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Fully Homomorphic Encryption (FHE)
Encryption
Cryptographic scheme supporting arbitrary computation on ciphertexts with correct decrypted outputs.
Definition
Fully homomorphic encryption is a class of encryption schemes that enable evaluation of arbitrary functions over ciphertexts. The result decrypts to the same value as if the function had been applied to plaintext.
In plain English
Cryptographic scheme supporting arbitrary computation on ciphertexts with correct decrypted outputs.
Why this matters
Why it matters: It enables privacy-preserving computation and analytics, but trade-offs include complexity and performance overhead.
Example
Example: Run encrypted inference or database queries on a server, returning ciphertext outputs only the client can decrypt.