G06F 2207/7238
Operand masking, i.e. message blinding
Official title: Operand masking, i.e. message blinding, e.g. (A+r)**e mod n; k.(P+R)
G06F2207/7238 (Operand masking, i.e. message blinding) appears on 31 US grants and 38 published applications in this corpus.
Search patents in G06F- Granted patents
- 31
- Published applications
- 38
- Assignees
- 26
- Inventors
- 54
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 3 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 3 | 2 |
| 2010 | 0 | 4 |
| 2011 | 3 | 3 |
| 2012 | 3 | 0 |
| 2013 | 4 | 5 |
| 2014 | 3 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Data-gating based masking19 May 2026US 12,632,610 B2Rambus Inc.
- Transition from a Boolean masking to an arithmetic masking12 Jul 2022US 11,386,239 B2Giesecke+Devrient Mobile Security GmbH
- Execution unit for calculations with masked data30 Nov 2021US 11,190,337 B2Infineon Technologies AG
- Asymmetrically masked multiplication26 Jan 2021US 10,902,156 B2Rambus Inc.
- Multiplier protected against power analysis attacks15 Sep 2020US 10,778,407 B2Nuvoton Technology Corporation
- Method of generating an output binary word from an input binary word, method of performing an arithmetic operation on an input binary word associated to an output binary word, corresponding computer program product and devices27 Aug 2026US 2026/0252309 A1Nagravision Sarl
- Low-cost masking for post-quantum cryptography30 Apr 2026US 2026/0121834 A1Microsoft Technology Licensing, LLC
- Data-gating based masking8 Feb 2024US 2024/0045998 A1Rambus Inc.
- Multiplication13 Apr 2023US 2023/0111089 A1STMicroelectronics (Rousset) SAS
- Asymmetrically masked multiplication9 Apr 2020US 2020/0110907 A1Cryptography Research, Inc.
Most cited
By later US patents
- Secret key cryptographic process for protecting a computer system against attacks by physical analysis30US 6,658,569 B1Bull CP8 · 2003
- Randomized RSA-based cryptographic exponentiation resistant to side channel and fault attacks16US 8,139,763 B2Spansion LLC · 2012
- Countermeasure method in an electric component implementing an elliptical curve type public key cryptography algorithm11US 7,286,666 B1Gemplus · 2007
- Cryptographic method comprising secure modular exponentiation against hidden-channel attacks, cryptoprocessor for implementing the method and associated chip card10US 8,265,266 B2Gemalto SA · 2012
- Protection of a modular exponentiation calculation by addition of a random quantity10US 9,014,368 B2STMicroelectronics (Rousset) SAS · 2015