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OpenSSL: Implement new crypto API functions

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2017-12-23 17:51:14 +02:00
parent 23ff5d73df
commit eac084cb38
1 changed files with 44 additions and 0 deletions
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44
src/crypto/crypto_openssl.c
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@ -1203,6 +1203,12 @@ int crypto_bignum_to_bin(const struct crypto_bignum *a,
} }
int crypto_bignum_rand(struct crypto_bignum *r, const struct crypto_bignum *m)
{
return BN_rand_range((BIGNUM *) r, (const BIGNUM *) m) == 1 ? 0 : -1;
}
int crypto_bignum_add(const struct crypto_bignum *a, int crypto_bignum_add(const struct crypto_bignum *a,
const struct crypto_bignum *b, const struct crypto_bignum *b,
struct crypto_bignum *c) struct crypto_bignum *c)
@ -1328,6 +1334,15 @@ int crypto_bignum_mulmod(const struct crypto_bignum *a,
} }
int crypto_bignum_rshift(const struct crypto_bignum *a, int n,
struct crypto_bignum *r)
{
/* Note: BN_rshift() does not modify the first argument even though it
* has not been marked const. */
return BN_rshift((BIGNUM *) a, (BIGNUM *) r, n) == 1 ? 0 : -1;
}
int crypto_bignum_cmp(const struct crypto_bignum *a, int crypto_bignum_cmp(const struct crypto_bignum *a,
const struct crypto_bignum *b) const struct crypto_bignum *b)
{ {
@ -1353,6 +1368,12 @@ int crypto_bignum_is_one(const struct crypto_bignum *a)
} }
int crypto_bignum_is_odd(const struct crypto_bignum *a)
{
return BN_is_odd((const BIGNUM *) a);
}
int crypto_bignum_legendre(const struct crypto_bignum *a, int crypto_bignum_legendre(const struct crypto_bignum *a,
const struct crypto_bignum *p) const struct crypto_bignum *p)
{ {
@ -1487,6 +1508,13 @@ void crypto_ec_deinit(struct crypto_ec *e)
} }
int crypto_ec_cofactor(struct crypto_ec *e, struct crypto_bignum *cofactor)
{
return EC_GROUP_get_cofactor(e->group, (BIGNUM *) cofactor,
e->bnctx) == 0 ? -1 : 0;
}
struct crypto_ec_point * crypto_ec_point_init(struct crypto_ec *e) struct crypto_ec_point * crypto_ec_point_init(struct crypto_ec *e)
{ {
if (TEST_FAIL()) if (TEST_FAIL())
@ -1509,6 +1537,12 @@ size_t crypto_ec_prime_len_bits(struct crypto_ec *e)
} }
size_t crypto_ec_order_len(struct crypto_ec *e)
{
return BN_num_bytes(e->order);
}
const struct crypto_bignum * crypto_ec_get_prime(struct crypto_ec *e) const struct crypto_bignum * crypto_ec_get_prime(struct crypto_ec *e)
{ {
return (const struct crypto_bignum *) e->prime; return (const struct crypto_bignum *) e->prime;
@ -1530,6 +1564,16 @@ void crypto_ec_point_deinit(struct crypto_ec_point *p, int clear)
} }
int crypto_ec_point_x(struct crypto_ec *e, const struct crypto_ec_point *p,
struct crypto_bignum *x)
{
return EC_POINT_get_affine_coordinates_GFp(e->group,
(const EC_POINT *) p,
(BIGNUM *) x, NULL,
e->bnctx) == 1 ? 0 : -1;
}
int crypto_ec_point_to_bin(struct crypto_ec *e, int crypto_ec_point_to_bin(struct crypto_ec *e,
const struct crypto_ec_point *point, u8 *x, u8 *y) const struct crypto_ec_point *point, u8 *x, u8 *y)
{ {