Title :
A New Forward-Secure Digital Signature Scheme
Author_Institution :
Dept. of Commun. Eng., Xiamen Univ., Xiamen
Abstract :
In this paper, the widely used ECC digital signature scheme - ECDSA is advanced, and a new forward-secure digital signature scheme is proposed in order to reform the limitations of ECDSA. In the new scheme, although the digital signature´s private key is under the control of a one-way function and continually changed in different durations with time goes by, its public key remains the same. The attacker could not fake the older signature even if the private key is leaked out in some period of time. In this way this scheme makes sure of the security of signature of former phases. The validity of the new scheme is proved and the security is analyzed in the paper.
Keywords :
digital signatures; private key cryptography; public key cryptography; forward-secure ECC digital signature scheme; private key cryptography; public key cryptography; Business communication; Communication system security; Computer security; Digital signatures; Eigenvalues and eigenfunctions; Elliptic curve cryptography; Elliptic curves; Galois fields; Mathematics; Public key; ECC (elliptic curve cryptosystem); digital signature; forward-secure; provable security;
Conference_Titel :
Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on
Conference_Location :
Xiamen, Fujian
Print_ISBN :
1-4244-1035-5
Electronic_ISBN :
1-4244-1035-5
DOI :
10.1109/IWASID.2007.373738
