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:
Dec. 16, 2025
Filed:
Dec. 08, 2022
The Regents of the University of California, Oakland, CA (US);
Hamid R. Sadjadpour, Santa Cruz, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Techniques for secure remote digital storage or transmission of a ciphertext message include determining a maximum storage capacityof an adversary, determining a security parameter k, wherein 1<<k<<m, and determining a prime number n, such that≤0.3kn. A current public portion of random string α, comprising n random elements, is read from a public site. A secret key z, wherein z has 2k elements, comprising k additive co-primes of n and k multiplicative co-primes of n is shared with a receiving site. An encryption key X, based on the secret key and the current public string, is determined and applied to a plaintext message M of length ≤m to encrypt the plaintext message as Y=M⊕X, thereby creating the ciphertext message Y, which can be placed on a public forum for receiving by a receiving node.