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EP4201019
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EP About this file: EP4201019
| EP4201019 - REDISTRIBUTION OF SECRET SHARINGS [Right-click to bookmark this link] | Status | Request for examination was made Status updated on 26.05.2023 Database last updated on 16.11.2024 | |
| Former | The international publication has been made Status updated on 08.04.2022 | ||
| Former | unknown Status updated on 14.10.2020 | Most recent event Tooltip | 24.07.2024 | New entry: Renewal fee paid | Applicant(s) | For all designated states Dfinity Stiftung Genferstrasse 11 8002 Zürich / CH | [2023/26] | Inventor(s) | 01 /
CAMENISCH, Jan 8002 Zürich / CH | 02 /
CERULLI, Andrea 8002 Zürich / CH | 03 /
DRIJVERS, Manu 8002 Zürich / CH | 04 /
GROTH, Jens 8002 Zürich / CH | [2023/26] | Representative(s) | E. Blum & Co. AG Franklinturm Hofwiesenstrasse 349 8050 Zürich / CH | [N/P] |
| Former [2023/26] | E. Blum & Co. AG Patent- und Markenanwälte VSP Vorderberg 11 8044 Zürich / CH | Application number, filing date | 20785950.5 | 30.09.2020 | [2023/26] | WO2020EP77414 | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO2022069035 | Date: | 07.04.2022 | Language: | EN | [2022/14] | Type: | A1 Application with search report | No.: | EP4201019 | Date: | 28.06.2023 | Language: | EN | The application published by WIPO in one of the EPO official languages on 07.04.2022 takes the place of the publication of the European patent application. | [2023/26] | Search report(s) | International search report - published on: | EP | 07.04.2022 | Classification | IPC: | H04L9/08, H04L9/32 | [2023/26] | CPC: |
H04L9/085 (EP,KR,US);
H04L9/0618 (US);
H04L9/0825 (EP);
H04L9/0861 (KR);
H04L9/0891 (EP);
H04L9/30 (KR);
H04L9/3218 (KR,US);
H04L9/3239 (EP);
H04L9/3247 (KR);
| Designated contracting states | AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR [2023/26] | Title | German: | UMVERTEILUNG VON GEHEIMEN SHARINGS | [2023/26] | English: | REDISTRIBUTION OF SECRET SHARINGS | [2023/26] | French: | REDISTRIBUTION DE PARTAGES DE SECRET | [2023/26] | Entry into regional phase | 24.03.2023 | National basic fee paid | 24.03.2023 | Designation fee(s) paid | 24.03.2023 | Examination fee paid | Examination procedure | 24.03.2023 | Examination requested [2023/26] | 24.03.2023 | Date on which the examining division has become responsible | 19.10.2023 | Amendment by applicant (claims and/or description) | Fees paid | Renewal fee | 24.03.2023 | Renewal fee patent year 03 | 22.08.2023 | Renewal fee patent year 04 | 23.07.2024 | Renewal fee patent year 05 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Cited in | International search | [XI] - FABRICE BENHAMOUDA ET AL, "Can a Blockchain Keep a Secret?", vol. 20200424:141036, (20200424), pages 1 - 35, IACR, INTERNATIONAL ASSOCIATION FOR CRYPTOLOGIC RESEARCH, URL: http://eprint.iacr.org/2020/464.pdf, (20200424), XP061035745 [X] 1-4,7,10,18-21 * section 2.2 * * figure 1 * * section 3.2 * * section 4 * [I] 5,6,8,9,11-17 | [AD] - RAN CANETTI ET AL, "A Forward-Secure Public-Key Encryption Scheme", JOURNAL OF CRYPTOLOGY, SPRINGER-VERLAG, NE, (20070206), vol. 20, no. 3, doi:10.1007/S00145-006-0442-5, ISSN 1432-1378, pages 265 - 294, XP019536446 [AD] 1-21 * the whole document * DOI: http://dx.doi.org/10.1007/s00145-006-0442-5 | [A] - MIHIR BELLARE ET AL, "Multirecipient Encryption Schemes: How to Save on Bandwidth and Computation Without Sacrificing Security", IEEE TRANSACTIONS ON INFORMATION THEORY, IEEE PRESS, USA, (20071101), vol. 51, no. 11, ISSN 0018-9448, pages 3927 - 3943, XP011196213 [A] 1-21 * the whole document * | by applicant | - RAN CANETTISHAI HALEVIJONATHAN KATZ, "A Forward-Secure Public-Key Encryption Scheme", J. Cryptol-ogy, (20070000), vol. 20, doi:10.1007/s00145-006-0442-5, pages 265 - 294, XP019536446 DOI: http://dx.doi.org/10.1007/s00145-006-0442-5 | - DE SANTISDI CRESCENZOOS-TROVSKYPERSIANOSAHAI, "Robust Non-interactive Zero Knowledge", Crypto, (20010000), pages 566 - 598 | - GROTHMALLER, "Snarky Signatures: Minimal Signatures of Knowledge from Simulation-Extractable SNARKs", Crypto, (20170000), pages 581 - 612 | - ADI SHAMIR, "How to Share a Secret, Commun", ACM, (19790000), vol. 22, no. 11, doi:10.1145/359168.359176, pages 612 - 613, XP000565227 DOI: http://dx.doi.org/10.1145/359168.359176 | - PAUL FELDMAN, "A Practical Scheme for Non-interactive Verifiable Secret Sharing", FOCS, (19870000), pages 427 - 437 | - DAN BONEHBEN LYNNHOVAV SHACHAM, "Short Signatures from the Weil Pairing", J. Cryptol, (20040000), vol. 17, no. 4, doi:10.1007/s00145-004-0314-9, pages 297 - 319, XP037087813 DOI: http://dx.doi.org/10.1007/s00145-004-0314-9 | - ALEXANDRA BOLDYREVA, "Threshold Signatures, Multisignatures and Blind Signatures Based on the Gap-Diffie-Hellman-Group Signature Scheme", Public Key Cryptography, (20030000), pages 31 - 46 |