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    Method and apparatus for generating secret key based on neural network synchronization
    1.
    发明授权
    Method and apparatus for generating secret key based on neural network synchronization 有权

    公开(公告)号：US11791997B2

    公开(公告)日：2023-10-17

    申请号：US17239237

    申请日：2021-04-23

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Nam-Su Jho ,  Juyoung Kim ,  Taek-Young Youn ,  Ku Young Chang

    IPC: H04L9/08 ,  G06N3/04

    CPC classification number: H04L9/0869 ,  G06N3/04

    Abstract: A method and an apparatus for generating a secret key for encrypted communication using a synchronized neural network, which includes: generating initial codewords based on a bit string of weight values of the synchronized neural network and transmitting a first partial codeword of the initial codewords to a device of another party; receiving a second partial codeword generated by the device of the other party and combining final codewords based on the second partial codeword received from the device of the party and the bit string of the weight values; performing an error correction on the combined final codewords and transmitting first restoration success information according to the error correction to the device of the other party; and receiving second restoration success information from the device of the other party and generating the secret key based on the restoration success information of the device of the other party, are provided.

    System and method for providing compressed encryption and decryption in homomorphic encryption based on integers
    2.
    发明授权
    System and method for providing compressed encryption and decryption in homomorphic encryption based on integers 有权
    基于整数在同态加密中提供压缩加解密的系统和方法

    公开(公告)号：US09374220B2

    公开(公告)日：2016-06-21

    申请号：US14174519

    申请日：2014-02-06

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Taek Young Youn ,  Nam Su Jho ,  Jung Yeon Hwang ,  Ku Young Chang

    IPC: H04L9/30 ,  H04L9/08 ,  H04L9/00

    CPC classification number: H04L9/0861 ,  H04L9/008 ,  H04L9/30

    Abstract: The present invention relates to a technique which provides a function of compressed encryption large pieces of plaintext information in a single ciphertext in order to improve a space efficiency of the encryption data which occupies most of a storage space to design an efficient SHE technique which is a base of the FHE technique design. More specifically, the present invention relates to a technique which is designed to improve a structure in which only one bit is encrypted/decrypted in the technique of the prior art to encrypt/decrypt multiple bit information to improve the space efficiency for storing a ciphertext.

    Abstract translation: 本发明涉及一种在单个密文中提供压缩大量明文信息的功能的技术，以便提高占用大部分存储空间的加密数据的空间效率，从而设计出一种有效的SHE技术 FHE技术设计基地。 更具体地，本发明涉及一种技术，其被设计为改进在现有技术中只有一个比特被加密/解密以加密/解密多个比特信息以提高用于存储密文的空间效率的结构。

    Multi-user searchable encryption system and method with index validation and tracing
    4.
    发明授权
    Multi-user searchable encryption system and method with index validation and tracing 有权
    多用户可搜索加密系统和索引验证和跟踪方法

    公开(公告)号：US08873749B2

    公开(公告)日：2014-10-28

    申请号：US13705666

    申请日：2012-12-05

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Nam-Su Jho ,  Ku Young Chang ,  Do Won Hong

    IPC: H04L9/00 ,  H04L9/08 ,  H04L9/30

    CPC classification number: H04L9/0861 ,  H04L9/3073

    Abstract: A multi-user searchable encryption system includes a key generation center to issue a private secret key to a user and trace information regarding a user who has generated an index, and a user terminal device to generate an index for searching for a database using the private secret key. The multi-user searchable encryption system includes a database (DB) server that verifies the index generated by the user terminal device and searches for corresponding data to the verified index.

    Abstract translation: 多用户可搜索的加密系统包括密钥生成中心，用于向用户发出专用秘密密钥并跟踪关于已经生成索引的用户的信息;以及用户终端设备，用于生成用于使用私有的搜索数据库的索引 密钥。 多用户可搜索的加密系统包括数据库（DB）服务器，用于验证由用户终端设备生成的索引并搜索与已验证索引相对应的数据。

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