ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,053, issued on Sept. 30, was assigned to Micro Focus LLC (Santa Clara, Calif.).
"Efficient length preserving encryption of large plaintexts" was invented by Richard Todd Minner (Santa Clara, Calif.) and Thomas J. Wu (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A plaintext is received. For example, a plaintext may be a text record that is to be encrypted and then stored in a database. A determination is made to see if a size of the plaintext is above a threshold. The threshold is based on an efficiency of a Format Preserving Encryption (FPE) algorithm. In response to the size of the plaintext being above the threshold: the pla...