METHODS AND SYSTEMS FOR SHARING ENCRYPTED DATA
ES3075470A1Undetermined Publication Date: 2026-08-04UNIVERSIDAD DE MÁLAGA (100 00)
Patent Information
- Application Number
- ES2025030072
- Authority / Receiving Office
- ES · ES
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-01-30
- Publication Date
- 2026-08-04
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Abstract
The invention includes a method and system for encrypting data. The method comprises providing a distributed network comprising network holders (h) and resource-constrained devices (d) that generate private data (m); encrypting the private data (m) to generate encrypted data (c); and sending the encrypted data (c) to an intermediary server where it is sliced into a set of slices (ci). The method further comprises determining a subset of network holders (hj) to whom to send the set of slices (ci); generating, for each pair of resource-constrained device (d) and network holder, a decryption key (rk) based on any combination of the public / private key pairs of the resource-constrained device (d) and the network holder, wherein the decryption keys (rk) are accessible only by the intermediary server; and decrypting each slice (ci) with the respective decryption key (rk).
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Citation Information
Patent Citations
Secret sharing system, data distribution device, distributed data conversion device, secret sharing method, and program
EP2879324A1
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EP2892177A1
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EP4492730A1
Distributed re-encryption apparatus, cryptographic system, distributed re-encryption method, and distributed re-encryption program
US20250023717A1