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:
Mar. 10, 2026
Filed:
Dec. 16, 2022
International Business Machines Corporation, Armonk, NY (US);
Heng Wang, Beijing, CN;
Ming Zhe Jiang, Beijing, CN;
Jun Long Xiang, Beijing, CN;
Jian Guo Liu, Beijing, CN;
Qi Ye, Shanghai, CN;
Xiao Ling Chen, Beijing, CN;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Data protection using portable data structures includes packaging ciphertext blocks into portable data structures, the ciphertext blocks being produced based on encryption of plaintext blocks according to a block encryption mode that includes dependencies between cryptographic processing of the plaintext blocks, the dependencies including decryption of a first ciphertext block being dependent on a second ciphertext block or decryption processing of the second ciphertext block, the packaging including providing, for each ciphertext block that has a dependency on another ciphertext block, an associated dependency label in the portable data structure in which the ciphertext block is packaged, and distributing the portable data structures to nodes such that portable data structures, of the portable data structures, that package ciphertext blocks between which at least one dependency exists are distributed to different nodes of the nodes.