X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=ecdsa%2Fecdsa_sign.c;h=7b3671ea76ffc1ba5ce3ac983865672277dda8a7;hb=226bfa4c5fa7435f253221d76506f8d977bfb91b;hp=e6fe11bd2ec3a052eb3fa16a1c418f80da2879c0;hpb=3a9f9d918fb95474996af535c225a7e187d88372;p=avr-crypto-lib.git

diff --git a/ecdsa/ecdsa_sign.c b/ecdsa/ecdsa_sign.c
index e6fe11b..7b3671e 100644
--- a/ecdsa/ecdsa_sign.c
+++ b/ecdsa/ecdsa_sign.c
@@ -77,8 +77,14 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t *s, const bigint_t *m,
     }
     ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, ctx->curve);
     bigint_inverse(&s->s, k, ctx->curve->p);
+
+    printf_P(PSTR("x:   "));
+    bigint_print_hex(&q.affine.x);
+    putchar('\n');
+
     bigint_mul_u(&t, &q.affine.x, ctx->priv);
     ctx->curve->reduce_p(&t);
+
     printf_P(PSTR("msg:   "));
     bigint_print_hex(m);
     putchar('\n');
@@ -91,6 +97,7 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t *s, const bigint_t *m,
     printf_P(PSTR("t (1): "));
     bigint_print_hex(&t);
     putchar('\n');
+
     bigint_add_u(&t, &t, m);
     ctx->curve->reduce_p(&t);
     printf_P(PSTR("t (2): "));
@@ -151,6 +158,7 @@ uint8_t ecdsa_sign_hash(ecdsa_signature_t *s, const void *hash,
             ((uint8_t*)m_int.wordv)[idx++] = ((uint8_t*)hash)[--hash_len_B];
         }
     }
+    bigint_adjust(&m_int);
     do{
         if(rand_in == NULL){
             size_t i;