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    • 4. 发明授权
    • High-speed pipelined ARIA encryption apparatus
    • 高速流水线ARIA加密装置
    • US08509428B2
    • 2013-08-13
    • US12509347
    • 2009-07-24
    • Sang Woo LeeByung Ho ChungJeong Nyeo Kim
    • Sang Woo LeeByung Ho ChungJeong Nyeo Kim
    • H04L9/30
    • H04L9/0631H04L2209/122H04L2209/125
    • There is provided a high-speed pipelined ARIA encryption apparatus. The high-speed pipelined ARIA encryption apparatus includes a round key generator for generating a plurality of round keys required for performing an encryption operation using a master key formed to have uniform bits, a plurality of round units whose number is in proportion to the number of times of round operations corresponding to the number of bit of an input value to receive the round keys and the input value and to perform the round operations, and a plurality of pipelined register provided between the round units to transmit the output value of a previous round unit as the input value of the next round unit. A plurality of round units are provided and pipelined registers are inserted between the round units so that it is possible to improve the performance of processing a large amount of data and to perform ARIA encryption at high speed.
    • 提供了一种高速流水线ARIA加密装置。 高速流水线ARIA加密装置包括:循环密钥发生器,用于生成使用形成为具有均匀比特的主密钥执行加密操作所需的多个循环密钥;多个圆形单元,其数量与 对应于接收轮回键的输入值的位数和输入值并执行循环操作的圆周运算次数,以及设置在圆形单元之间的多个流水线寄存器,以传送前一轮的输出值 单位作为下一轮单位的输入值。 提供多个圆形单元,并且在圆形单元之间插入流水线寄存器,使得可以提高处理大量数据的性能并高速执行ARIA加密。
    • 5. 发明授权
    • Apparatus and method for computing SHA-1hash function
    • 用于计算SHA-1hash函数的装置和方法
    • US07376685B2
    • 2008-05-20
    • US10917685
    • 2004-08-12
    • Yun Kyung LeeSung Ik JunYoung Soo ParkSang Woo LeeYoung Sae KimKyo Il Chung
    • Yun Kyung LeeSung Ik JunYoung Soo ParkSang Woo LeeYoung Sae KimKyo Il Chung
    • G06F7/00
    • H04L9/0643
    • An apparatus and method for computing a SHA-1 hash function value are provided. The apparatus includes a first register unit including a plurality of registers that store a first bit string of predetermined lengths for generation of a hash function value; a second register unit storing input data in units of second bit strings with predetermined lengths, and sequentially outputting the second bit strings; a third register unit performing an operation on the first bit string of the plurality of registers and the second bit strings output from the second register unit so as to generate and store a third bit string, and updating first-bit string of the plurality of registers based on the third bit string; and an adding unit combining the first bit string stored in the first register unit, the first bit string of the third bit string stored in the third register unit, and the original initial values stored in the first register unit so as to obtain a hash function value. Accordingly, it is possible to reduce the size of the apparatus and stably compute a hash function value at a high speed.
    • 提供了一种用于计算SHA-1散列函数值的装置和方法。 该装置包括:第一寄存器单元,包括多个寄存器,用于存储用于生成散列函数值的预定长度的第一位串; 第二寄存器单元,以预定长度的第二位串为单位存储输入数据,并顺序地输出第二位串; 第三寄存器单元,对所述多个寄存器中的第一位串执行操作,以及从所述第二寄存器单元输出的所述第二位串,以产生和存储第三位串,并且更新所述多个寄存器中的第一位串 基于第三位串; 以及添加单元,组合存储在第一寄存器单元中的第一位串,存储在第三寄存器单元中的第三位串的第一位串和存储在第一寄存器单元中的原始初始值,以获得散列函数 值。 因此,可以减小装置的尺寸并且可以高速稳定地计算散列函数值。
    • 7. 发明授权
    • Method of generating TCAM entry and method and apparatus for searching for TCAM entry
    • 生成TCAM条目的方法和用于搜索TCAM条目的方法和装置
    • US07584323B2
    • 2009-09-01
    • US11583189
    • 2006-10-18
    • Young Ho KimBo Heung ChungJae Deok LimSeung Ho RyuYong Sung JeonSang Woo LeeKi Young Kim
    • Young Ho KimBo Heung ChungJae Deok LimSeung Ho RyuYong Sung JeonSang Woo LeeKi Young Kim
    • G06F12/00
    • G11C15/00
    • Provided is a method of generating and searching for a single ternary content addressable memory (TCAM) entry for range search and exact-match search. First, it is determined whether an entry to be added is a range search entry or an exact-match search entry. When the entry is the range search entry, a bit at a predetermined position in the upper m bits corresponding to a range represented by the entry is set to “1” and the remaining bits including lower n bits is set to a “don't care” bit x, based on a range table for representing position information of one of the upper m bits which is set to “1” in ranges. When the entry is the exact-match search entry, the upper m bits is set to “don't care” bit x and the lower n bits is set to the entry value. By generating and searching for a single TCAM entry for a range search and an exact-match search, a space for storing the TCAM entry can be optimized and efficiency thereof can be improved.
    • 提供了一种生成和搜索用于范围搜索和精确匹配搜索的单个三进制内容可寻址存储器(TCAM)条目的方法。 首先,确定要添加的条目是范围搜索条目还是精确匹配搜索条目。 当条目是范围搜索条目时,与由条目表示的范围相对应的上位m位中的预定位置处的位被设置为“1”,并且包括较低n位的其余位被设置为“不” 基于用于表示在范围中被设置为“1”的上位m位之一的位置信息的范围表。 当条目是精确匹配搜索条目时,高位m被设置为“无关紧要”位x,低n位被设置为条目值。 通过生成和搜索用于范围搜索和精确匹配搜索的单个TCAM条目,可以优化用于存储TCAM条目的空间,并且可以提高其效率。
    • 10. 发明授权
    • ARIA encryption/decryption apparatus and method, and method of generating initialization key for the same
    • ARIA加密/解密装置和方法,以及为其生成初始化密钥的方法
    • US07933403B2
    • 2011-04-26
    • US11634480
    • 2006-12-06
    • Sang Woo LeeYong Sung JeonKi Young KimJong Soo Jang
    • Sang Woo LeeYong Sung JeonKi Young KimJong Soo Jang
    • H04L9/06
    • H04L9/0631H04L2209/122
    • Disclosed is an Academy, Research Institute, and Agency (ARIA) encryption/decryption apparatus for encrypting and decrypting input data by repeating a plurality of rounds. The ARIA encryption/decryption apparatus includes a first register storing input data or an intermediate calculation value according to a first control signal; a second register storing a input round key for every round; an exclusive OR operation unit performing an exclusive OR operation on values stored in the first and second registers; a substitution unit substituting a result of the exclusive OR operation on a basis of an ARIA substitution algorithm; a diffusion unit diffusing a result of the substitution in the substitution unit on a basis of an ARIA diffusion algorithm if a current round is not a final round; and a control unit outputting the first control signal so that an output of the diffusion unit is used as the intermediate calculation value if the current round is the final round or an output of the substitution unit is used as the intermediate calculation value if the current round is the final round, and outputting an output of the exclusive OR operation unit as a result of the ARIA encryption/decryption.
    • 公开了一种用于通过重复多次轮加密和解密输入数据的Academy,Research Institute和Agency(ARIA)加密/解密装置。 ARIA加密/解密装置包括根据第一控制信号存储输入数据或中间计算值的第一寄存器; 存储每轮的输入循环密钥的第二寄存器; 异或运算单元对存储在第一和第二寄存器中的值执行异或运算; 替代单元基于ARIA替换算法代替异或运算的结果; 如果当前轮次不是最后一轮,则扩散单元基于ARIA扩散算法在取代单元中扩散取代的结果; 以及控制单元,如果当前轮次是最后一轮,则使用扩散单元的输出作为中间计算值,或者如果当前轮次使用替代单位的输出作为中间计算值,则输出第一控制信号 是最后一轮,并且作为ARIA加密/解密的结果输出异或运算单元的输出。