Merge branch 'master' into frodo-aes

README.md

@@ -42,11 +42,7 @@ _The checking of items on this list is still being developed. Checked items shou
 * [x] Consistent test vectors on 32-bit and 64-bit machines
 * [x] No errors/warnings reported by valgrind
 * [x] No errors/warnings reported by address sanitizer
-* [ ] Only dependencies:
+* [x] Only dependencies: `fips202.c`, `sha2.c`, `aes.c`, `randombytes.c`
-  * [x] `fips202.c`
-  * [x] `sha2.c`
-  * [ ] `aes.c`
-  * [x] `randombytes.c`
 * [x] API functions return `0` on success
 * [x] No dynamic memory allocations
 * [ ] No branching on secret data (dynamically checked using valgrind)

crypto_kem/frodokem1344shake/clean/util.c

@@ -13,7 +13,7 @@
 #define min(x, y) (((x) < (y)) ? (x) : (y))
 
 uint16_t PQCLEAN_FRODOKEM1344SHAKE_CLEAN_LE_TO_UINT16(const uint16_t n) {
-    return (((uint8_t *) &(n))[0] | (((uint8_t *) &(n))[1] << 8));
+    return (((uint8_t *) &n)[0] | (((uint8_t *) &n)[1] << 8));
 }
 
 uint16_t PQCLEAN_FRODOKEM1344SHAKE_CLEAN_UINT16_TO_LE(const uint16_t n) {

crypto_kem/frodokem640shake/clean/util.c

@@ -13,7 +13,7 @@
 #define min(x, y) (((x) < (y)) ? (x) : (y))
 
 uint16_t PQCLEAN_FRODOKEM640SHAKE_CLEAN_LE_TO_UINT16(const uint16_t n) {
-    return (((uint8_t *) &(n))[0] | (((uint8_t *) &(n))[1] << 8));
+    return (((uint8_t *) &n)[0] | (((uint8_t *) &n)[1] << 8));
 }
 
 uint16_t PQCLEAN_FRODOKEM640SHAKE_CLEAN_UINT16_TO_LE(const uint16_t n) {

crypto_kem/frodokem976shake/clean/util.c

@@ -13,7 +13,7 @@
 #define min(x, y) (((x) < (y)) ? (x) : (y))
 
 uint16_t PQCLEAN_FRODOKEM976SHAKE_CLEAN_LE_TO_UINT16(const uint16_t n) {
-    return (((uint8_t *) &(n))[0] | (((uint8_t *) &(n))[1] << 8));
+    return (((uint8_t *) &n)[0] | (((uint8_t *) &n)[1] << 8));
 }
 
 uint16_t PQCLEAN_FRODOKEM976SHAKE_CLEAN_UINT16_TO_LE(const uint16_t n) {

crypto_sign/sphincs-shake256-128f-simple/clean/Makefile

@@ -5,7 +5,7 @@ LIB=libsphincs-shake256-128f-simple_clean.a
 HEADERS = params.h address.h wots.h utils.h fors.h api.h  hash.h thash.h
 OBJECTS =          address.o wots.o utils.o fors.o sign.o hash_shake256.o thash_shake256_simple.o
 
-CFLAGS=-Wall -Wextra -Wpedantic -Werror -std=c99 -I../../../common $(EXTRAFLAGS)
+CFLAGS=-Wall -Wconversion -Wextra -Wpedantic -Werror -std=c99 -I../../../common $(EXTRAFLAGS)
 
 all: $(LIB)
 

crypto_sign/sphincs-shake256-128f-simple/clean/fors.c

@@ -50,7 +50,7 @@ static void message_to_indices(uint32_t *indices, const unsigned char *m) {
     for (i = 0; i < SPX_FORS_TREES; i++) {
         indices[i] = 0;
         for (j = 0; j < SPX_FORS_HEIGHT; j++) {
-            indices[i] ^= ((m[offset >> 3] >> (offset & 0x7)) & 0x1) << j;
+            indices[i] ^= (((uint32_t)m[offset >> 3] >> (offset & 0x7)) & 0x1) << j;
             offset++;
         }
     }

crypto_sign/sphincs-shake256-128f-simple/clean/wots.c

@@ -53,12 +53,13 @@ static void gen_chain(unsigned char *out, const unsigned char *in,
  * Interprets an array of bytes as integers in base w.
  * This only works when log_w is a divisor of 8.
  */
-static void base_w(int *output, const int out_len, const unsigned char *input) {
+static void base_w(unsigned int *output, const size_t out_len,
-    int in = 0;
+                   const unsigned char *input) {
-    int out = 0;
+    size_t in = 0;
+    size_t out = 0;
     unsigned char total = 0;
-    int bits = 0;
+    unsigned int bits = 0;
-    int consumed;
+    size_t consumed;
 
     for (consumed = 0; consumed < out_len; consumed++) {
         if (bits == 0) {
@@ -73,8 +74,9 @@ static void base_w(int *output, const int out_len, const unsigned char *input) {
 }
 
 /* Computes the WOTS+ checksum over a message (in base_w). */
-static void wots_checksum(int *csum_base_w, const int *msg_base_w) {
+static void wots_checksum(unsigned int *csum_base_w,
-    int csum = 0;
+                          const unsigned int *msg_base_w) {
+    unsigned int csum = 0;
     unsigned char csum_bytes[(SPX_WOTS_LEN2 * SPX_WOTS_LOGW + 7) / 8];
     unsigned int i;
 
@@ -92,7 +94,7 @@ static void wots_checksum(int *csum_base_w, const int *msg_base_w) {
 }
 
 /* Takes a message and derives the matching chain lengths. */
-static void chain_lengths(int *lengths, const unsigned char *msg) {
+static void chain_lengths(unsigned int *lengths, const unsigned char *msg) {
     base_w(lengths, SPX_WOTS_LEN1, msg);
     wots_checksum(lengths + SPX_WOTS_LEN1, lengths);
 }
@@ -125,7 +127,7 @@ void PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_wots_sign(
     unsigned char *sig, const unsigned char *msg,
     const unsigned char *sk_seed, const unsigned char *pub_seed,
     uint32_t addr[8]) {
-    int lengths[SPX_WOTS_LEN];
+    unsigned int lengths[SPX_WOTS_LEN];
     uint32_t i;
 
     chain_lengths(lengths, msg);
@@ -146,7 +148,7 @@ void PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_wots_pk_from_sig(
     unsigned char *pk,
     const unsigned char *sig, const unsigned char *msg,
     const unsigned char *pub_seed, uint32_t addr[8]) {
-    int lengths[SPX_WOTS_LEN];
+    unsigned int lengths[SPX_WOTS_LEN];
     uint32_t i;
 
     chain_lengths(lengths, msg);

test/Makefile

@@ -41,7 +41,7 @@ testvectors: $(DEST_DIR)/testvectors_$(SCHEME)_$(IMPLEMENTATION)
 .PHONY: printparams
 printparams: $(DEST_DIR)/printparams_$(SCHEME)_$(IMPLEMENTATION)
 
-$(DEST_DIR)/test_%: common/%.c $(COMMON_FILES)
+$(DEST_DIR)/test_common_%: common/%.c $(COMMON_FILES)
 	mkdir -p $(DEST_DIR)
 	$(CC) $(CFLAGS) $< $(COMMON_FILES) -o $@
 

test/helpers.py

@@ -5,6 +5,8 @@ import unittest
 import shutil
 import sys
 
+import pqclean
+
 
 def run_subprocess(command, working_dir='.', env=None, expected_returncode=0):
     """
@@ -97,3 +99,32 @@ def ensure_available(executable):
                         else "On Windows, make sure to add it to PATH")
                 )
     raise AssertionError("{} not available on CI".format(executable))
+
+
+def permit_test(testname, thing, **args):
+    if 'PQCLEAN_ONLY_TESTS' in os.environ:
+        if not(testname.lower() in os.environ['PQCLEAN_ONLY_TESTS'].lower().split(',')):
+            return False
+    if 'PQCLEAN_SKIP_TESTS' in os.environ:
+        if testname.lower() in os.environ['PQCLEAN_SKIP_TESTS'].lower().split(','):
+            return False
+
+    if isinstance(thing, pqclean.Implementation):
+        scheme = thing.scheme
+    else:
+        scheme = thing
+
+    if 'PQCLEAN_ONLY_TYPES' in os.environ:
+        if not(scheme.type.lower() in os.environ['PQCLEAN_ONLY_TYPES'].lower().split(',')):
+            return False
+    if 'PQCLEAN_SKIP_TYPES' in os.environ:
+        if scheme.type.lower() in os.environ['PQCLEAN_SKIP_TYPES'].lower().split(','):
+            return False
+    if 'PQCLEAN_ONLY_SCHEMES' in os.environ:
+        if not(scheme.name.lower() in os.environ['PQCLEAN_ONLY_SCHEMES'].lower().split(',')):
+            return False
+    if 'PQCLEAN_SKIP_SCHEMES' in os.environ:
+        if scheme.name.lower() in os.environ['PQCLEAN_SKIP_SCHEMES'].lower().split(','):
+            return False
+
+    return True

test/test_api_h.py

@@ -1,12 +1,14 @@
 import os
 import re
 
+import helpers
 import pqclean
 
 
 def test_preprocessor():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('preprocessor', implementation): 
                 yield check_preprocessor, implementation
 
 

test/test_char.py

@@ -17,6 +17,7 @@ def test_char():
         )
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('char', implementation): 
                 yield check_char, implementation
 
 

test/test_common.py

@@ -16,7 +16,7 @@ def test_common():
 
 
 def check_common(primitive):
-    binname = os.path.join('..', 'bin', 'test_'+primitive)
+    binname = os.path.join('..', 'bin', 'test_common_'+primitive)
     helpers.make(binname)
     helpers.run_subprocess([binname])
 

test/test_compile_lib.py

@@ -10,6 +10,7 @@ import helpers
 def test_compile_lib():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('compile_lib', implementation): 
                 yield check_compile_lib, implementation
 
 

test/test_duplicate_consistency.py

@@ -12,6 +12,7 @@ def test_duplicate_consistency():
     helpers.skip_windows()
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('duplicate_consistency', implementation): 
                 if os.path.isfile(os.path.join('duplicate_consistency', '{}_{}.yml'.format(scheme.name, implementation.name))):
                     metafile = os.path.join('duplicate_consistency', '{}_{}.yml'.format(implementation.scheme.name, implementation.name))
                     with open(metafile, encoding='utf-8') as f:

test/test_dynamic_memory.py

@@ -11,6 +11,7 @@ import unittest
 def test_dynamic_memory():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('dynamic_memory', implementation): 
                 # Keep this loop outside, to allow multiple assertions
                 for function in ['malloc', 'free', 'realloc', 'calloc']:
                     yield (check_dynamic_memory, implementation, function)

test/test_format.py

@@ -1,22 +1,24 @@
+import helpers
 import pqclean
-from helpers import run_subprocess, ensure_available
 
 
 def test_formatting():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('format', implementation): 
                 yield check_format, implementation
 
 
 def check_format(implementation: pqclean.Implementation):
-    ensure_available('astyle')
+    helpers.ensure_available('astyle')
     cfiles = implementation.cfiles()
     hfiles = implementation.hfiles()
-    run_subprocess(['astyle',
+    result = helpers.run_subprocess(['astyle',
                     '--dry-run',
                     '--options=../.astylerc',
                     *cfiles,
                     *hfiles])
+    assert(not('Formatted' in result))
 
 
 if __name__ == "__main__":

test/test_functest.py

@@ -14,12 +14,14 @@ import helpers
 def test_functest():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('functest', implementation): 
                 yield check_functest, implementation
 
 
 def test_functest_sanitizers():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('functest_sanitizers', implementation): 
                 yield check_functest_sanitizers, implementation
 
 

test/test_license.py

@@ -5,11 +5,13 @@ implementation of the specified scheme.
 
 import os
 import pqclean
+import helpers
 
 
 def test_license():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('license', implementation): 
                 yield check_license, implementation
 
 

test/test_linter.py

@@ -1,24 +1,29 @@
 import os
 from glob import glob
+import sys
 
 import pqclean
-from helpers import run_subprocess, ensure_available
+import helpers
+
+additional_flags = []
 
 
 def test_clang_tidy():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('linter', implementation):
                 yield check_tidy, implementation
 
 
 def check_tidy(implementation: pqclean.Implementation):
-    ensure_available('clang-tidy')
+    helpers.ensure_available('clang-tidy')
     cfiles = glob(os.path.join(implementation.path(), '*.c'))
     common_files = glob(os.path.join('..', 'common', '*.c'))
-    run_subprocess(['clang-tidy',
+    helpers.run_subprocess(['clang-tidy',
                     '-quiet',
-                    '-header-filter=.*',
+                    '-header-filter=.*'] +
-                    *cfiles,
+                     additional_flags +
+                    [*cfiles,
                     *common_files,
                     '--',
                     '-iquote', os.path.join('..', 'common'),
@@ -27,6 +32,10 @@ def check_tidy(implementation: pqclean.Implementation):
 
 
 if __name__ == "__main__":
+    # allow a user to specify --fix-errors, to immediately fix errors
+    if len(sys.argv) >= 2 and sys.argv[1] == '-fix-errors':
+        additional_flags = ['-fix-errors']
+        sys.argv = sys.argv[0:1] + sys.argv[2:]
     try:
         import nose2
         nose2.main()

test/test_makefile_dependencies.py

@@ -13,6 +13,7 @@ import datetime
 def test_makefile_dependencies():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('makefile_dependencies', implementation):
                 # initial build - want to have *all* files in place at beginning
                 helpers.make('clean', working_dir=implementation.path())
                 helpers.make(working_dir=implementation.path())

test/test_metadata.py

@@ -3,12 +3,14 @@ Verify the metadata specified in the META.yml files.
 """
 
 import copy
+import helpers
 import itertools
 import pqclean
 
 
 def test_metadata():
     for scheme in pqclean.Scheme.all_schemes():
+        if helpers.permit_test('metadata', scheme):
             yield check_metadata, scheme
 
 

test/test_metadata_sizes.py

@@ -8,6 +8,7 @@ import helpers
 def test_metadata_sizes():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('metadata_sizes', implementation):
                 yield check_metadata_sizes, implementation
 
 

test/test_no_symlinks.py

@@ -4,11 +4,13 @@ Checks that no implementation makes use of symbolic links.
 
 import os
 import pqclean
+import helpers
 
 
 def test_no_symlinks():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('no_symlinks', implementation):
                 yield check_no_symlinks, implementation
 
 

test/test_preprocessor.py

@@ -2,12 +2,13 @@ import os
 from glob import glob
 
 import pqclean
-from helpers import run_subprocess, ensure_available
+import helpers
 
 
 def test_preprocessor():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('preprocessor', implementation):
                 yield check_preprocessor, implementation
 
 

test/test_symbol_namespace.py

@@ -12,6 +12,7 @@ import unittest
 def test_symbol_namespace():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('symbol_namespace', implementation):
                 yield check_symbol_namespace, implementation
 
 

test/test_testvectors.py

@@ -12,6 +12,7 @@ import helpers
 def test_testvectors():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('testvectors', implementation):
                 yield check_vectors, implementation
 
 

test/test_valgrind.py

@@ -13,6 +13,7 @@ import helpers
 def test_functest():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
+            if helpers.permit_test('valgrind', implementation):
                 yield check_valgrind, implementation