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US 2022/0029782 A1Published application
Apparatus and method for processing non-polynomial operation on encrypted messages
AssigneeCrypto Lab Inc.
InventorsJung Hee Cheon, Dongwoo Kim, Du Hyeong Kim
Life of this patent
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Abstract
Disclosed is a ciphertext calculation method. The ciphertext calculation method comprises the steps of: receiving a comparative calculation command for a plurality of ciphertexts of the same type; performing a calculation by reflecting the plurality of ciphertexts of the same type on a synthesis function corresponding to the comparative calculation command; and outputting the calculated ciphertexts of the same type.
Claims15
A ciphertext computation method comprising:
- receiving an input of a comparison computation command for a plurality of homomorphic ciphertexts;
- performing computation by reflecting the plurality of homomorphic ciphertexts to a composite function corresponding to the comparison computation command;
- and
- outputting the computed homomorphic ciphertext.
1 more element
A computation apparatus comprising:
- a memory storing at least one instruction;
- and
- a processor configured to execute the at least one instruction,
- wherein the processor, by executing the at least one instruction, is configured to,
- based on an input of a comparison computation command for a plurality of homomorphic ciphertexts being received, perform computation by reflecting the plurality of homomorphic ciphertexts to a composite function corresponding to the comparison computation command, and output the computed homomorphic ciphertext.
2 more elements
Dependencies are inferred from the claim text.