ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,561,454, issued on Feb. 24, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).
"Protection of data keys used in cryptographic processing" was invented by Louis P. Gomes (Poughkeepsie, N.Y.), Jonathan D. Bradbury (Poughkeepsie, N.Y.) and Reinhard Theodor Buendgen (Tuebingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A set of data keys arranged in a particular order is obtained. The set of data keys includes multiple data keys. The multiple data keys include a protected key. The protected key is prevented from being in a selected position within the particular order. The set of data keys is encrypted as a single encrypted k...