40-bit encryption

About: 40-bit encryption is a research topic. Over the lifetime, 5434 publications have been published within this topic receiving 149016 citations.

An Efficient RSA Public Key Encryption Scheme

Abstract: In this paper, we propose an efficient RSA public key encryption scheme, which is improved version of original RSA scheme. The proposed RSA encryption scheme is based on linear group over the ring of integer mod a composite modulus n which is the product of two distinct prime numbers. In the proposed scheme the original message and the encrypted message are h x h square matrices with entities in zn indicated via l(h, zn) . Since the original RSA Scheme is a block cipher in which the original message and cipher message are integer in the interval [0, n -1] for some integer modulus n. Therefore, in this paper, we generalize RSA encryption scheme in order to be implemented in the general linear group on the ring of integer mod n. Furthermore, the suggested encryption scheme has no restriction in encryption and decryption order and is claimed to be efficient, scalable and dynamic.

System and method for encryption and key management in cloud storage

Abstract: A cloud storage system includes an encryption server configured to encrypt a plurality of data by using encryption keys having a hierarchy, the hierarchy of encryption keys corresponding to a relationship among the plurality of encrypted data, and a cloud storage server configured to store the plurality of encrypted data.

Chaos based adaptive double-image encryption scheme using hash function and S-boxes

Abstract: Most current symmetric cryptographic algorithms (symmetric ciphers and hash functions) are considered to be relatively secure against attacks by quantum computers. Here we propose an adaptive color double-image encryption scheme based on autonomous ODE chaotic system and SHA-512. The double-image is diffused firstly by chaotic sequences with bitwise exclusive or operation, and an algorithm is designed to transform two 512-bit hash values into two S-Boxes, to substitute for the pixels of diffused double-image respectively. In each encryption process, the initial values of chaotic system are from random signal, they are true random numbers. Simulation results demonstrate that the scheme is suitable and effective for color double-image encryption.

Apparatus and method for identity-based encryption within a conventional public-key infrastructure

Abstract: A computer readable medium storing executable code to generate an identity-based encryption key includes executable code to specify a master key, receive an identity-based string and execute a function that processes the master key and the identity-based string to produce a seed. The seed is then used to produce an identity-based encryption key interoperable with a deployed public key cryptosystem.

Status Report on the First Round of the Development of the Advanced Encryption Standard

Abstract: In 1997, the National Institute of Standards and Technology (NIST) initiated a process to select a symmetric-key encryption algorithm to be used to protect sensitive (unclassified) Federal information in furtherance of NIST’s statutory responsibilities. In 1998, NIST announced the acceptance of 15 candidate algorithms and requested the assistance of the cryptographic research community in analyzing the candidates. This analysis included an initial examination of the security and efficiency characteristics for each algorithm. NIST has reviewed the results of this research and selected five algorithms (MARS, RC6™, Rijndael, Serpent and Twofish) as finalists. The research results and rationale for the selection of the finalists are documented in this report. The five finalists will be the subject of further study before the selection of one or more of these algorithms for inclusion in the Advanced Encryption Standard.