From 35733aaf5f384f26a3a736f2ab54f638646bc086 Mon Sep 17 00:00:00 2001 From: Rob Austein Date: Wed, 17 Jun 2015 16:58:06 -0400 Subject: Debug RSA key generation. --- rsa.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'rsa.c') diff --git a/rsa.c b/rsa.c index ad5cb16..9a42563 100644 --- a/rsa.c +++ b/rsa.c @@ -392,8 +392,8 @@ hal_error_t hal_rsa_key_gen(hal_rsa_key_t *key_, * Calculate remaining key components. */ - fp_sub_d(&key->p, 1, &p_1); - fp_sub_d(&key->q, 1, &q_1); + fp_init(&p_1); fp_sub_d(&key->p, 1, &p_1); + fp_init(&q_1); fp_sub_d(&key->q, 1, &q_1); fp_mul(&key->p, &key->q, &key->n); /* n = p * q */ fp_lcm(&p_1, &q_1, &key->d); FP_CHECK(fp_invmod(&key->e, &key->d, &key->d)); /* d = (1/e) % lcm(p-1, q-1) */ @@ -401,9 +401,13 @@ hal_error_t hal_rsa_key_gen(hal_rsa_key_t *key_, FP_CHECK(fp_mod(&key->d, &q_1, &key->dQ)); /* dQ = d % (q-1) */ FP_CHECK(fp_invmod(&key->q, &key->p, &key->u)); /* u = (1/q) % p */ + key_->key = key; + /* Fall through to cleanup */ fail: + if (err != HAL_OK) + memset(keybuf, 0, keybuf_len); fp_zero(&p_1); fp_zero(&q_1); return err; -- cgit v1.2.3