HEFT: Homomorphically Encrypted Fusion of Biometric Templates
Luke Sperling^{$\dagger$}, N. Ratha^{$\ddagger$}, A. Ross^{$\dagger$}, V. Boddeti^{$\dagger$}
^{$\dagger$}Michigan State University, ^{$\ddagger$}University at Buffalo
12th October, 2022
IJCB 2022
Ring Learning with Errors
op | plaintext | ciphertext |
---|---|---|
$x$ | $(x + e_1) \mbox{ mod } t$ | |
$y$ | $(y + e_2) \mbox{ mod } t$ | |
$+$ | $x+y$ | $(x+y + e_3') \mbox{ mod } t$ |
$\times$ | $x\times y$ | $(x\times y + e_4'') \mbox{ mod } t$ |