lilliput-ae-reference-implementation

commit 52abee4e2d33c1bd7805e8c917e0def94045ebd1
parent fa8bfd4386a86834bf527988c2a05fbf0336f8cb
Author: Kévin Le Gouguec <kevin.legouguec@airbus.com>
Date:   Wed, 21 Nov 2018 17:43:50 +0100

Implémentation de la couche linéaire

Toujours conforme au vecteur de test.

Diffstat:
M
crypto_aead/lilliputaei128v1/ref/cipher.c
 | 
16
++++++++++++++++

1 file changed, 16 insertions(+), 0 deletions(-)
diff --git a/crypto_aead/lilliputaei128v1/ref/cipher.c b/crypto_aead/lilliputaei128v1/ref/cipher.c
@@ -105,6 +105,22 @@ static void _nonlinear_layer(cipher_state *X, const uint8_t RTK[ROUND_TWEAKEY_BY
 static void _linear_layer(cipher_state *X)
 {
     debug_dump_buffer(X->debug, "     Linear Layer :", sizeof(X->X), X->X, 10);
+
+    X->X[15] ^= X->X[1];
+    X->X[15] ^= X->X[2];
+    X->X[15] ^= X->X[3];
+    X->X[15] ^= X->X[4];
+    X->X[15] ^= X->X[5];
+    X->X[15] ^= X->X[6];
+    X->X[15] ^= X->X[7];
+
+    X->X[14] ^= X->X[7];
+    X->X[13] ^= X->X[7];
+    X->X[12] ^= X->X[7];
+    X->X[11] ^= X->X[7];
+    X->X[10] ^= X->X[7];
+    X->X[9]  ^= X->X[7];
+
     debug_dump_buffer(X->debug, "          State linearized :", sizeof(X->X), X->X, 10);
 }