ENCRYPTION DEVICE
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United States of America Patent
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app pub date -
May 5, 2017
filing date -
Aug 22, 2016
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Abstract
An encryption device includes a zeroth encryption core suitable for receiving and encrypting data, and outputting an encryption result; first to (N-1)-th encryption cores, each suitable for receiving and encrypting an encryption result of a previous encryption core and transferring the encrypted encryption of the previous encryption core result to a subsequent encryption core; an N-th encryption core suitable for receiving and encrypting an encryption result of the (N-1)-th encryption core, and outputting the encrypted encryption result of the (N-1)-th encryption core as encrypted data; and a key expansion logic circuit suitable for generating first to N-th encryption keys to be used in the first to Nth encryption cores, by using an initial encryption key used in the zeroth encryption core.
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