US 12,348,609 B2
Apparatus for processing homomorphic encrypted messages and method thereof
Junbum Shin, Seoul (KR); and Younggi Lee, Seoul (KR)
Assigned to CRYPTO LAB INC., Seoul (KR)
Filed by CRYPTO LAB INC., Seoul (KR)
Filed on Jun. 8, 2023, as Appl. No. 18/331,892.
Claims priority of application No. 10-2022-0076578 (KR), filed on Jun. 23, 2022.
Prior Publication US 2023/0421352 A1, Dec. 28, 2023
Int. Cl. H04L 9/00 (2022.01); G06F 7/483 (2006.01); G06F 7/556 (2006.01); H04L 9/30 (2006.01)
CPC H04L 9/008 (2013.01) 12 Claims
OG exemplary drawing
 
7. An arithmetic unit, comprising:
a memory configured to store numerical data; and
a processor configured to generate a homomorphic encrypted message for the numerical data,
wherein the processor checks exponential data and mantissa data for numerical data, homomorphically encrypts the checked mantissa data, homomorphically encrypts the exponential data, and merges the encrypted mantissa data and the encrypted exponential data to generate the homomorphic encrypted message.