Signature Algorithm).
These schemes are faster than repeated E CDSA
( RECDSA). ECDSA schemes can be dire ctly used
in many applications, such as E Business for a
joint signature of a contract between two or more
organizations, or E Government. The final multi
signature of a message can be verified
individually for each signer or collectively for a
subgroup or entire group as well.
