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#!/usr/bin/python
"""
Compare Botan with OpenSSL using their respective benchmark utils
(C) 2017 Jack Lloyd
Botan is released under the Simplified BSD License (see license.txt)
TODO
- Also compare RSA, ECDSA, ECDH
- Output pretty graphs with matplotlib
"""
import logging
import os
import sys
import optparse # pylint: disable=deprecated-module
import subprocess
import re
import json
def setup_logging(options):
if options.verbose:
log_level = logging.DEBUG
elif options.quiet:
log_level = logging.WARNING
else:
log_level = logging.INFO
class LogOnErrorHandler(logging.StreamHandler, object):
def emit(self, record):
super(LogOnErrorHandler, self).emit(record)
if record.levelno >= logging.ERROR:
sys.exit(1)
lh = LogOnErrorHandler(sys.stdout)
lh.setFormatter(logging.Formatter('%(levelname) 7s: %(message)s'))
logging.getLogger().addHandler(lh)
logging.getLogger().setLevel(log_level)
def run_command(cmd):
logging.debug("Running '%s'", ' '.join(cmd))
proc = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True)
stdout, stderr = proc.communicate()
if proc.returncode != 0:
logging.error("Running command %s failed ret %d", ' '.join(cmd), proc.returncode)
return stdout + stderr
def get_openssl_version(openssl):
output = run_command([openssl, 'version'])
openssl_version_re = re.compile(r'OpenSSL ([0-9a-z\.]+) .*')
match = openssl_version_re.match(output)
if match:
return match.group(1)
else:
logging.warning("Unable to parse OpenSSL version output %s", output)
return output
def get_botan_version(botan):
return run_command([botan, 'version']).strip()
EVP_MAP = {
'Blowfish': 'bf-ecb',
'AES-128/GCM': 'aes-128-gcm',
'AES-256/GCM': 'aes-256-gcm',
'ChaCha20': 'chacha20',
'MD5': 'md5',
'SHA-1': 'sha1',
'RIPEMD-160': 'ripemd160',
'SHA-256': 'sha256',
'SHA-384': 'sha384',
'SHA-512': 'sha512'
}
def run_openssl_bench(openssl, algo):
logging.info('Running OpenSSL benchmark for %s', algo)
cmd = [openssl, 'speed', '-mr']
if algo in EVP_MAP:
cmd += ['-evp', EVP_MAP[algo]]
else:
cmd += [algo]
output = run_command(cmd)
buf_header = re.compile(r'\+DT:([a-z0-9-]+):([0-9]+):([0-9]+)$')
res_header = re.compile(r'\+R:([0-9]+):[a-z0-9-]+:([0-9]+\.[0-9]+)$')
ignored = re.compile(r'\+(H|F):.*')
results = []
result = None
for l in output.splitlines():
if ignored.match(l):
continue
if result is None:
match = buf_header.match(l)
if match is None:
logging.error("Unexpected output from OpenSSL %s", l)
result = {'algo': algo, 'buf_size': int(match.group(3))}
else:
match = res_header.match(l)
result['bytes'] = int(match.group(1)) * result['buf_size']
result['runtime'] = float(match.group(2))
result['bps'] = int(result['bytes'] / result['runtime'])
results.append(result)
result = None
return results
def run_botan_bench(botan, runtime, buf_sizes, algo):
runtime = .05
cmd = [botan, 'speed', '--format=json', '--msec=%d' % int(runtime * 1000),
'--buf-size=%s' % (','.join(map(str, buf_sizes))), algo]
output = run_command(cmd)
output = json.loads(output)
return output
class BenchmarkResult(object):
def __init__(self, algo, buf_sizes, openssl_results, botan_results):
self.algo = algo
self.results = {}
def find_result(results, sz):
for r in results:
if 'buf_size' in r and r['buf_size'] == sz:
return r['bps']
raise Exception("Could not find expected result in data")
for buf_size in buf_sizes:
self.results[buf_size] = {
'openssl': find_result(openssl_results, buf_size),
'botan': find_result(botan_results, buf_size)
}
def result_string(self):
out = ""
for (k, v) in self.results.items():
out += "algo %s buf_size % 6d botan % 12d bps openssl % 12d bps adv %.02f\n" % (
self.algo, k, v['botan'], v['openssl'], float(v['botan']) / v['openssl'])
return out
def bench_algo(openssl, botan, algo):
openssl_results = run_openssl_bench(openssl, algo)
buf_sizes = sorted([x['buf_size'] for x in openssl_results])
runtime = sum(x['runtime'] for x in openssl_results) / len(openssl_results)
botan_results = run_botan_bench(botan, runtime, buf_sizes, algo)
return BenchmarkResult(algo, buf_sizes, openssl_results, botan_results)
def main(args=None):
if args is None:
args = sys.argv
parser = optparse.OptionParser()
parser.add_option('--verbose', action='store_true', default=False, help="be noisy")
parser.add_option('--quiet', action='store_true', default=False, help="be very quiet")
parser.add_option('--openssl-cli', metavar='PATH',
default='/usr/bin/openssl',
help='Path to openssl binary (default %default)')
parser.add_option('--botan-cli', metavar='PATH',
default='/usr/bin/botan',
help='Path to botan binary (default %default)')
(options, args) = parser.parse_args(args)
setup_logging(options)
openssl = options.openssl_cli
botan = options.botan_cli
if os.access(openssl, os.X_OK) is False:
logging.error("Unable to access openssl binary at %s", openssl)
if os.access(botan, os.X_OK) is False:
logging.error("Unable to access botan binary at %s", botan)
openssl_version = get_openssl_version(openssl)
botan_version = get_botan_version(botan)
logging.info("Comparing Botan %s with OpenSSL %s", botan_version, openssl_version)
for algo in sorted(EVP_MAP.keys()):
result = bench_algo(openssl, botan, algo)
print(result.result_string())
return 0
if __name__ == '__main__':
sys.exit(main())
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