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Measure time during AES run

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This commit is contained in:
Manuel Thalmann 2023-12-12 19:17:45 +01:00
parent d85966bb6d
commit bbfbbc4908
1 changed files with 13 additions and 4 deletions
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17
aes-32bit/aes.cpp
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@ -1,3 +1,4 @@
#include <chrono>
#include <cstdio> #include <cstdio>
#include <iostream> #include <iostream>
#include <stdint.h> #include <stdint.h>
@ -195,9 +196,17 @@ int main(int argc, char* argv[])
cycles = std::atoi(argv[1]); cycles = std::atoi(argv[1]);
} }
for (int i = 0; i < cycles; i++) { const auto start{std::chrono::steady_clock::now()};
uint8_t key[16] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }; {
uint8_t in[16] = { 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89}; for (int i = 0; i < cycles; i++) {
aes(in, in, key); uint8_t key[16] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };
uint8_t in[16] = { 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89};
aes(in, in, key);
}
} }
const auto end{std::chrono::steady_clock::now()};
const std::chrono::duration<double> elapsed_seconds{end - start};
std::cout << "AES (" << cycles << " runs)\nElapsed time: ";
std::cout << elapsed_seconds.count() << "s\n"; // Before C++20
} }