ClassID:

227267

H04L2209/046 - CPC Classification

Classification description:

Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication; Masking or blinding of operations, operands or results of the operations

Recent Application in this class:
#1
20260081771
2026-03-19

ENCRYPTION/DECRYPTION METHOD AND DEVICE

#2
20250392444
2025-12-25

INSTRUCTION TO ACCELERATE CRYPTOGRAPHIC PROCESSING

#3
20240396726
2024-11-28

THRESHOLD SECRET SHARE GENERATION FOR DISTRIBUTED SYMMETRIC CRYPTOGRAPHY

#4
20240313942
2024-09-19

METHOD FOR SECURING A MULTIPLE POINT MULTIPLICATION OPERATION AGAINST SIDE-CHANNEL ATTACKS

#5
20240281214
2024-08-22

METHOD FOR SELECTING A VALUE AMONGST TWO VALUES RECORDED IN TWO DIFFERENT REGISTERS

#6
20240015012
2024-01-11

Rejection of masked polynomials

#7
20240007269
2024-01-04

General-Purpose Lightweight Hash Processing Method and System and Storable Medium

#8
20230379133
2023-11-23

MULTIPLICATIVE MASKING FOR CRYPTOGRAPHIC OPERATIONS

#9
20230246806
2023-08-03

Efficient masking of secure data in ladder-type cryptographic computations

#10
20230208619
2023-06-29

Method to request sensitive data from a recipient and to establish a secure communication with the recipient

#11
20230179395
2023-06-08

Using cryptographic blinding for efficient use of montgomery multiplication

#12
20230121425
2023-04-20

Multiple data source secure data processing

#13
20220414268
2022-12-29

Protection of data processed by an encryption algorithm

#14
20220337398
2022-10-20

Masked decoding of polynomials

#15
20220329408
2022-10-13

SECURE GRADIENT DESCENT COMPUTATION METHOD, SECURE DEEP LEARNING METHOD, SECURE GRADIENT DESCENT COMPUTATION SYSTEM, SECURE DEEP LEARNING SYSTEM, SECURE COMPUTATION APPARATUS, AND PROGRAM

#16
20220052846
2022-02-17

JOINT BLIND KEY ESCROW

#17
20220038277
2022-02-03

Cryptographic method of secure comparison of two secret data x and y

#18
20210397747
2021-12-23

Electromagnetic and power noise injection for hardware operation concealment

#19
20210391977
2021-12-16

PROTECTION OF A CIPHER ALGORITHM

#20
20210367754
2021-11-25

Computing device processing expanded data

#21
20210306134
2021-09-30

Method for performing cryptographic operations on data in a processing device, corresponding processing device and computer program product

#22
20210281391
2021-09-09

Secure data processing

#23
20210203642
2021-07-01

Privacy-preserving learning of web traffic

#24
20210194689
2021-06-24

Method for performing cryptographic operations in a processing device, corresponding processing device and computer program product

#25
20210173618
2021-06-10

Converting a boolean masked value to an arithmetically masked value for cryptographic operations

#26
20210167947
2021-06-03

SYSTEM AND METHOD FOR PROCESSING SECRET SHARING AUTHENTICATION

#27
20210152331
2021-05-20

Protecting polynomial hash functions from external monitoring attacks

#28
20210135854
2021-05-06

Method for signing a new block in a decentralized blockchain consensus network

#29
20210135842
2021-05-06

Information processing apparatus and method

#30
20210135837
2021-05-06

Multiple data source secure data processing

#31
20210091929
2021-03-25

Distributing a computation output

#32
20210090375
2021-03-25

System and method for information protection

#33
20210083840
2021-03-18

Using cryptographic blinding for efficient use of Montgomery multiplication

#34
20210028934
2021-01-28

Protecting modular inversion operation from external monitoring attacks

#35
20200412523
2020-12-31

Platform neutral data encryption standard (DES) cryptographic operation

#36
20200403785
2020-12-24

System and method for securely exchanging messages

#37
20200382484
2020-12-03

Password streaming

#38
20200351073
2020-11-05

Masking method and system for cryptography

#39
20200295934
2020-09-17

Joint blind key escrow

#40
20200287712
2020-09-10

Method and device to protect a cryptographic exponent

#41
20200274691
2020-08-27

Multiplicative blinding for cryptographic operations

#42
20200266981
2020-08-20

Distributed randomness generation via multi-party computation

#43
20200266970
2020-08-20

Computation device and method

#44
20200258340
2020-08-13

System and method for information protection

#45
20200258339
2020-08-13

System and method for information protection

#46
20200195417
2020-06-18

CRYPTOGRAPHY CIRCUIT PARTICULARLY PROTECTED AGAINST INFORMATION-LEAK OBSERVATION ATTACKS BY THE CIPHERING THEREOF

#47
20200151992
2020-05-14

System and method for information protection

#48
20200143082
2020-05-07

Static data masking

#49
20200120074
2020-04-16

System and method for information protection

#50
20200112424
2020-04-09

Method of RSA signature of decryption protected using assymetric multiplicative splitting

#51
20200110907
2020-04-09

Asymmetrically masked multiplication

#52
20200051361
2020-02-13

System and method for information protection

#53
20200036691
2020-01-30

Secure data exchange

#54
20200036539
2020-01-30

Physical unclonable function for non-volatile memory

#55
20200034573
2020-01-30

Transition from a Boolean masking to an arithmetic masking

#56
20190349187
2019-11-14

Programmable block cipher with masked inputs

#57
20190327075
2019-10-24

Mitigating timing attacks via dynamically triggered time dilation

#58
20190296908
2019-09-26

Side-channel hardened operation

#59
20190268312
2019-08-29

System and method for information protection

#60
20190251233
2019-08-15

Protecting the input/output of modular encoded white-box RSA

#61
20190228165
2019-07-25

Technologies for user-mode persistence of certificates and keys in resource-constrained devices

#62
20190215156
2019-07-11

Chip and method for securely storing secret data

#63
20190197259
2019-06-27

Method for determining an integrity sum, associated computer program and electronic entity

#64
20190173665
2019-06-06

Operation method and security chip

#65
20190116023
2019-04-18

Power side-channel attack resistant advanced encryption standard accelerator processor

#66
20190057225
2019-02-21

Systems and methods for computing data privacy-utility tradeoff

#67
20190050599
2019-02-14

Method and device for anonymizing data stored in a database

#68
20190050204
2019-02-14

Converting a boolean masked value to an arithmetically masked value for cryptographic operations

#69
20190044915
2019-02-07

Systems and processes for executing private programs on untrusted computers

#70
20190044717
2019-02-07

Systems and methods for masking RSA operations

#71
20190042747
2019-02-07

Controlled introduction of uncertainty in system operating parameters

#72
20190042249
2019-02-07

Hardware accelerators and methods for high-performance authenticated encryption

#73
20180359081
2018-12-13

CMAC computation using white-box implementations with external encodings

#74
20180351729
2018-12-06

Multiplicative masking for cryptographic operations

#75
20180323968
2018-11-08

Physically unclonable function circuits and methods of performing key enrollment in physically unclonable function circuits

#76
20180316491
2018-11-01

Fast format-preserving encryption for variable length data

#77
20180315351
2018-11-01

Reduced overhead gate level logic encryption

#78
20180260432
2018-09-13

Identity management

#79
20180248682
2018-08-30

Automatic insertion of masking into an algorithm

#80
20180234233
2018-08-16

Masking storage transfer to protect against attacks

#81
20180211065
2018-07-26

Asymmetrically masked multiplication

#82
20180183576
2018-06-28

Mask S-box, block ciphers algorithm device and corresponding construction process

#83
20180114027
2018-04-26

Attribute determination using secure list matching protocol

#84
20180109382
2018-04-19

Utilizing data reduction in steganographic and cryptographic systems

#85
20180097618
2018-04-05

Linear masking circuits for side-channel immunization of advanced encryption standard hardware

#86
20180083769
2018-03-22

Encryption/description method protected against side-channel attacks

#87
20180069694
2018-03-08

Software protection against differential fault analysis

#88
20180040356
2018-02-08

Physical unclonable function using divided threshold distributions in non-volatile memory

#89
20180039784
2018-02-08

Physical unclonable function for non-volatile memory

#90
20180039581
2018-02-08

Non-volatile memory with security key storage

#91
20180034628
2018-02-01

Protecting polynomial hash functions from external monitoring attacks

#92
20180007019
2018-01-04

Method and apparatus for encrypting and decrypting picture, and device

#93
20170373841
2017-12-28

Key exchange method, key exchange system, key device, terminal device, and program

#94
20170353312
2017-12-07

Authentication of a card by contactless reading

#95
20170288855
2017-10-05

Power side-channel attack resistant advanced encryption standard accelerator processor

#96
20170228562
2017-08-10

Circuit protection system and method

#97
20170195117
2017-07-06

Encryption function and decryption function generating method, encryption and decryption method and related apparatuses

#98
20170116437
2017-04-27

Method for protecting data and data processing device

#99
20170099272
2017-04-06

Hiding a public key exchange in noise

#100
20170063524
2017-03-02

Protection of a rijndael algorithm

#101
20170063523
2017-03-02

DPA protection of a rijndael algorithm

#102
20170033923
2017-02-02

Method for performing a sensitive data encryption with masking, and corresponding encryption apparatus and computer program product

#103
20170033921
2017-02-02

Encoding values by pseudo-random mask

#104
20170026342
2017-01-26

Systems and processes for executing private programs on untrusted computers

#105
20160328543
2016-11-10

Protecting the input/output of modular encoded white-box RSA/ECC

#106
20160301696
2016-10-13

Method and device for protecting access to a message

#107
20160285626
2016-09-29

Imaging systems with data encryption and embedding capabalities

#108
20160277180
2016-09-22

Encryption processing device and method capable of defending differential power analysis attack

#109
20160261405
2016-09-08

Computing key-schedules of the AES for use in white boxes

#110
20160239647
2016-08-18

System and method of interlocking to protect software-mediated program and device behaviours

#111
20160173275
2016-06-16

Cryptographic processing device and cryptographic processing method

#112
20160156476
2016-06-02

Physically unclonable function circuits and methods of performing key enrollment in physically unclonable function circuits

#113
20160142207
2016-05-19

Utilizing data reduction in steganographic and cryptographic systems

#114
20160119136
2016-04-28

Cryptographic device and secret key protection method

#115
20160117510
2016-04-28

Computer security system and method to protect against keystroke logging

#116
20160105276
2016-04-14

ROTATION-BASED CIPHER

#117
20150381351
2015-12-31

Cryptographic processor, method for implementing a cryptographic processor and key generation circuit

#118
20150288515
2015-10-08

Payload in picture encoding

#119
20150278555
2015-10-01

Method for performing an encryption with look-up tables, and corresponding encryption apparatus and computer program product

#120
20150278554
2015-10-01

Encryption device of a substitution-box type, and corresponding encryption method and computer program product

#121
20150270949
2015-09-24

Protecting a white-box implementation against attacks

#122
20150244727
2015-08-27

METHOD FOR AUTHENTICATING A SECURITY ELEMENT BY SUPERIMPOSING N SHARED COLOUR IMAGES, AND SECURITY ELEMENT IMPLEMENTING SAID METHOD

#123
20150213239
2015-07-30

System and method of interlocking to protect software-mediated program and device behaviours

#124
20150188713
2015-07-02

Method to reduce the latency of ECDSA signature generation using precomputation

#125
20150098564
2015-04-09

Masking and unmasking methods and devices

#126
20150082435
2015-03-19

Cyclic redundancy check method with protection from side-channel attacks

#127
20150015304
2015-01-15

Protecting data from decryption from power signature analysis in secure applications

#128
20140281573
2014-09-18

Asymmetrically masked multiplication

#129
20140226812
2014-08-14

Multiple transform utilization and application for secure digital watermarking

#130
20140226811
2014-08-14

Multiple transform utilization and application for secure digital watermarking

#131
20140177830
2014-06-26

Method and system for providing a public key/secret key pair for encrypting and decrypting data

#132
20140161259
2014-06-12

Information processing apparatus, information processing method, and computer readable storage medium

#133
20140112468
2014-04-24

Encryption processing circuit and decryption processing circuit, methods thereof, and programs thereof

#134
20140095883
2014-04-03

Hardening of direct anonymous attestation from side-channel attack

#135
20130346461
2013-12-26

Apparatus for calculating a result of a scalar multiplication

#136
20130329887
2013-12-12

Apparatus and method for providing security service

#137
20130326232
2013-12-05

Device for carrying out a cryptographic method, and operating method for same

#138
20130205379
2013-08-08

Authentication method between client and server, machine-readable storage medium, client and server

#139
20130195266
2013-08-01

Apparatus and method for producing a message authentication code

#140
20130173905
2013-07-04

Transmitting terminal, receiving terminal, ID numbering device, and key transmission method

#141
20130132706
2013-05-23

Table lookup operation on masked data

#142
20130129081
2013-05-23

Low-complexity electronic circuit protected by customized masking

#143
20130063179
2013-03-14

Protecting data from decryption from power signature analysis in secure applications

#144
20130061039
2013-03-07

METHOD AND SYSTEM FOR SECURING DATA UTILIZING RECONFIGURABLE LOGIC

#145
20130028412
2013-01-31

Method of counter-measuring against side-channel attacks

#146
20120250854
2012-10-04

Cryptography circuit protected against observation attacks, in particular of a high order

#147
20120230492
2012-09-13

Encryption device

#148
20120207303
2012-08-16

Utilizing data reduction in steganographic and cryptographic systems

#149
20120179919
2012-07-12

Securing implementation of a cryptographic process having fixed or dynamic keys

#150
20120163585
2012-06-28

Masking addition operation device for prevention of side channel attack

#151
20120159180
2012-06-21

Server-side encrypted pattern matching

#152
20120140920
2012-06-07

RNS-based cryptographic system and method

#153
20120093308
2012-04-19

APPARATUS AND METHOD FOR GENERATING RANDOM DATA

#154
20120087490
2012-04-12

Method And Arrangement For Protecting File-Based Information

#155
20120069998
2012-03-22

Encryption device

#156
20120069997
2012-03-22

Encryption device and decryption device

#157
20120060037
2012-03-08

Protecting against differential power analysis attacks on decryption keys

#158
20120045061
2012-02-23

CRYPTOGRAPHY CIRCUIT PARTICULARLY PROTECTED AGAINST INFORMATION-LEAK OBSERVATION ATTACKS BY THE CIPHERING THEREOF

#159
20120036371
2012-02-09

Protection from cryptoanalytic side-channel attacks

#160
20110302426
2011-12-08

Method for generating a bit vector

#161
20110268266
2011-11-03

Cryptographic processing apparatus and operation method

#162
20110228928
2011-09-22

Selection of a lookup table with data masked with a combination of an additive and multiplicative mask

#163
20110216900
2011-09-08

Methods of encryption and decryption using operand ordering and encryption systems using the same

#164
20110176678
2011-07-21

Masking operation method and device for symmetric key encrypted system

#165
20110170691
2011-07-14

Protection of a ciphering key against unidirectional attacks

#166
20110170685
2011-07-14

COUNTERMEASURE METHOD AND DEVICES FOR ASYMMETRIC ENCRYPTION WITH SIGNATURE SCHEME

#167
20110116624
2011-05-19

System and method for data obfuscation based on discrete logarithm properties

#168
20110085662
2011-04-14

High utilization universal logic array with variable circuit topology and logistic map circuit to realize a variety of logic gates with constant power signatures

#169
20110055591
2011-03-03

Method for cryptographic data processing, particularly using an S box, and related device and software

#170
20110044450
2011-02-24

Method and apparatus for processing F-function in seed encryption system

#171
20110013769
2011-01-20

Encryption apparatus having common key encryption function and embedded apparatus

#172
20100287386
2010-11-11

SECURE INTEGRATED CIRCUIT COMPRISING MEANS FOR DISCLOSING COUNTERPART MASK VALUES

#173
20100272264
2010-10-28

Method for making safe an electronic cryptography assembly with a secret key

#174
20100260333
2010-10-14

Pairing computation device, pairing computation method and recording medium recording pairing computation program

#175
20100220861
2010-09-02

Multiple transform utilization and application for secure digital watermarking

#176
20100195821
2010-08-05

Apparatus for calculating a result of a scalar multiplication

#177
20100177887
2010-07-15

MONTGOMERY-BASED MODULAR EXPONENTIATION SECURED AGAINST HIDDEN CHANNEL ATTACKS

#178
20100169657
2010-07-01

Message authentication code with blind factorization and randomization

#179
20100153734
2010-06-17

Utilizing data reduction in steganographic and cryptographic system

#180
20100150343
2010-06-17

SYSTEM AND METHOD FOR ENCRYPTING DATA BASED ON CYCLIC GROUPS

#181
20100100748
2010-04-22

Arrangement for and method of protecting a data processing device against an attack or analysis

#182
20100086126
2010-04-08

Encryption device using mask value to convert plain text into encrypted text

#183
20100014656
2010-01-21

Cryptographic method comprising secure modular exponentiation against hidden-channel attacks, cryptoprocessor for implementing the method and associated chip card

#184
20090310775
2009-12-17

Using a single instruction multiple data (SIMD) instruction to speed up galois counter mode (GCM) computations

#185
20090138944
2009-05-28

Method and apparatus for camouflaging of data, information and functional transformations

#186
20090116644
2009-05-07

System and method for masking arbitrary Boolean functions

#187
20090112896
2009-04-30

Method and related device for hardware-oriented conversion between arithmetic and boolean random masking

#188
20090034724
2009-02-05

Masking of data in a calculation

#189
20090003598
2009-01-01

Encrypting apparatus for common key cipher

#190
20080292100
2008-11-27

Non-linear data converter, encoder and decoder

#191
20080285745
2008-11-20

Processor for executing an AES-type algorithm

#192
20080260145
2008-10-23

Selection of a lookup table with data masked with a combination of an additive and multiplicative mask

#193
20080253557
2008-10-16

Method and device for carrying out a cryptographic calculation

#194
20080216051
2008-09-04

System and method of interlocking to protect software-mediated program and device behaviours

#195
20080212776
2008-09-04

Encryption processing circuit and encryption processing method

#196
20080208560
2008-08-28

System and method of interlocking to protect software—mediated program and device behaviors

#197
20080181408
2008-07-31

Method and apparatus for secure cryptographic key generation, certification and use

#198
20080152144
2008-06-26

Key protection mechanism

#199
20080022126
2008-01-24

Method to protect a cryptographic assembly by homographic masking

#200
20070286413
2007-12-13

Cryptographic systems for encrypting input data using an address associated with the input data, error detection circuits, and methods of operating the same

#201
20070255941
2007-11-01

Method and system for securing data utilizing reconfigurable logic

#202
20070244951
2007-10-18

Accelerated throughput synchronized word stream cipher, message authenticator and zero-knowledge output random number generator

#203
20070206785
2007-09-06

EMA protection of a calculation by an electronic circuit

#204
20070188355
2007-08-16

Cryptographic logic circuits and method of performing logic operations

#205
20070177720
2007-08-02

Secure data processing method based particularly on a cryptographic algorithm

#206
20070140478
2007-06-21

Encryption apparatus and encryption method

#207
20070075732
2007-04-05

System and method for using dummy cycles to mask operations in a secure microcontroller

#208
20070071235
2007-03-29

Encryption/decryption apparatus

#209
20070064940
2007-03-22

Utilizing data reduction in steganographic and cryptographic systems

#210
20070058800
2007-03-15

Transition between masked representations of a value during cryptographic calculations

#211
20070030031
2007-02-08

Circuit and method for calculating a logic combination of two encrypted input operands

#212
20060159257
2006-07-20

Apparatus and method for detecting a potential attack on a cryptographic calculation

#213
20060140403
2006-06-29

Multiple transform utilization and application for secure digital watermarking

#214
20060125664
2006-06-15

Masking of binary words processed by an integrated circuit

#215
20060120530
2006-06-08

Method of ciphering data transmission in a radio system

#216
20060120527
2006-06-08

Methods, circuits, and computer program products for processing masked data in an advanced encryption system

#217
20060098814
2006-05-11

Method for communicating securely over an insecure communication channel

#218
20060088158
2006-04-27

Method and system for processing a data set

#219
20060056622
2006-03-16

Protection of a DES algorithm

#220
20060045264
2006-03-02

Prevention of side channel attacks against block cipher implementations and other cryptographic systems

#221
20050286720
2005-12-29

Encryption/decryption device and method, encryption device and method, decryption device and method, and transmission/reception apparatus

#222
20050283714
2005-12-22

Method and apparatus for multiplication in Galois field, apparatus for inversion in Galois field and apparatus for AES byte substitution operation

#223
20050276414
2005-12-15

Cryptographic method and apparatus

#224
20050207571
2005-09-22

Data cipher processors

#225
20050184760
2005-08-25

Logic circuit and method thereof

#226
20050044120
2005-02-24

Apparatus and method for generating a code mask

#227
20050027998
2005-02-03

Protection of several identical calculations

#228
20050002528
2005-01-06

RSA cryptographic method and system