diff --git a/demos/tv_gen.c b/demos/tv_gen.c
index ab4df0f6..c39983bf 100644
--- a/demos/tv_gen.c
+++ b/demos/tv_gen.c
@@ -726,7 +726,7 @@ void ecc_gen(void)
 {
    FILE         *out;
    unsigned char str[512];
-   void          *k, *order, *modulus;
+   void          *k, *order, *modulus, *a;
    ecc_point    *G, *R;
    int           x;
 
@@ -734,9 +734,9 @@ void ecc_gen(void)
    fprintf(out, "ecc vectors.  These are for kG for k=1,3,9,27,...,3**n until k > order of the curve outputs are <k,x,y> triplets\n\n");
    G = ltc_ecc_new_point();
    R = ltc_ecc_new_point();
-   mp_init(&k);
-   mp_init(&order);
-   mp_init(&modulus);
+   if (mp_init_multi(&k, &order, &modulus, &a, NULL) != CRYPT_OK) {
+      return;
+   }
 
    for (x = 0; ltc_ecc_sets[x].size != 0; x++) {
         fprintf(out, "ECC-%d\n", ltc_ecc_sets[x].size*8);
@@ -744,12 +744,13 @@ void ecc_gen(void)
 
         mp_read_radix(order,   (char *)ltc_ecc_sets[x].order, 16);
         mp_read_radix(modulus, (char *)ltc_ecc_sets[x].prime, 16);
+        mp_read_radix(a,       (char *)ltc_ecc_sets[x].A,     16);
         mp_read_radix(G->x,    (char *)ltc_ecc_sets[x].Gx,    16);
         mp_read_radix(G->y,    (char *)ltc_ecc_sets[x].Gy,    16);
         mp_set(G->z, 1);
 
         while (mp_cmp(k, order) == LTC_MP_LT) {
-            ltc_mp.ecc_ptmul(k, G, R, modulus, 1);
+            ltc_mp.ecc_ptmul(k, G, R, modulus, a, 1);
             mp_tohex(k,    (char*)str); fprintf(out, "%s, ", (char*)str);
             mp_tohex(R->x, (char*)str); fprintf(out, "%s, ", (char*)str);
             mp_tohex(R->y, (char*)str); fprintf(out, "%s\n", (char*)str);
diff --git a/testprof/ecc_test.c b/testprof/ecc_test.c
index d623af3b..c4f6878b 100644
--- a/testprof/ecc_test.c
+++ b/testprof/ecc_test.c
@@ -32,12 +32,12 @@ static int sizes[] = {
 #ifdef LTC_ECC_SHAMIR
 int ecc_test_shamir(void)
 {
-   void *modulus, *mp, *kA, *kB, *rA, *rB;
+   void *modulus, *mp, *kA, *kB, *rA, *rB, *a;
    ecc_point *G, *A, *B, *C1, *C2;
    int x, y, z;
    unsigned char buf[ECC_BUF_SIZE];
 
-   DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, NULL));
+   DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, &a, NULL));
    LTC_ARGCHK((G  = ltc_ecc_new_point()) != NULL);
    LTC_ARGCHK((A  = ltc_ecc_new_point()) != NULL);
    LTC_ARGCHK((B  = ltc_ecc_new_point()) != NULL);
@@ -56,6 +56,7 @@ int ecc_test_shamir(void)
        DO(mp_read_radix(G->y, ltc_ecc_sets[z].Gy, 16));
        DO(mp_set(G->z, 1));
        DO(mp_read_radix(modulus, ltc_ecc_sets[z].prime, 16));
+       DO(mp_read_radix(a,       ltc_ecc_sets[z].A,     16));
        DO(mp_montgomery_setup(modulus, &mp));
 
        /* do 100 random tests */
@@ -67,10 +68,10 @@ int ecc_test_shamir(void)
           DO(mp_read_unsigned_bin(rB, buf, sizes[x]));
 
           /* compute rA * G = A */
-          DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, 1));
+          DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, a, 1));
        
           /* compute rB * G = B */
-          DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, 1));
+          DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, a, 1));
 
           /* pick a random kA, kB */
           LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]);
@@ -79,13 +80,13 @@ int ecc_test_shamir(void)
           DO(mp_read_unsigned_bin(kB, buf, sizes[x]));
 
           /* now, compute kA*A + kB*B = C1 using the older method */
-          DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, 0));
-          DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, 0));
-          DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, mp));
+          DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, a, 0));
+          DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, a, 0));
+          DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, a, mp));
           DO(ltc_mp.ecc_map(C1, modulus, mp));
 
           /* now compute using mul2add */
-          DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus));
+          DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus, a));
 
           /* is they the sames?  */
           if ((mp_cmp(C1->x, C2->x) != LTC_MP_EQ) || (mp_cmp(C1->y, C2->y) != LTC_MP_EQ) || (mp_cmp(C1->z, C2->z) != LTC_MP_EQ)) {