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This paper presents a quasigroup encryptor that has very good scrambling properties. We show that the output of the encryptor maximizes the output entropy and the encrypted output for constant and random inputs is very similar. The system architecture of the quasigroup encryptor and the autocorrelation properties of the output sequences are provided.
—This paper presents a practical implementation of a quasigroup based multilevel, indexed scrambling transformation for use in signal authentication, encryption, and broadcasting applications in secret-key cryptography. Results of experiments with text and speech scrambling are presented. It is shown that the quasigroup transformation is very effective in… (More)
As data is exchanged quickly in electronic way, information security plays a vital role in transmission and storage. Digital images are widely used in industrial purpose, so it is necessary to protect image from unauthorized access. Quasi group encryption is used to encrypt the grayscale image to provide security during transmission. Computer images are… (More)