Files
aegis-python/pyaegis/benchmark.py
T
2025-11-09 08:59:53 -06:00

90 lines
2.5 KiB
Python

#!/usr/bin/env python3
"""
Python benchmark matching src/test/benchmark.zig for all supported Aegis algorithms.
It performs two benchmarks with the same parameters as the Zig version:
- AEGIS encrypt (attached tag, maclen = MACBYTES)
- AEGIS MAC (clone state pattern)
Output format and throughput units mirror the Zig benchmark (Mb/s).
"""
import secrets
import time
from pyaegis import aegis128l, aegis128x2, aegis128x4, aegis256, aegis256x2, aegis256x4
MSG_LEN = 16384000 # 16 000 KiB
ITERATIONS = 100
def bench_encrypt(ciph) -> None:
key = ciph.random_key()
nonce = ciph.random_nonce()
# Single buffer, as in Zig: c_out == m buffer, with tag appended
maclen = ciph.MACBYTES
buf = bytearray(MSG_LEN + maclen)
# Initialize buffer with random data
buf[:] = secrets.token_bytes(len(buf))
mview = memoryview(buf)[:MSG_LEN]
t0 = time.perf_counter()
for _ in range(ITERATIONS):
ciph.encrypt(key, nonce, mview, None, maclen=maclen, into=buf)
t1 = time.perf_counter()
# Prevent any unrealistic optimization assumptions
_ = buf[0]
bits = MSG_LEN * ITERATIONS * 8
elapsed_s = t1 - t0
throughput_mbps = (
(bits / (elapsed_s * 1_000_000)) if elapsed_s > 0 else float("inf")
)
print(f"{ciph.NAME}\t{throughput_mbps:10.2f} Mb/s")
def bench_mac(ciph) -> None:
key = ciph.random_key()
nonce = ciph.random_nonce()
buf = bytearray(MSG_LEN)
buf[:] = secrets.token_bytes(len(buf))
mac_out = bytearray(ciph.MACBYTES_LONG)
t0 = time.perf_counter()
for _ in range(ITERATIONS):
ciph.mac(key, nonce, buf, maclen=ciph.MACBYTES_LONG, into=mac_out)
t1 = time.perf_counter()
_ = mac_out[0]
bits = MSG_LEN * ITERATIONS * 8
elapsed_s = t1 - t0
throughput_mbps = (
(bits / (elapsed_s * 1_000_000)) if elapsed_s > 0 else float("inf")
)
print(f"{ciph.NAME} MAC\t{throughput_mbps:10.2f} Mb/s")
if __name__ == "__main__":
# aegis_init() is called in the loader at import time already
# Run encrypt benchmarks in order: 256, 256x2, 256x4, 128l, 128x2, 128x4
bench_encrypt(aegis256)
bench_encrypt(aegis256x2)
bench_encrypt(aegis256x4)
bench_encrypt(aegis128l)
bench_encrypt(aegis128x2)
bench_encrypt(aegis128x4)
# Run MAC benchmarks in order: 128l, 128x2, 128x4, 256, 256x2, 256x4
bench_mac(aegis128l)
bench_mac(aegis128x2)
bench_mac(aegis128x4)
bench_mac(aegis256)
bench_mac(aegis256x2)
bench_mac(aegis256x4)