公开(公告)号：US12021969B2

公开(公告)日：2024-06-25

申请号：US17598189

申请日：2020-04-01

Applicant: Cryptography Research, Inc.

Inventor： Pascal Sasdrich ,  Begül Bilgin ,  Michael Hutter

IPC: H04L29/00 ,  H04L9/00 ,  H04L9/06

CPC classification number: H04L9/0631 ,  H04L9/003 ,  H04L2209/04 ,  H04L2209/125

Abstract: An input data may be received. A portion of a cryptographic operation may be performed with the received input data at a first function component. During the performance of the cryptographic operation at the first function component, a pre-charge operation may be performed at a second function component. Furthermore, the second function component may be used to perform another portion of the cryptographic operation with a result of the portion of the cryptographic operation performed at the first function component.

公开(公告)号：US20240396709A1

公开(公告)日：2024-11-28

申请号：US18670037

申请日：2024-05-21

Applicant: Cryptography Research, Inc.

Inventor： Pascal Sasdrich ,  Begül Bilgin ,  Michael Hutter

IPC: H04L9/06 ,  H04L9/00

Abstract: An input data may be received. A portion of a cryptographic operation may be performed with the received input data at a first function component. During the performance of the cryptographic operation at the first function component, a pre-charge operation may be performed at a second function component. Furthermore, the second function component may be used to perform another portion of the cryptographic operation with a result of the portion of the cryptographic operation performed at the first function component.

公开(公告)号：US20180212761A1

公开(公告)日：2018-07-26

申请号：US15856682

申请日：2017-12-28

Applicant: Cryptography Research, Inc.

Inventor： Begül Bilgin ,  Michael Hutter

IPC: H04L9/06 ,  H04L9/08

CPC classification number: H04L9/0631 ,  H04L9/0625 ,  H04L9/065 ,  H04L9/0861

Abstract: Systems and methods for efficient computation of stream ciphers. An example system for implementing a stream cipher, may comprise: a sub-round computation circuit of a first type configured to perform a subset of transformations of a cipher computation round on a round input state, each transformation of the subset of transformations including at least one of: a bitwise addition operation, a bitwise exclusive disjunction operation, or a bitwise rotation operation. The sub-round computation circuit of the first type may comprise: one or more of sub-round computation circuits of a second type, wherein each sub-round computation circuit of the second type is configured to perform the subset of transformations of the cipher computation round on a respective part of the round input state.

公开(公告)号：US20240364497A1

公开(公告)日：2024-10-31

申请号：US18646554

申请日：2024-04-25

Applicant: CRYPTOGRAPHY RESEARCH, INC.

Inventor： Michael Alexander Hamburg ,  Begül Bilgin

IPC: H04L9/06

CPC classification number: H04L9/0618

Abstract: Disclosed systems and techniques include a cryptographic processor for processing of both unprotected data and protected data using an unprotected data path. In one implementation, the cryptographic processor includes a processing unit, and a control unit to selectively cause the processing unit to operate in a public mode or a secure mode. In the public mode, the processing unit performs a computational operation to compute a nonlinear function of a public data. In the secure mode, the processing unit computes, over a plurality of iterations, a plurality of shares of the nonlinear function of a secure data. At each iteration, the processing unit performs multiple instances of the computational operation to compute a respective share of the nonlinear function of the secure data.

公开(公告)号：US20220191004A1

公开(公告)日：2022-06-16

申请号：US17598189

申请日：2020-04-01

Applicant: Cryptography Research, Inc.

Inventor： Pascal Sasdrich ,  Begül Bilgin ,  Michael Hutter

IPC: H04L9/06 ,  H04L9/00

Abstract: An input data may be received. A portion of a cryptographic operation may be performed with the received input data at a first function component. During the performance of the cryptographic operation at the first function component, a pre-charge operation may be performed at a second function component. Furthermore, the second function component may be used to perform another portion of the cryptographic operation with a result of the portion of the cryptographic operation performed at the first function component.