I'm currently thinking about a solution involving commutative encryption/decryption here is how it would work: the client chooses a pseudorandom 32-bit number, which is never sent to the server.
Non-commutative cryptography is the area of cryptology where the cryptographic primitives, methods and systems are based on algebraic structures like semigroups, groups and rings which are non-commutative protocols for encryption and decryption. Commutative encryption with rsa scheme up vote 1 down vote favorite i wanted to know how i could manage to do what i'm going to tell you next, with the rsa encryption/decryption scheme.
To make digital cash possible, we must use an encryption technique whose encryption and decryption operations are commutative suppose alice encrypts m and then bob encrypts the result alice produced.
Key generation, commutative encryption and decryption process at each of the three transceiver terminals are detailed 31 key generation in order to generate the pseudo random number, the linear feedback shift register (lfsr) has been used and more precisely the fibonacci lfsr has been taken into. I have used the encrypt and decrypt functions from this answer to implement message passing using three-pass protocol with the blowfish cipher and i tried using commutative ecryption/decryption. Encryption and decryption encryption is the process of transforming information so it is unintelligible to anyone but the intended recipient decryption is the process of transforming encrypted information so that it is intelligible again.
I wanted to know how i could manage to do what i'm going to tell you next, with the rsa encryption/decryption scheme so alice and bob each have a public key $(n, e)$ and a private key $(p, q, d)$. Commutative encryption and decryption print reference this published: 23rd march, 2015 ronald rivest and leonard adleman in 1979 in [sra] it's this scheme, which relies on commutative encryption the authors first proved, in an information theoretic sense, that the problem is unsolvable and then went on to offer a solution their.
Is there two key symetric commutative encryption function ask question up vote 3 down vote favorite 2 it's not a commutative encryption, but there are well-proven algorithms for secret sharing as both keys need to be provided together to perform the encrypt/decrypt actions in other words you can't call encrypt with one person's key. Request pdf on researchgate | commutative encryption and watermarking in video compression | a scheme is proposed to implement commutative video encryption and watermarking during advanced video.