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pqcrypto/test/check_tvectors.py
2019-02-13 22:25:34 -05:00

46 lines
1.4 KiB
Python

import yaml
import sys
import os
import subprocess
import hashlib
"""
For a given SCHEME, this script verifies that the hash of the testvectors
produced on this platform matches the one provided in the META file.
"""
if len(sys.argv) != 2:
print("Provide a scheme name (e.g. crypto_kem/kyber768) as argv[1]")
exit(1)
SCHEME = sys.argv[1]
SCHEMEFULL = SCHEME.replace('/', '_') # e.g. crypto_kem_kyber768
SCHEMESHORT = SCHEME.split('/')[1].upper()
def get_hash(scheme):
with open("{}/META.yml".format(scheme), 'r', encoding='utf-8') as stream:
meta = yaml.load(stream)
return meta['testvectors-sha256']
expectedTestvectorsHash = get_hash(SCHEME)
subprocess.run(["make", "testvectors", "SCHEME={}".format(SCHEME)])
implementations = [
x for x in os.listdir('bin')
if 'testvectors' in x and SCHEMEFULL in x and '.dSYM' not in x
]
for impl in implementations:
testvectors = subprocess.run(["bin/{}".format(impl)],
stdout=subprocess.PIPE)
testvectorsHash = hashlib.sha256(testvectors.stdout).hexdigest()
if testvectorsHash.lower() != expectedTestvectorsHash.lower():
print("testvectors of {} should be {}, but is {}"
.format(SCHEME, expectedTestvectorsHash, testvectorsHash))
sys.exit(1)
else:
print("testvectors of {} matched expected hash".format(SCHEME))