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公开(公告)号：US11853419B2
公开(公告)日：2023-12-26
申请号：US17081810
申请日：2021-02-01
Inventor： Ji Hoon Kwon , Joo Hee Lee , Hyo Jin Yoon , Ji Hoon Cho , Dong Guk Han , Bo Yeon Sim , Il Ju Kim , Tae Ho Lee , Jae Seung Han
CPC classification number: G06F21/556 , G06F7/588 , G06F21/54 , G06F21/602
Abstract: A method for preventing side-channel attack according to an embodiment includes generating an order table which includes a position index value for each bit value of a bit string that is secret information to be generated through a decryption algorithm of an Nth Degree Truncated Polynomial Ring Units (NTRU) LPRime algorithm, shuffling a sort order of the position index value for the each bit value in the order table based on a random number, determining a generation order for the each bit value according to the sort order of the position index value for the each bit value in the order table, and generating the secret information through the decryption algorithm. The secret information is generated by generating the each bit value according to the determined generation order.
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公开(公告)号：US20220368518A1
公开(公告)日：2022-11-17
申请号：US17514135
申请日：2021-10-29
Inventor： Joo Hee Lee , Duk Jae Moon , Hyo Jin Yoon , Ji Hoon Cho , Seong Kwang Kim , Joo Young Lee , Jin Cheol Ha
Abstract: A method for generating a key stream according to an embodiment includes generating r round keys that are each N-dimensional integer vectors including elements of an integer set defined based on a prime number t, based on a random bit string, an encryption counter, and a secret key that is an N-dimensional integer vector consisting of elements of the integer set , generating a first round output vector x1 by performing a modular addition operation on an initial vector and a first round key RK1 of the r round keys with the prime number t as a modulus, and generating a key stream that is an N-dimensional integer vector consisting of elements of the integer set from the first round output vector x1 by using a second to r-th round keys of the r round keys, and one or more first round functions and a second round function.
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公开(公告)号：US12008443B2
公开(公告)日：2024-06-11
申请号：US17081519
申请日：2020-10-27
Applicant: SAMSUNG SDS CO., LTD.
Inventor： Eun Kyung Kim , Hyo Jin Yoon , Ji Hoon Cho , Min Jung Kim , Young Seon Lee
CPC classification number: G06N20/00 , H04L9/008 , H04L9/0618
Abstract: A method for training an analysis model according to an embodiment includes receiving synthetic data for original data from a client apparatus, determining a hyperparameter value for analysis model training using the synthetic data, receiving a ciphertext for the original data from the client apparatus, and training the analysis model using the determined hyperparameter value and the received cipher text.
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公开(公告)号：US11509453B2
公开(公告)日：2022-11-22
申请号：US16884889
申请日：2020-05-27
Applicant: SAMSUNG SDS CO., LTD.
Inventor： Eun Kyung Kim , Young Hyun Kim , Jin Hyuck Jeong , Duk Jae Moon , Hyo Jin Yoon , Jung Hoon Sohn , Ki Hyo Moon , Seung Hyun Kang , Seung Ro Joo
Abstract: A method for data analysis according to an embodiment includes acquiring, from a client device, a ciphertext for a precomputation result generated by applying some of a plurality of operations for performing an analysis algorithm based on target data to the target data, and generating an encrypted computation result for remaining operations of the plurality of operations by using the ciphertext.
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5.发明申请公开(公告)号：US20130110899A1
公开(公告)日：2013-05-02
申请号：US13664822
申请日：2012-10-31
Applicant: SAMSUNG SDS CO., LTD.
Inventor： Soon Mok Kwon , Seon Young Lee , Jung Hoon Sohn , Hyo Jin Yoon
IPC: G06F17/10
CPC classification number: G06F7/72 , H04L9/3013
Abstract: Distributed processing system and method for discrete logarithm calculation. The speed and resource efficiency of discrete logarithm calculation may be improved by allowing a plurality of operation agents to distributively process an operation of generating a modulo multiplication auxiliary table, an operation of generating a pre-calculation table, and an operation of searching for an answer by applying an iterated function for discrete logarithm calculation in a discrete logarithm calculation operation using the pre-calculation table.
Abstract translation: 分布式处理系统和离散对数计算方法。 可以通过允许多个操作代理分配地处理生成模乘法辅助表的操作，生成预计算表的操作和搜索答案的操作来提高离散对数计算的速度和资源效率 通过在使用预计算表的离散对数计算操作中应用用于离散对数计算的迭代函数。
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Patent Agency Ranking
公开(公告)号：US20250023916A1
公开(公告)日：2025-01-16
申请号：US18678988
申请日：2024-05-30
Applicant: Samsung SDS Co., Ltd.
Inventor： Chang Hoon LEE , Hun Hee Yu , Eun Kyung Kim , Hyo Jin Yoon , Ji Hoon Cho
IPC: H04L9/40
Abstract: There is provided a communication device. The communication device may comprise one or more processors; a communication interface; and a memory that stores a computer program executed by the one or more processors, wherein the computer program includes instructions for operations of: forming a general security channel according to a first transport layer security (TLS) protocol that does not support a post-quantum cryptography algorithm with another communication device; forming a communication channel of an application layer (L7) with another communication device through the general security channel; forming a quantum security channel by performing a handshake procedure according to a second TLS protocol that supports the post-quantum cryptography algorithm with another communication device through the communication channel; and communicating with another communication device through the quantum security channel.
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7.发明授权公开(公告)号：US11646877B2
公开(公告)日：2023-05-09
申请号：US16683974
申请日：2019-11-14
Inventor： Eunkyung Kim , Hyo Jin Yoon , Jung Hee Cheon , Jinhyuck Jeong
CPC classification number: H04L9/085 , H04L9/008 , H04L9/0819 , H04L9/0891
Abstract: A method of generating a secret key according to one embodiment includes generating a share of each of a user and a plurality of other users for a secret key of the user, providing the share of each of the plurality of other users to a user terminal of each of the plurality of other users, receiving a share of the user for a secret key of each of the plurality of other users from the user terminal of each of the plurality of other users, and generating a new secret key of the user using the share of the user for the secret key of the user and the shares of the user for the secret key of each of the plurality of other users.
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公开(公告)号：US11329798B2
公开(公告)日：2022-05-10
申请号：US17079982
申请日：2020-10-26
Applicant: SAMSUNG SDS CO., LTD.
Inventor： Jin Hyuck Jeong , Joo Hee Lee , Eun Kyung Kim , Kyu Young Choi , Duk Jae Moon , Hyo Jin Yoon
Abstract: An apparatus for set intersection operation according to an embodiment includes a ciphertext acquisition unit configured to acquire a ciphertext for a first vector corresponding to a first subset of a universal set including a plurality of elements from an encryption apparatus, a transform unit configured to generate a second vector corresponding to a second subset of the universal set, a computation unit configured to generate a ciphertext for a third vector corresponding to an intersection of the first subset and the second subset, based on the ciphertext for the first vector and the second vector, and a ciphertext providing unit configured to provides the ciphertext for the third vector to the encryption apparatus.
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9.发明授权Apparatus and method for generating secret key for ID-based encryption system and recording medium having program recorded thereon for causing computer to execute the method 有权用于产生用于基于ID的加密系统的秘密密钥的装置和方法以及记录有用于使计算机执行该方法的程序的记录介质公开(公告)号：US09172530B2
公开(公告)日：2015-10-27
申请号：US13906867
申请日：2013-05-31
Applicant: SAMSUNG SDS CO., LTD.
Inventor： Seon Young Lee , Ki Sang Kwon , Hyo Jin Yoon
CPC classification number: H04L9/0816 , H04L9/3006 , H04L9/3066
Abstract: A private key generation apparatus for generating a private key corresponding to a user ID using the user ID as a public key is disclosed. When a user ID is input, an ID conversion unit outputs a specific element value of a discrete logarithm cyclic group having a one-to-one correspondence relationship with an input user ID. A private key calculation unit calculates a discrete logarithm result value based on the output specific element value of the discrete logarithm cyclic group and calculates a private key having a one-to-one correspondence relationship with the user ID. According to the present invention, it is possible to concretely propose a method of calculating a secret key, capable of guaranteeing a one-to-one correspondence relationship between the ID and the private key by applying a method of calculating a discrete logarithm using the pre-computation table in an ID-based encryption system.
Abstract translation: 公开了一种私钥生成装置，用于使用该用户ID作为公开密钥来生成与用户ID对应的私钥。 当输入用户ID时，ID转换单元输出与输入的用户ID具有一一对应关系的离散对数循环群的特定元素值。 私钥计算单元基于离散对数循环群的输出特定元素值计算离散对数结果值，并计算与用户ID具有一一对应关系的私钥。 根据本发明，可以具体地提出一种计算秘密密钥的方法，其能够通过应用使用预先计算的离散对数的方法来保证ID和私钥之间的一对一对应关系 计算表在基于ID的加密系统中。
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10.发明授权公开(公告)号：US09032007B2
公开(公告)日：2015-05-12
申请号：US13664822
申请日：2012-10-31
Applicant: Samsung SDS Co., Ltd.
Inventor： Soon Mok Kwon , Seon Young Lee , Jung Hoon Sohn , Hyo Jin Yoon
CPC classification number: G06F7/72 , H04L9/3013
Abstract: Distributed processing system and method for discrete logarithm calculation. The speed and resource efficiency of discrete logarithm calculation may be improved by allowing a plurality of operation agents to distributively process an operation of generating a modulo multiplication auxiliary table, an operation of generating a pre-calculation table, and an operation of searching for an answer by applying an iterated function for discrete logarithm calculation in a discrete logarithm calculation operation using the pre-calculation table.
Abstract translation: 分布式处理系统和离散对数计算方法。 可以通过允许多个操作代理分配地处理生成模乘法辅助表的操作，生成预计算表的操作和搜索答案的操作来提高离散对数计算的速度和资源效率 通过在使用预计算表的离散对数计算操作中应用用于离散对数计算的迭代函数。
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