The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2026
Filed:
Sep. 30, 2020
Dfinity Stiftung, Zürich, CH;
Jan Camenisch, Thalwil, CH;
Andrea Cerulli, Zürich, CH;
Manu Drijvers, Zürich, CH;
Jens Groth, Zürich, CH;
DFINITY STIFTUNG, Zürich, CH;
Abstract
Method for redistribution of a (n,t)-secret sharing of a secrets from a set of dealers to a set of receivers. The method comprises performing by each of at least the threshold number t of dealers, —creating a (n',t′)-secret sharing of its respective secret share, —creating a set of ciphertexts comprising for each receiver one encrypted sub-share of the n1 secret sub-shares of its respective secret share and being encrypted with respect to a public encryption key of the respective receiver. The public encryption key is a key of a public-key encryption scheme. —generating a non-interactive zero-knowledge proof that the set of ciphertexts jointly contain a redistribution of its secret share—broadcasting a dealing to the set of receivers, the dealing comprising the set of ciphertexts for the set of receivers and the corresponding non-interactive zero-knowledge proof.