Ajout d'un générateur de vecteurs pour FELICS

(Plus précisément, la variante Airbus qui gère les AEAD)

1 files changed, 62 insertions, 0 deletions

diff --git a/test/felics/make-vector.c b/test/felics/make-vector.c
new file mode 100644
index 0000000..1abe088
--- /dev/null
+++ b/test/felics/make-vector.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include "lilliput-ae.h"
+
+
+void parse_arguments(char const* const* argv, size_t* plaintext_len, size_t* auth_len)
+{
+    sscanf(argv[1], "%zu", plaintext_len);
+    sscanf(argv[2], "%zu", auth_len);
+}
+
+void init_buffer(size_t len, uint8_t buf[len])
+{
+    for (size_t i=0; i<len; i++)
+        buf[i] = i;
+}
+
+void dump_buffer(const char* header, size_t len, const uint8_t buf[len])
+{
+    printf("%s = { ", header);
+    for (const uint8_t* b=buf; b<buf+len-1; b++)
+        printf("0x%02x, ", *b);
+    printf("0x%02x };\n", buf[len-1]);
+}
+
+int main(int argc, char const* const* argv)
+{
+    if (argc != 3)
+    {
+        fprintf(stderr, "usage: %s PLAINTEXT-LEN AUTHDATA-LEN\n", argv[0]);
+        return 1;
+    }
+
+    size_t plaintext_len;
+    size_t auth_len;
+    parse_arguments(argv, &plaintext_len, &auth_len);
+
+    uint8_t plaintext[plaintext_len];
+    uint8_t auth[auth_len];
+    uint8_t key[KEY_BYTES];
+    uint8_t nonce[NONCE_BYTES];
+
+    memset(nonce, 0, NONCE_BYTES);
+    init_buffer(plaintext_len, plaintext);
+    init_buffer(auth_len, auth);
+    init_buffer(KEY_BYTES, key);
+
+    uint8_t ciphertext[plaintext_len+TAG_BYTES];
+
+    lilliput_ae_encrypt(
+        plaintext_len, plaintext, auth_len, auth,
+        key, nonce, ciphertext, ciphertext+plaintext_len
+    );
+
+    dump_buffer("const uint8_t expectedPlaintext[MAXTEST_BYTES_M]", plaintext_len, plaintext);
+    dump_buffer("const uint8_t expectedAssociated[MAXTEST_BYTES_AD]", auth_len, auth);
+    dump_buffer("const uint8_t expectedKey[KEY_SIZE]", KEY_BYTES, key);
+    dump_buffer("const uint8_t expectedCiphertext[MAXTEST_BYTES_M+CRYPTO_ABYTES]", plaintext_len+TAG_BYTES, ciphertext);
+}