Patent ID: 8509428
Filing Date: 2013-08-13
Classification: H04L

Abstract:
1. A high-speed pipelined ARIA encryption apparatus, comprising: a round key generator configured to generate a plurality of round keys required for performing an encryption operation in each of a plurality of round units by using a master key, the master key having a predetermined number of bits; the plurality of round units, each of which is configured to receive one or more corresponding round keys and an input value and to perform a round operation, a number of the round units being determined based on a number of bits of the input value; and a plurality of pipelined registers, each of which is disposed between two consecutive round units and configured to transmit an output value of a previous round unit to a next round unit, wherein first, second, and third round units among the plurality of round units are configured to perform a key initialization process to generate key initial values, and wherein the key initial values are used to generate the round keys, wherein the first round unit among the round units comprises: