公开(公告)号：US10678707B2

公开(公告)日：2020-06-09

申请号：US15792817

申请日：2017-10-25

Applicant: Infineon Technologies AG

Inventor： Thomas Poeppelmann ,  Stefan Hackenberg ,  Stefan Heiss ,  Markus Rau ,  Stephan Wassmann

IPC: G06F12/14 ,  G06F21/75 ,  H04L9/06 ,  G06F11/10 ,  G06F12/02 ,  G11C16/34 ,  G11C7/10

Abstract: According to an embodiment, a data processing device is described comprising a deformer configured to deform a first data block in accordance with a first seed, a seed generator configured to generate a sequence of second seeds, wherein the sequence of second seeds comprises the first seed, a cryptographic processor configured to receive the deformed first data block and, for each second seed, to deform the deformed first data block in accordance with the second seed, to generate a sequence of second data blocks and to cryptographically process each second data block of the sequence of second data blocks to generate a sequence of processed data blocks and an extractor configured to extract a result of the cryptographic processing of the first data block from the sequence of processed data blocks.

公开(公告)号：US20180121369A1

公开(公告)日：2018-05-03

申请号：US15792817

申请日：2017-10-25

Applicant: Infineon Technologies AG

Inventor： Thomas Poeppelmann ,  Stefan Hackenberg ,  Stefan Heiss ,  Markus Rau ,  Stephan Wassmann

IPC: G06F12/14 ,  G06F11/10 ,  G11C16/34 ,  G06F12/02

Abstract: According to an embodiment, a data processing device is described comprising a deformer configured to deform a first data block in accordance with a first seed, a seed generator configured to generate a sequence of second seeds, wherein the sequence of second seeds comprises the first seed, a cryptographic processor configured to receive the deformed first data block and, for each second seed, to deform the deformed first data block in accordance with the second seed, to generate a sequence of second data blocks and to cryptographically process each second data block of the sequence of second data blocks to generate a sequence of processed data blocks and an extractor configured to extract a result of the cryptographic processing of the first data block from the sequence of processed data blocks.