SG10201910022RA - Ciphertext comparison method using homomorphic encryption and apparatus for performing the same - Google Patents
Ciphertext comparison method using homomorphic encryption and apparatus for performing the sameInfo
- Publication number
- SG10201910022RA SG10201910022RA SG10201910022RA SG10201910022RA SG10201910022RA SG 10201910022R A SG10201910022R A SG 10201910022RA SG 10201910022R A SG10201910022R A SG 10201910022RA SG 10201910022R A SG10201910022R A SG 10201910022RA SG 10201910022R A SG10201910022R A SG 10201910022RA
- Authority
- SG
- Singapore
- Prior art keywords
- same
- comparison method
- homomorphic encryption
- ciphertext comparison
- ciphertext
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/50—Adding; Subtracting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/52—Multiplying; Dividing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180128929A KR102550812B1 (en) | 2018-10-26 | 2018-10-26 | Method for comparing ciphertext using homomorphic encryption and apparatus for executing thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG10201910022RA true SG10201910022RA (en) | 2020-05-28 |
Family
ID=68342616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG10201910022RA SG10201910022RA (en) | 2018-10-26 | 2019-10-25 | Ciphertext comparison method using homomorphic encryption and apparatus for performing the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11277256B2 (en) |
| EP (1) | EP3644544B1 (en) |
| KR (1) | KR102550812B1 (en) |
| SG (1) | SG10201910022RA (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020116807A1 (en) * | 2018-12-07 | 2020-06-11 | 주식회사 크립토랩 | Apparatus and method for performing non-polynomial calculation on cryptogram |
| CN112214777B (en) * | 2020-10-20 | 2021-05-11 | 豪符密码检测技术(成都)有限责任公司 | Data encryption protection and use detection method supporting ciphertext data calculation |
| KR102409958B1 (en) * | 2020-11-10 | 2022-06-20 | 서울대학교산학협력단 | Electronic apparatus, control method thereof and server |
| EP4050471A1 (en) * | 2021-02-26 | 2022-08-31 | Zama SAS | Encrypted scalar multiplication |
| KR20230061028A (en) * | 2021-10-28 | 2023-05-08 | 삼성에스디에스 주식회사 | Apparatus and method for ciphertext comparison capable of preventing side channel attack |
| CN114885038B (en) * | 2022-04-24 | 2023-12-29 | 华控清交信息科技(北京)有限公司 | Encryption protocol conversion method, result acquisition node and privacy calculation node |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8249250B2 (en) | 2009-03-30 | 2012-08-21 | Mitsubishi Electric Research Laboratories, Inc. | Secure similarity verification between homomorphically encrypted signals |
| US10075288B1 (en) * | 2014-02-28 | 2018-09-11 | The Governing Council Of The University Of Toronto | Systems, devices, and processes for homomorphic encryption |
| US10015007B2 (en) * | 2015-11-25 | 2018-07-03 | International Business Machines Corporation | Performing efficient comparison operations on encrypted data |
| US9900147B2 (en) * | 2015-12-18 | 2018-02-20 | Microsoft Technology Licensing, Llc | Homomorphic encryption with optimized homomorphic operations |
| JP6660319B2 (en) | 2017-02-03 | 2020-03-11 | Kddi株式会社 | Classification device, classification method and classification program |
| US20190065974A1 (en) * | 2017-08-30 | 2019-02-28 | Axell Corporation | Inference device, inference system, and inference method |
-
2018
- 2018-10-26 KR KR1020180128929A patent/KR102550812B1/en active IP Right Grant
-
2019
- 2019-10-23 US US16/661,371 patent/US11277256B2/en active Active
- 2019-10-23 EP EP19204790.0A patent/EP3644544B1/en active Active
- 2019-10-25 SG SG10201910022RA patent/SG10201910022RA/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR102550812B1 (en) | 2023-07-03 |
| US11277256B2 (en) | 2022-03-15 |
| EP3644544B1 (en) | 2023-06-07 |
| KR20200047002A (en) | 2020-05-07 |
| EP3644544A1 (en) | 2020-04-29 |
| US20200136798A1 (en) | 2020-04-30 |
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