An Innovative Digital Envelope Slant for an Unsecured Channel
Keywords:
Encryption, Decryption, Authenticity, Confidentiality, Integrity, Message Digest-5, Blowfish, Non-repudiation, Ron Rivets Shamir AdelmanAbstract
The digital signature and digital envelope are two techniques extensively used in data communication. Both techniques have some deficiencies like digital envelope provides only confidentiality and best of both the world. Digital Signature provides confidentiality as well as integrity and non-repudiation. Symmetric key cryptography in combination with asymmetric key cryptography is used in digital envelope does not provide all security features such as integrity, authentication, and non-repudiation. Hence to fulfil all security features MD5 has to be used with a symmetric key and asymmetric key cryptography. In our work, we suggest an implementation of a novel digital envelope technique. It comprises best of both the world and digital signature to fulfil all security features integrity, confidentiality, authentication, and non-repudiation. In our project work we are using the hash generation algorithm MD5, the symmetric key algorithm (Blowfish) and the asymmetric key algorithm (Ron Rivest Shamir Adelman (RSA)). RSA is very popular and proven asymmetric key cryptography. It provides confidentiality as well as integrity and non-repudiation. So we are providing an integrated solution which will meet the above mentioned requirements. It can overcome the shortcomings of the existing digital envelope technique and it provides strength to the security of e-commerce channel.
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