Hardware/Software Adaptive Cryptographic Acceleration for Big Data Processing

Algorithm 1

The strategy for MM algorithm.

Input: N: The number of available CPUs in the system.

Output: : The number of CPUs used for software encryption with AES-NI;

: The number of CPUs responsible for the processes of hardware invocation;

: The processes invoked for software encryption with AES-NI;

: The processes invoked for software encryption with AES-NI;

: The total number of active processes.

/∗ test for the maximum bandwidth with AES-NI in different CPU number, general the process number is

equal to the CPU number ∗/

(1) for CPU number from 1 to N do

(2) calculate /∗ is the maximum bandwidth when the CPU number is i ∗/

(3) end for

/∗ test for the maximum bandwidth with hardware in different CPU number and process number ∗/

(4) for CPU number from 1 to N do

(5)for process number from 1 to 32 do

(6) calculate /∗ is the maximum bandwidth when the CPU number and

process number is i and j ∗/

(7) end for

(8) end for

/∗ Calculate the max performance difference between AES-NI computing and hardware encryption ∗/

(9) let maxdiff ←.

(10) for CPU number from 1 to N do

(11) for process number from 1 to 32 do

(12) ← ().

(13) if (maxdiff <) then

(14) maxdiff←.

(15)←i.

(16)←j.

(17)← (N-i).

(18)←.

(19)←().

(20)end if

(21) end for

(22) end for