Secure Multisignature Generation for Group Communication
Rutba Maqsood1, Surabhi Thukral2, Divya Upadhyay3
1Rutba Maqsood, M.Tech CSE, AmityUniversity, Noida, India.
2Surabhi Thukral, M.Tech CSE,Amity University, Noida, India.
3Divya Upadhyay, Assistant Professor CSE, Amity University, Noida, India.
Manuscript received on February 11, 2013. | Revised Manuscript Received on February 12, 2013. | Manuscript published on February 25, 2013. | PP: 01-02 | Volume-1 Issue-4, February 2013. | Retrieval Number: C0134011313/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Multi-signature is a signature scheme in which signers jointly generate a signature on a message. Our project applies Multisignature scheme for sending messages in a group. Multisignature is more secure and eliminates the latest attacks. Individual signers are identified by the information contained in Multisignature. Our project provides an overview and comparison between the RSA cryptosystem and Elgamal cryptosystem applied on groups for sending and receiving messages. The basic theories of the RSA cryptosystem[4] and Elgamal cryptography are explored. The RSA cryptosystem and Elgamal cryptography theories are quite similar. The idea of the RSA cryptosystem is to secure communication via networks by using public keys to encrypt and decrypt messages, where a private key is kept secret. This shows that the reliability and strong security of the RSA cryptosystem depends on the degree of difficulty of integer factorization. Therefore, in this paper the methods for integer factorization are discussed. In addition this paper also represents how the security of Elgamal cryptography is based on the difficulty of discrete logarithm problem where it is straight forward to raise numbers to large powers but it is much harder to do the inverse computation of the discrete logarithm. Through this paper we tried to provides an overview and comparison between the RSA cryptosystem and Elgamal cryptosystem applied on groups for sending and receiving messages
Keywords: Digital Signature, Elgamal Cryptosystem, Multi Signature, RSA