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Commit 29172747 by Enrico Pozzobon
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test vectors tested

parent 0d6d46d3
Inline Side-by-side
Showing with 108 additions and 22 deletions
compile_all.py
......@@ -2,11 +2,14 @@
import os
import sys
import stat
import shutil
import random
import subprocess
def build(algo_dir, template_dir="templates/linux"):
# create a new directory for the build
build_dir = None
while build_dir is None:
r = "%09d" % random.randint(0, 999999999)
......@@ -14,12 +17,15 @@ def build(algo_dir, template_dir="templates/linux"):
if not os.path.isdir(d):
build_dir = d
# copy all the files from the submitted algorithm into the build directory
shutil.copytree(algo_dir, build_dir)
# remove the test vectors generator if it is there
c = os.path.join(build_dir, "genkat_aead.c")
if os.path.exists(c):
os.remove(c)
# find all c and h files, since they will be added to the makefile
hfiles = []
cfiles = []
for r, d, f in os.walk(build_dir):
......@@ -29,6 +35,7 @@ def build(algo_dir, template_dir="templates/linux"):
elif file.endswith(".h"):
hfiles.append(file)
# copy all the files from the template directory into the build directory
for f in os.listdir(template_dir):
dst = os.path.join(build_dir, f)
src = os.path.join(template_dir, f)
......@@ -39,19 +46,20 @@ def build(algo_dir, template_dir="templates/linux"):
else:
raise Exception("I don't know what %s is" % src)
# prepare the environmental variables for the makefile
env = os.environ
env['SRC_FILES'] = ' '.join(cfiles)
env['HDR_FILES'] = ' '.join(hfiles)
# enter the directory and execute the makefile
wd = os.getcwd()
try:
os.chdir(build_dir)
try:
if os.path.isfile('./configure'):
p = subprocess.Popen(["./configure"])
p.wait()
assert p.returncode == 0
pargs = ['make']
p = subprocess.Popen(['make'])
p.wait()
assert p.returncode == 0
......@@ -59,11 +67,14 @@ def build(algo_dir, template_dir="templates/linux"):
finally:
os.chdir(wd)
# if execution arrives here, the build was successful
return build_dir
# Find test vectors in directory or one of the parent directories
def find_test_vectors(d):
kat = None
while kat is None:
while True:
if d == '':
raise Exception("Test vector not found")
for f in os.listdir(d):
......@@ -71,10 +82,14 @@ def find_test_vectors(d):
if kat is not None:
raise Exception("Multiple test vectors?")
kat = f
if kat is None:
d = os.path.split(d)[0]
else:
break
kat = os.path.join(d, kat)
return kat
def main(argv):
submissions_dir = "all-lwc-submission-files"
template_dir = "templates/linux"
......@@ -83,7 +98,7 @@ def main(argv):
print("Using template %s" % template_dir)
subs = os.listdir(submissions_dir)
# get all the submissions by looking for files named "encrypt.c"
# get all the submissions by looking for files named "api.h"
files = []
for submission in subs:
implementations_dir = os.path.join(submissions_dir, submission, "Implementations", "crypto_aead")
......@@ -108,7 +123,7 @@ def main(argv):
print(d)
t = find_test_vectors(d)
print(t)
files.append(d)
files.append((t, d))
c += 1
if c == 0:
......@@ -119,15 +134,24 @@ def main(argv):
# For testing, we only do the first
files = files[:1]
# Clear the build directory as it is a leftover from the previous execution
if os.path.isdir('build'):
shutil.rmtree('build')
os.mkdir('build')
print()
for d in files:
# Write a script that executes all the tests one after the other
test_script_path = os.path.join("build", "test_all.sh")
with open(test_script_path, 'w') as test_script:
test_script.write("#!/bin/sh\n")
for t, d in files:
print()
print(d)
b = build(d)
test_script.write("./test.py %s %s\n" % (t, os.path.join(b, 'test')))
st = os.stat(test_script_path)
os.chmod(test_script_path, st.st_mode | stat.S_IEXEC)
if __name__ == "__main__":
......
templates/linux/main.c
......@@ -71,6 +71,11 @@ static void write_variable(unsigned char *target, unsigned long long len) {
fprintf(stderr, "ERROR: didn't write length\r\n");
exit(1);
}
if (len == 0) {
return;
}
if (1 != fwrite(target, olen, 1, stdout)) {
fprintf(stderr, "ERROR: didn't write %llu bytes of data\r\n", len);
exit(1);
......@@ -78,11 +83,6 @@ static void write_variable(unsigned char *target, unsigned long long len) {
}
static bool is_ready() {
return !(k == NULL || m == NULL || c == NULL || ad == NULL);
}
int main() {
int res;
int8_t action;
......@@ -111,7 +111,8 @@ int main() {
case 'e':
if (!is_ready()) {
if (k == NULL || c == NULL) {
fprintf(stderr, c == NULL ? "Missing ciphertext buffer\r\n" : "Missing key\r\n");
return 3;
}
fprintf(stderr, "mlen = %llu\r\n", mlen);
......@@ -132,10 +133,11 @@ int main() {
break;
case 'd':
if (!is_ready()) {
if (m == NULL || k == NULL) {
fprintf(stderr, m == NULL ? "Missing message buffer\r\n" : "Missing key\r\n");
return 3;
}
fprintf(stderr, "Starting decryption\r\n");
fprintf(stderr, "starting decryption\r\n");
res = crypto_aead_decrypt(m, &mlen,
nsec, c, clen, ad, adlen, npub, k);
fprintf(stderr, "decryption finished %d\r\n", res);
......
test.py
#!/usr/bin/env python3
import re
import os
import sys
import struct
......@@ -9,7 +10,11 @@ from subprocess import Popen, PIPE
def main(argv):
p = Popen(argv[1:], bufsize=0, stdin=PIPE, stdout=PIPE)
if len(argv) < 3:
print("Usage: test.py LWC_AEAD_KAT.txt program [arguments]")
test_file = open(argv[1], 'r')
p = Popen(argv[2:], bufsize=0, stdin=PIPE, stdout=PIPE)
def write(data):
l = p.stdin.write(data)
......@@ -35,16 +40,71 @@ def main(argv):
if read(14) != b"Hello, World!\n":
raise Exception("Unexpected output")
submit('c', b"\0" * 32)
submit('m', bytes.fromhex("000102030405060708090A0B0C0D0E0F"))
submit('a', bytes.fromhex("000102030405060708090A0B0C0D0E0F"))
submit('k', bytes.fromhex("000102030405060708090A0B0C0D0E0F"))
submit('p', bytes.fromhex("000102030405060708090A0B0C0D0E0F"))
m = b""
ad = b""
k = b""
npub = b""
i = 0
lineprog = re.compile(r"^\s*([A-Z]+)\s*=\s*(([0-9a-f])*)\s*$", re.IGNORECASE)
for line in test_file.readlines():
line = line.strip()
res = lineprog.match(line)
if line == "":
print()
print("Count = %d" % i)
print(" m = %s" % m.hex())
print(" ad = %s" % ad.hex())
print("npub = %s" % npub.hex())
print(" k = %s" % k.hex())
print(" c = %s" % c.hex())
submit('c', b"\0" * (len(m) + 32))
submit('s', b"")
submit('m', m)
submit('a', ad)
submit('k', k)
submit('p', npub)
write(b'e')
write(b'C')
data = obtain()
print(data.hex())
output = obtain()
print(" c = %s" % output.hex())
if c != output:
raise Exception("output of encryption is different from expected ciphertext")
submit('m', b"\0" * len(c))
submit('s', b"")
submit('c', c)
submit('a', ad)
submit('k', k)
submit('p', npub)
write(b'd')
write(b'M')
output = obtain()
print(" m = %s" % output.hex())
if m != output:
raise Exception("output of encryption is different from expected ciphertext")
elif res is not None:
if res[1].lower() == 'count':
i = int(res[2], 10)
elif res[1].lower() == 'key':
k = bytes.fromhex(res[2])
elif res[1].lower() == 'nonce':
npub = bytes.fromhex(res[2])
elif res[1].lower() == 'pt':
m = bytes.fromhex(res[2])
elif res[1].lower() == 'ad':
ad = bytes.fromhex(res[2])
elif res[1].lower() == 'ct':
c = bytes.fromhex(res[2])
else:
print("ERROR: unparsed line in test vectors file: '%s'" % res)
else:
print("ERROR: unparsed line in test vectors file: '%s'" % line)
if __name__ == "__main__":
......
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