Signcryption
computer science crazy Super Moderator Posts: 3,048 Joined: Dec 2008 
03092009, 05:33 PM
Signcryption Signcryption is a new paradigm in public key cryptography that simultaneously fulfils both the functions of digital signature and public key encryption in a logically single step, and with a cost significantly lower than that required by the traditional signature and encryption approach. The main disadvantage of this approach is that, digitally signing a message and then encrypting it, consumes more machine cycles and bloats the message by introducing extended bits to it. Hence, decrypting and verifying the message at the receiver?s end, a lot of computational power is used up. Thus you can say that the cost of delivering a message using signingthenencryption is in effect the sum of the costs of both digital signatures and public key encryption. Is it possible to send a message of arbitrary length with cost less than that required by signaturethenencryption? Signcryption is a new paradigm in public key cryptography that simultaneously fulfils both the functions of digital signature and public key encryption in a logically single step, and with a cost significantly lower than that required by the traditional signature followed by encryption.This topic has similar mathematical content to the lecture on RSA.It requires a good understanding of the various encryption algorithms like RSA,DES algorithms Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion



