MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202611107122 A) filed by Manish Kumar; Dr Kumar Sekhar Roy; and Dr Shweta Singh on September 06, 2026, for Post-Quantum Threshold-Gated Dicom Transmission With Authenticated Multi-Institution Key Reconstruction.
Inventors include Manish Kumar; Dr Kumar Sekhar Roy; and Dr Shweta Singh.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: A system controls release of a DICOM medical imaging object by cryptographically coupling post-quantum provenance to threshold decryption. A deterministic provenance record is derived from clinical image content and an access policy digest. A fresh content encryption key is divided among authorised receiving nodes, while commitments to the issued shares are aggregated into a share set commitment included in the provenance record and signed within a hardware security module using a stateless hash-based post quantum signature. The signed DICOM object is authenticated-encrypted using the content-encryption key. Each node receives a context-bound authenticated share envelope. Reconstruction accepts only distinct authorised shares whose object, policy, freshness and share-set membership validate. The reconstructed key decrypts the object, after which provenance is re-derived and verified. An integrity gate releases the image to a PACS or clinician workstation only if threshold validation, authenticated decryption and provenance verification all succeed. FIG. 1.
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