公开(公告)号：US20250088202A1

公开(公告)日：2025-03-13

申请号：US18883373

申请日：2024-09-12

Applicant: Infineon Technologies AG

Inventor： Rainer Göttfert ,  Berndt Gammel ,  Martin Schläffer ,  Stefan Seidl

IPC: H03M13/11 ,  H03M13/15

Abstract: A method for correcting a data block comprises applying a first error correction and error detection in accordance with a first code to a first set of vectors of a data block, wherein the first code makes it possible to detect vectors having a number of errors above a maximum number as erroneous but uncorrectable, but only to correct vectors having a number of errors up to the maximum number, and applying a second error correction and error detection in accordance with a second code to at least some of a second set of vectors, wherein, if error correction of a vector of the second set causes the first error correction and error detection, for a vector of the first set that it detected as erroneous but uncorrectable, indicate fewer errors than the maximum number, error correction of the vector of the second set is revoked.

公开(公告)号：US20250088205A1

公开(公告)日：2025-03-13

申请号：US18882947

申请日：2024-09-12

Applicant: Infineon Technologies AG

Inventor： Berndt Gammel ,  Rainer Göttfert ,  Stefan Seidl ,  Martin Schläffer

IPC: H03M13/29 ,  H03M13/15

Abstract: A method for correcting a data block comprises correcting the data block in one or more iterations, each iteration comprising applying a first error correction and error detection method in accordance with a first code to a first set of vectors, wherein vectors of the first set of vectors for which t errors are detected but cannot be corrected by the error correction in accordance with the first code are marked, and applying a second error correction and error detection method in accordance with a second code to at least one portion of a second set of vectors, wherein the correction of vectors of the second set of vectors which contain one or more errors that could be corrected in accordance with the second code but relate to entries that do not belong to vectors of the marked vectors of the first set of vectors are skipped.

公开(公告)号：US20240243921A1

公开(公告)日：2024-07-18

申请号：US18409142

申请日：2024-01-10

Applicant: Infineon Technologies AG

Inventor： Martin Schläffer ,  Martin Steinbach

IPC: H04L9/32 ,  H04L9/30

CPC classification number: H04L9/3247 ,  H04L9/30

Abstract: An approach for generating a Hash-based signature based on a Winternitz one-time signature scheme, wherein the signature comprises several signature values (SIG[N1], . . . , SIG[N32]), which are determined via Hash-functions that are iteratively applied depending on a message and/or checksum, comprising the step: the signature values are generated at least partially in a mixed order, which is determined based on at least one of the following: (i) a predefined or deterministic pattern, (ii) a pseudo-random pattern, or (iii) a random pattern.

公开(公告)号：US12255668B2

公开(公告)日：2025-03-18

申请号：US18195539

申请日：2023-05-10

Applicant: Infineon Technologies AG

Inventor： Rainer Göttfert ,  Wieland Fischer ,  Berndt Gammel ,  Martin Schläffer

IPC: H03M13/00 ,  H03M13/15

Abstract: Error correction is proposed in which a syndrome calculation is carried out in a code domain of a second code and an efficient error correction algorithm is carried out in a code domain of a first code.

公开(公告)号：US20240313962A1

公开(公告)日：2024-09-19

申请号：US18602658

申请日：2024-03-12

Applicant: Infineon Technologies AG

Inventor： Martin Schläffer ,  Florian Mendel

IPC: H04L9/08

CPC classification number: H04L9/088

Abstract: According to various embodiments, a security controller is configured to decompose a selection value into at least a first share and a second share, wherein the selection value indicates which of two selection function input values should be selected. The security controller comprises a processor configured to execute a first operation to generate a first result depending on the first share, execute a second operation to generate a second result depending on the second share and execute a third operation which processes the first result and the result in such a way that the execution of the first operation, the second operation and the third operation implement a selection function which combines the selection function input values with the selection value such that the combination results in the one of the selection function input values for which the selection value indicates that it is to be selected.

公开(公告)号：US20230370092A1

公开(公告)日：2023-11-16

申请号：US18195539

申请日：2023-05-10

Applicant: Infineon Technologies AG

Inventor： Rainer Göttfert ,  Wieland Fischer ,  Berndt Gammel ,  Martin Schläffer

IPC: H03M13/15 ,  H03M13/00

CPC classification number: H03M13/159 ,  H03M13/611

Abstract: Error correction is proposed in which a syndrome calculation is carried out in a code domain of a second code and an efficient error correction algorithm is carried out in a code domain of a first code.

公开(公告)号：US20230370091A1

公开(公告)日：2023-11-16

申请号：US18195469

申请日：2023-05-10

Applicant: Infineon Technologies AG

Inventor： Rainer Göttfert ,  Wieland Fischer ,  Berndt Gammel ,  Martin Schläffer

IPC: H03M13/15 ,  H03M13/00

CPC classification number: H03M13/1575 ,  H03M13/616

Abstract: Error correction is proposed, wherein, on the basis of a data word, a syndrome calculation is carried out with a matrix M on the basis of a matrix H of a code, and, if the result of the syndrome calculation reveals that the data word is erroneous, the result of the syndrome calculation is transformed by means of a linear mapping. Next, an error vector is determined on the basis of the result of the linear mapping by means of an efficient error correction algorithm and the erroneous data word is corrected on the basis of the error vector.