公开(公告)号：US20160127366A1

公开(公告)日：2016-05-05

申请号：US14890022

申请日：2014-01-07

Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Inventor： Masahiro YAGISAWA

IPC: H04L29/06 ,  H04L9/32

CPC classification number: H04L63/0876 ,  H04L9/3247 ,  H04L63/0853 ,  H04L63/123 ,  H04L2209/42

Abstract: Technologies are generally described for providing an anonymous signature scheme. In some examples, a method performed under control of an end device ma 320 include receiving public parameters from a central system; generating an enciphering function based at least in part on the received public parameters; calculating parameters for a signature based at least in part on the generated enciphering function; and transmitting, to a verifying device, the signature that includes a message, a key of the end device and the calculated parameters for the signature.

Abstract translation: 技术通常被描述为提供匿名签名方案。 在一些示例中，在终端设备ma 320的控制下执行的方法包括从中央系统接收公共参数; 至少部分地基于所接收的公共参数来生成加密功能; 至少部分地基于所生成的加密函数来计算签名的参数; 以及向验证装置发送包括消息的签名，终端设备的密钥和用于签名的计算参数。

公开(公告)号：US20170201371A1

公开(公告)日：2017-07-13

申请号：US14990028

申请日：2016-01-07

Applicant: Empire Technology Development LLC

Inventor： Masahiro YAGISAWA

IPC: H04L9/06 ,  H04L9/14 ,  H04L9/08

CPC classification number: H04L9/0618 ,  H04L9/008 ,  H04L9/0822 ,  H04L9/14 ,  H04L2209/24

Abstract: Technologies are generally described for providing a fully homomorphic public key encryption scheme. In some examples, a method performed under control of a transmitter may include receiving, from a server, a system parameter; selecting a secret decryption key corresponding to the transmitter; generating a first public encryption key for the transmitter, based at least in part on the secret decryption key corresponding to the transmitter and the system parameter; receiving, from the server, a public encryption key corresponding to a receiver; enciphering a message into a first ciphertext, based at least in part on the public encryption key corresponding to the receiver and the secret decryption key corresponding to the transmitter; and transmitting, to a data processing device, a request to process the message by processing the first ciphertext that corresponds to the message into a second ciphertext without deciphering the first ciphertext.

公开(公告)号：US20160127125A1

公开(公告)日：2016-05-05

申请号：US14895060

申请日：2014-02-28

Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Inventor： Masahiro YAGISAWA

IPC: H04L9/06 ,  H04L9/14

CPC classification number: H04L9/0618 ,  H04L9/008 ,  H04L9/14 ,  H04L2209/24

Abstract: Technologies are generally described for providing a fully homomorphic encryption scheme. In some examples, a method performed under control of a first device may include determining an enciphering function, based at least in part on a secret key of the first device and a system parameter; enciphering a plaintext into a first ciphertext, based at least in part on the enciphering function; transmitting, to a server, the first ciphertext and the system parameter; receiving, from a second device, a second ciphertext to which the first ciphertext has been processed by the second device without deciphering the first ciphertext; and deciphering the second ciphertext, based at least in part on the system parameter and a deciphering function.

Abstract translation: 技术通常被描述为提供完全同态加密方案。 在一些示例中，在第一设备的控制下执行的方法可以包括至少部分地基于第一设备的秘密密钥和系统参数来确定加密功能; 至少部分地基于加密功能将明文加密成第一密文; 向服务器发送第一密文和系统参数; 从第二设备接收第二密文已被第二设备处理的第二密文，而不解密第一密文; 并且至少部分地基于系统参数和解密功能来解密第二密文。