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1. 发明授权

US09647833B2 System and method for identity-based key management 有权
公开(公告)号：US09647833B2
公开(公告)日：2017-05-09
申请号：US14447985
申请日：2014-07-31
申请人： SAMSUNG SDS CO., LTD. , SDS AMERICA, INC.
发明人： Hyo-Jin Yoon , Madjid Nakhjiri
IPC分类号： H04L29/06 , H04L9/08 , H04L9/32
CPC分类号： H04L9/0847 , H04L9/0863 , H04L9/3226 , H04L63/0442 , H04L63/061 , H04L63/083 , H04L63/0853
摘要： A system and method for identity (ID)-based key management are provided. The ID-based key management system includes an authentication server configured to authenticate a terminal through key exchange based on an ID and a password of a user of the terminal, set up a secure channel with the terminal, and provide a private key based on the ID of the user to the terminal through the secure channel, and a private-key generator configured to generate the private key corresponding to the ID of the terminal user according to a request of the authentication server.

2. 发明授权

US11101994B2 Method of provisioning key information and apparatus using the method 有权
公开(公告)号：US11101994B2
公开(公告)日：2021-08-24
申请号：US16118102
申请日：2018-08-30
申请人： SAMSUNG SDS CO., LTD.
发明人： Hyo-Jin Yoon , Kyu-Young Choi , Duk-Jae Moon , Ji-Hoon Cho
IPC分类号： G06F21/00 , H04L9/08
摘要： A method of provisioning key information and a device using the method are provided. The method of provisioning key information according to one embodiment of the present disclosure includes generating key information for encryption and decryption from seed information using a key information generation algorithm and deleting code that corresponds to the key information generation algorithm from the device based on the generation of the key information.

3. 发明授权

US09515825B2 Method for password based authentication and apparatus executing the method 有权
标题翻译：基于密码的认证方法和执行该方法的设备
公开(公告)号：US09515825B2
公开(公告)日：2016-12-06
申请号：US14067232
申请日：2013-10-30
申请人： SAMSUNG SDS CO., LTD. , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
发明人： Hyo-Jin Yoon , Tae-Kyoung Kwon
IPC分类号： H04L29/06 , H04L9/08
CPC分类号： H04L9/0844 , H04L9/0838 , H04L9/0847 , H04L63/083
摘要： Provided are an authentication method and an apparatus for the method. An authentication method includes generating, at a terminal, an identifier (ID)-based secret key using an ID of a user of the terminal and key generation factors exchanged with a server, encrypting, at the terminal, a password of the user using a symmetric key encryption algorithm taking the generated secret key as a symmetric key, and requesting authentication for the terminal user by transmitting the encrypted password to the server, and receiving, at the terminal, a response to the authentication request from the server.
摘要翻译：提供了一种用于该方法的认证方法和装置。认证方法包括使用终端的用户的ID和与服务器交换的密钥生成因子，在终端生成基于标识符（ID）的秘密密钥，在终端处使用用户密码来加密用户的密码将生成的秘密密钥作为对称密钥的对称密钥加密算法，通过向服务器发送加密的密码来请求对终端用户的认证，并在终端从服务器接收对认证请求的响应。

4. 发明授权

US09479327B2 Apparatus and method for generating key 有权
标题翻译：用于生成密钥的装置和方法
公开(公告)号：US09479327B2
公开(公告)日：2016-10-25
申请号：US14561641
申请日：2014-12-05
申请人： SAMSUNG SDS CO., LTD.
发明人： Hyo-Jin Yoon
IPC分类号： H04L9/00 , H04L9/32 , H04L9/06 , H04L9/08
CPC分类号： H04L9/0631 , H04L9/0861 , H04L9/0866 , H04L9/3073 , H04L9/3226
摘要： Provided are an apparatus and method for generating a key. The apparatus includes: an input analyzer configured to identify a plurality of symbols from user identity (ID) information, and to derive at least one permutation from the plurality of symbols; and a key generator configured to obtain a plurality of pre-calculated keys including a plurality of first pre-calculated keys and at least one second pre-calculated key, and to generate, from the plurality of pre-calculated keys, a cryptographic key corresponding to the user ID information, the plurality of first pre-calculated keys respectively corresponding to the plurality of symbols, the at least one second pre-calculated key respectively corresponding to the at least one permutation.
摘要翻译：提供了一种用于产生密钥的装置和方法。该装置包括：输入分析器，被配置为从用户身份（ID）信息中识别多个符号，并从多个符号中导出至少一个置换; 以及密钥生成器，被配置为获得包括多个第一预先计算的密钥和至少一个第二预计算密钥的多个预先计算的密钥，并且从所述多个预先计算的密钥中生成对应于分别对应于多个符号的多个第一预先计算的密钥，分别对应于至少一个置换的至少一个第二预计算密钥的用户ID信息。

5. 发明申请

US20210126768A1 APPARATUS AND METHOD FOR ENCRYPTION 有权
公开(公告)号：US20210126768A1
公开(公告)日：2021-04-29
申请号：US16666098
申请日：2019-10-28
申请人： SAMSUNG SDS CO., LTD.
发明人： Eun-Kyung Kim , Hyo-Jin Yoon , Duk-Jae Moon , Min-Woo Jeong , Jung-Hoon Sohn , Young-Hyun Kim , Hun-Hee Yu , Ji-Hoon Kwon
IPC分类号： H04L9/00 , G09C1/00 , G06N5/04 , G06N20/00
摘要： An apparatus for encryption according to an embodiment of the present disclosure comprises a classifier configured to classify each data included in an original data set into one of encryption target data and non-encryption target data on the basis of at least one of determination on whether or not an operation to be applied to each data included in the original data set for an analysis of the original data set is a preset operation and determination on whether or not each data included in the original data set is sensitive information; and an encryptor configured to encrypt the encryption target data among the data included in the original data set using a homomorphic encryption algorithm.

6. 发明授权

US10903975B2 Apparatus and method for performing operation being secure against side channel attack 有权
公开(公告)号：US10903975B2
公开(公告)日：2021-01-26
申请号：US16101711
申请日：2018-08-13
申请人： SAMSUNG SDS CO., LTD.
发明人： Kyu-Young Choi , Duk-Jae Moon , Hyo-Jin Yoon , Ji-Hoon Cho
IPC分类号： H04L9/00 , H04L9/08
摘要： An apparatus and method for performing an operation which are secure against side-channel attack are provided. According to one embodiment of the present disclosure, the apparatus includes a first extractor configured to extract one or more first parameter candidate values corresponding to a seed value from a first parameter candidate value set, a first outputter configured to output a first output values using the extracted first parameter candidate values, a second extractor configured to extract one or more second parameter candidate values corresponding to the seed value from a second parameter candidate value set, and a second outputter configured to output a second output value using the extracted second parameter candidate values wherein the second output value is capable of being generated using the first output value.

7. 发明授权

US10404451B2 Apparatus and method for message communication 有权
公开(公告)号：US10404451B2
公开(公告)日：2019-09-03
申请号：US14926523
申请日：2015-10-29
申请人： SAMSUNG SDS CO., LTD. , Industry-Academic Cooperation Foundation, Yonsei University
发明人： Jung-Hoon Sohn , Seon-Young Lee , Tae-Kyoung Kwon , Sang-Ho Park , Hyo-Jin Yoon
IPC分类号： H04L9/08 , H04L29/06 , H04L9/30
摘要： There are provided a message communication device and method. A message communication device according to an exemplary embodiment includes a header modifying unit configured to modify a message header by adding additional information used together with an identity when a public key corresponding to the identity of a recipient is generated to be the message header, and a message transmitting unit configured to transmit a message including data encrypted based on the public key and the modified message header.

8. 发明授权

US09515821B2 Apparatus and method for data encryption 有权
标题翻译：数据加密的装置和方法
公开(公告)号：US09515821B2
公开(公告)日：2016-12-06
申请号：US14576727
申请日：2014-12-19
申请人： SAMSUNG SDS CO., LTD.
发明人： Kyu-Young Choi , Ji-Hoon Cho , Hyo-Jin Yoon
IPC分类号： H04L9/00 , H04L9/08 , H04L9/06
CPC分类号： H04L9/0819 , H04L9/0637 , H04L9/0822 , H04L9/0825 , H04L2209/16 , H04L2209/24
摘要： Provided is an apparatus for encrypting data including a key determiner configured to determine a cipher key for white-box cryptography (WBC)-based encryption and a symmetric key different from the cipher key and an encrypter configured to generate a ciphertext of the data using the WBC-based encryption and symmetric-key-based encryption with the symmetric key.
摘要翻译：提供了一种用于加密数据的装置，包括密钥确定器，其被配置为确定用于基于白盒密码术（WBC）的加密的密码密钥和与密码密钥不同的对称密钥，加密器被配置为使用所述加密密钥生成密文的密文基于WBC的加密和基于对称密钥的加密与对称密钥。

9. 发明授权

US11277256B2 Ciphertext comparison method using homomorphic encryption and apparatus for performing the same 有权
公开(公告)号：US11277256B2
公开(公告)日：2022-03-15
申请号：US16661371
申请日：2019-10-23
申请人： SAMSUNG SDS CO., LTD.
发明人： Eun-Kyung Kim , Hyo-Jin Yoon , Young-Hyun Kim , Hee-Hyeon Park
IPC分类号： H04L9/00 , H04L9/06 , G06F7/50 , G06F7/52
摘要： A ciphertext comparison method uses homomorphic encryption. An apparatus performs the ciphertext comparison method using the homomorphic encryption. The ciphertext comparison method using homomorphic encryption includes acquiring a first ciphertext obtained by encrypting first real-number data using a homomorphic evaluation algorithm and a second ciphertext obtained by encrypting second real-number data using the homomorphic evaluation algorithm, and generating a ciphertext for a result for comparison in size between the first real-number data and the second real-number data using homomorphic evaluation for the first ciphertext, the second ciphertext, and an approximation function for approximating a signum function.

10. 发明授权

US11102241B2 Apparatus and method for performing operation being secure against side channel attack 有权
公开(公告)号：US11102241B2
公开(公告)日：2021-08-24
申请号：US16160357
申请日：2018-10-15
申请人： SAMSUNG SDS CO., LTD.
发明人： Kyu-Young Choi , Duk-Jae Moon , Hyo-Jin Yoon , Ji-Hoon Cho
IPC分类号： H04L29/06 , H04L29/08 , H04L12/26
摘要： An apparatus and method for performing an operation which are secure against side-channel attack are provided. According to one embodiment of the present disclosure, the apparatus includes a first outputter configured to output a first output value corresponding to a seed value using a first parameter candidate value set, a second outputter configured to output a second output value using a second parameter candidate value set wherein the second output value corresponds to the seed value and is capable of being generated using the first output value, a third outputter configured to output a third output value using the seed value and the first output value, and a fourth outputter configured to output a fourth output value using the second output value and the third output value, wherein the fourth output value is capable of being generated using the seed value.

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