The invention discloses an anti-
quantum block cipher coprocessor operation method for a
computer monitoring system, and the method comprises the following steps: S1, loading data to generate a random number and a secret key, and splicing the random number and the secret key with a preset
initialization vector to generate an input state; s2, receiving the associated parameters and the
plaintext, and performing preprocessing to generate grouping
mask shares; s3, performing parallel
encryption on the grouped
mask shares based on an input state to generate a plurality of
mask ciphertexts and mask
authentication tags; and S4, performing
linear reconstruction on the mask
ciphertext to finally run to obtain a complete
ciphertext, decomposing
plaintext data into a plurality of mask shares for
parallel processing, effectively diluting
data structure features, and fundamentally
cutting off a way of acquiring key information by an attacker through
power consumption analysis. Compared with the prior art, the
parallel computing advantage of reconfigurable hardware is fully utilized, efficient execution of cryptographic operation is achieved, the whole
data processing process is completed in the register, and the influence of memory access
delay on
system performance is remarkably reduced.