Secure Message Recovery and Batch Verification using Digital Signature

This paper about the study of Secure message Recovery and batch verification using Digital Signature Security is increased in batch verification through triple DES algorithm Encryption is used for the Security in which the plaintext is transforming into the cipher text A digital signature scheme involves two phases the signature generation phase which is performed at the sender side and the signature verification phase that is performed by the receiver of that message In computer to computer communication the computer at sender s end usually transforms a plaintext into cipher text using encryption When the message is recovered at the Receiver Side than the original text is converted in to the encrypted text That encrypted text is secure for the authenticated person After recover the message if authentic person wants to get the original text then he she enter the key and take the plaintex

Cryptanalysis of Chang et al.\u27s Signature Scheme with Message Recovery

Recently, Chang \textit{et al}. \cite{Chang} proposed a new digital signature scheme with message recovery and claimed that neither one-way hash functions nor message redundancy schemes were employed in their scheme. However, in this letter, two forgery attacks are proposed to show that Chang \textit{et al.}\u27s signature scheme is not secure. To resist these attacks, the message redundancy schemes may be still used

Cryptanalysis of Shieh-Lin-Yang-Sun signature scheme

[[abstract]]Due to the special requirements of the mobile code system, Shieh et al. (see IEEE Trans. Veh. Technol., vol.49, p.1464-73, July 2000) proposed some multisignature schemes based on a new digital signature scheme with message recovery. One major characteristic of these schemes is to avoid using one-way hash functions and message redundancy schemes. However, this causes some security flaw. An attack is proposed to show that the underlying signature scheme is not secure. To overcome the attack, the message redundancy schemes may be still used.[[incitationindex]]SCI[[incitationindex]]E