added possibility of testing longer payloads

README.md

@@ -94,8 +94,6 @@ In this case, only the implementations named "rhys" and "armsrc_NEC" will be com
 
 After the compilation is finished, you will see the results in the build directory specified in the -b argument. For each compiled implementation, a subdirectory will be present containing the firmware.elf file and the logs of the stdout and stderr of the make command.
 
-The compile_all.py script will also include the test vectors text file for each compiled algorithm from the test_vectors directory - make sure you have the test vectors for every algorithm you want to compile.
-
 ## Running the tests
 
 Once the algorithms you plan to test are compiled, you can start the benchmarks.
@@ -106,7 +104,12 @@ Make sure your Logic Analyzer is capturing. If you plan on using sigrok-mux, sta
 ```
 This will create a UNIX domain socket at `$XDG_RUNTIME_DIR/lwc-logic-socket` which the `LogicMultiplexerTimeMeasurements` class from `test_common.py` will connect to.
 
-Now, you can start the benchmark of an individual build algorithm by calling the `test.py` script of the appropriate template:
+Place a test vector file in the directory of the tested algorithm:
+```bash
+cp test_vectors/romulusn1/LWC_AEAD_KAT_*.txt build/romulus.romulusn1.armsrc_NEC/LWC_AEAD_KAT.txt
+```
+
+Now you can start a benchmark by calling the `test.py` script of the appropriate template:
 ```bash
 PYTHONPATH="$PYTHONPATH:$(pwd)" templates/f1-libopencm3/test.py build/romulus.romulusn1.armsrc_NEC/
 ```

compile_all.py

@@ -83,18 +83,6 @@ def build(algo_dir, template_dir, build_dir):
     return True
 
 
-# Find test vectors in the test_vectors directory
-def find_test_vectors(variant):
-    kat = None
-    test_vectors_dir = os.path.join("test_vectors", variant)
-    for f in os.listdir(test_vectors_dir):
-        if f.startswith("LWC_AEAD_KAT_") and f.endswith(".txt"):
-            if kat is not None:
-                raise Exception("Multiple test vectors?")
-            kat = os.path.join(test_vectors_dir, f)
-    return kat
-
-
 def main(argv):
     include_list = None
 
@@ -169,10 +157,6 @@ def main(argv):
         assert os.path.isdir(d)
         print(d)
 
-        # Test vectors file t
-        t = find_test_vectors(variant)
-        print(t)
-
         # if include_list was provided, skip elements not in the list
         if include_list is not None:
             if n not in include_list:
@@ -186,7 +170,7 @@ def main(argv):
                 st_mtime = max(st_mtime, os.stat(path).st_mtime)
 
         # Put all in a tuple and count
-        files.append((t, d, n, st_mtime))
+        files.append((d, n, st_mtime))
 
     # Uncomment next line for testing, if we only want to do 1
     # files = files[:1]
@@ -198,7 +182,7 @@ def main(argv):
     print()
 
     # Build all found algorithms
-    for t, d, name, st_mtime in files:
+    for d, name, st_mtime in files:
         print()
         print(d)
         try:
@@ -206,8 +190,6 @@ def main(argv):
 
             build(d, template_dir, build_dir)
 
-            shutil.copyfile(t, os.path.join(build_dir, 'LWC_AEAD_KAT.txt'))
-
             mdate_path = os.path.join(build_dir, 'cipher_mtime.txt')
             with open(mdate_path, 'wt') as mdate_file:
                 print(int(st_mtime), file=mdate_file)

process_zip.sh

@@ -50,7 +50,12 @@ function run() {
   for cipher in $TMPDIR/*; do
     if [[ ! -d $cipher ]]; then continue; fi
 
-    CIPHER_SLUG=$(basename $cipher)
+    CIPHER_SLUG=$(basename $cipher);
+    FAMILY="${CIPHER_SLUG%%.*}";
+    REM="${CIPHER_SLUG#*.}";
+    VARIANT="${REM%%.*}";
+    IMPLEMENTATION="${REM#*.}";
+
     CIPHER_TIMESTAMP=$(cat "$cipher/cipher_mtime.txt")
 
     TEST_PATH="$DESTDIR/$CIPHER_SLUG"
@@ -58,7 +63,7 @@ function run() {
     TEST_PATH=$(realpath $TEST_PATH)
 
     mv $cipher/*.log "$TEST_PATH"
-    mv "$cipher/LWC_AEAD_KAT.txt" "$TEST_PATH"
+    cp test_vectors/$VARIANT/LWC_AEAD_KAT_*.txt "$TEST_PATH/LWC_AEAD_KAT.txt" || exit 1
 
     case $TEMPLATE in
       f1-libopencm3) mv $cipher/firmware.{bin,elf} "$TEST_PATH"

templates/bluepill/src/main.ino

@@ -2,8 +2,8 @@
 #include "api.h"
 #include "uartp.h"
 
-#define MAX_BYTES 100
-#define CMDBUF_LEN 72
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
 static uint8_t cmdbuf[CMDBUF_LEN];
 
 #define CRYPTO_BUSY A7

templates/esp32/src/main.ino

@@ -2,8 +2,8 @@
 #include "api.h"
 #include "uartp.h"
 
-#define MAX_BYTES 100
-#define CMDBUF_LEN 72
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
 static uint8_t cmdbuf[CMDBUF_LEN];
 
 #define CRYPTO_BUSY 12

templates/f1-libopencm3/main.c

@@ -13,8 +13,8 @@ uint8_t uart_rbyte(void);
 static void loop(void);
 static void my_assert(bool b);
 
-#define MAX_BYTES 100
-#define CMDBUF_LEN 72
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
 static uint8_t cmdbuf[CMDBUF_LEN];
 
 uint8_t npub[CRYPTO_NPUBBYTES];

templates/f7/Src/test.c

@@ -8,7 +8,9 @@
 #include "uartp.h"
 #include "main.h"
 
-#define MAX_BYTES 100
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
+static uint8_t cmdbuf[CMDBUF_LEN];
 
 uint8_t npub[CRYPTO_NPUBBYTES];
 uint8_t nsec[CRYPTO_NSECBYTES];
@@ -76,15 +78,14 @@ void test_setup() {
 
 
 void test_loop() {
-    static uint8_t buf[256];
-    uint16_t len = uartp_recv(buf, 255);
-    uint8_t action = buf[0];
+    uint16_t len = uartp_recv(cmdbuf, 255);
+    uint8_t action = cmdbuf[0];
     if (len == 0 || len > 255)
         return;
 
     uint16_t l = len - 1;
     uint16_t rl = 0;
-    uint8_t *var = buf+1;
+    uint8_t *var = cmdbuf+1;
     switch (action) {
         case 'm': my_assert(l <= MAX_BYTES);        memcpy(m,    var, l); mlen = l; break;
         case 'c': my_assert(l <= MAX_BYTES);        memcpy(c,    var, l); clen = l; break;
@@ -120,7 +121,7 @@ void test_loop() {
         default:
             my_assert(false);
     }
-    buf[0] = action;
-    memcpy(buf+1, var, rl);
-    uartp_send(buf, rl+1);
+    cmdbuf[0] = action;
+    memcpy(cmdbuf+1, var, rl);
+    uartp_send(cmdbuf, rl+1);
 }

templates/maixduino/src/main.ino

@@ -2,8 +2,8 @@
 #include "api.h"
 #include "uartp.h"
 
-#define MAX_BYTES 100
-#define CMDBUF_LEN 72
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
 static uint8_t cmdbuf[CMDBUF_LEN];
 
 #define CRYPTO_BUSY 12

templates/uno/src/main.ino

@@ -2,8 +2,8 @@
 #include "api.h"
 #include "uartp.h"
 
-#define MAX_BYTES 100
-#define CMDBUF_LEN 72
+#define MAX_BYTES 172
+#define CMDBUF_LEN 200
 static uint8_t cmdbuf[CMDBUF_LEN];
 
 #define CRYPTO_BUSY 12

test_common.py

@@ -156,7 +156,8 @@ def run_nist_aead_test_line(dut, i, m, ad, k, npub, c):
     eprint("  ad = %s" % ad.hex())
     eprint("npub = %s" % npub.hex())
     eprint("   k = %s" % k.hex())
-    eprint("   c = %s" % c.hex())
+    if c is not None:
+        eprint("   c = %s" % c.hex())
 
     dut.send_var(ord('c'), b"\0" * (len(m) + 32))
     dut.send_var(ord('s'), b"")
@@ -169,10 +170,13 @@ def run_nist_aead_test_line(dut, i, m, ad, k, npub, c):
     dut.do_cmd(ord('e'))
     output = dut.obtain_var(ord('C'))
     print("   c = %s" % output.hex())
-    if c != output:
+    if c is not None and c != output:
         raise Exception(
             ("output of encryption (%s) is different from " +
              "expected ciphertext (%s)") % (output.hex(), c.hex()))
+    else:
+        c = output
+        eprint("   c = %s" % c.hex())
 
     dut.send_var(ord('m'), b"\0" * len(c))
     dut.send_var(ord('s'), b"")
@@ -196,23 +200,23 @@ def parse_nist_aead_test_vectors(test_file_path):
         lineprog = re.compile(
             r"^\s*([A-Z]+)\s*=\s*(([0-9a-f])*)\s*$",
             re.IGNORECASE)
-        m = b""
-        ad = b""
-        k = b""
-        npub = b""
-        c = b""
         i = -1
+        m = None
+        ad = None
+        k = None
+        npub = None
+        c = None
         for line in test_file.readlines():
             line = line.strip()
             res = lineprog.match(line)
             if line == "":
                 yield i, m, ad, k, npub, c
                 i = -1
-                m = b""
-                ad = b""
-                k = b""
-                npub = b""
-                c = b""
+                m = None
+                ad = None
+                k = None
+                npub = None
+                c = None
             elif res is not None:
                 if res[1].lower() == 'count':
                     i = int(res[2], 10)
@@ -622,11 +626,32 @@ def identify_test_vector(kat_path):
                 return False
         return True
 
+    def is_ae_128B(kat):
+        if len(kat) != 2:
+            return False
+
+        def genstr(length):
+            return bytes([b % 256 for b in range(length)])
+        expected_k = genstr(len(kat[0][3]))
+        expected_npub = genstr(len(kat[0][4]))
+        expected_i = 0
+        expected_ad = b""
+        for i, m, ad, k, npub, c in kat:
+            expected_m = genstr(0 if i == 1 else 128)
+            expected_i += 1
+            if not (expected_i == i and expected_m == m and
+                    expected_k == k and expected_ad == ad and
+                    expected_npub == npub):
+                return False
+        return True
+
     if is_nist_aead_kat(kat):
         return "NIST AEAD KAT"
     if is_nist_aead_kat_no_ad(kat):
         return "NIST AEAD KAT NO AD"
-    return None
+    if is_ae_128B(kat):
+        return "AE 128B"
+    raise Exception("Unknown test vector")
 
 
 def run_nist_lws_aead_test(dut, vectors_file, build_dir,