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Enhance crypto abstract API

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Add more crypto_*() wrappers to enable use of other crypto libraries
than OpenSSL.

Signed-off-by: Sean Parkinson <sean@wolfssl.com>
This commit is contained in:
Sean Parkinson 2017-10-16 15:45:09 +10:00 committed by Jouni Malinen
parent 441e8bfbb4
commit 23ff5d73df
1 changed files with 57 additions and 0 deletions
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57
src/crypto/crypto.h
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@ -417,6 +417,13 @@ int __must_check crypto_public_key_decrypt_pkcs1(
struct crypto_public_key *key, const u8 *crypt, size_t crypt_len,
u8 *plain, size_t *plain_len);
int crypto_dh_init(u8 generator, const u8 *prime, size_t prime_len, u8 *privkey,
u8 *pubkey);
int crypto_dh_derive_secret(u8 generator, const u8 *prime, size_t prime_len,
const u8 *privkey, size_t privkey_len,
const u8 *pubkey, size_t pubkey_len,
u8 *secret, size_t *len);
/**
* crypto_global_init - Initialize crypto wrapper
*
@ -528,6 +535,14 @@ void crypto_bignum_deinit(struct crypto_bignum *n, int clear);
int crypto_bignum_to_bin(const struct crypto_bignum *a,
u8 *buf, size_t buflen, size_t padlen);
/**
* crypto_bignum_rand - Create a random number in range of modulus
* @r: Bignum; set to a random value
* @m: Bignum; modulus
* Returns: 0 on success, -1 on failure
*/
int crypto_bignum_rand(struct crypto_bignum *r, const struct crypto_bignum *m);
/**
* crypto_bignum_add - c = a + b
* @a: Bignum
@ -609,6 +624,16 @@ int crypto_bignum_mulmod(const struct crypto_bignum *a,
const struct crypto_bignum *c,
struct crypto_bignum *d);
/**
* crypto_bignum_rshift - r = a >> n
* @a: Bignum
* @n: Number of bits
* @r: Bignum; used to store the result of a >> n
* Returns: 0 on success, -1 on failure
*/
int crypto_bignum_rshift(const struct crypto_bignum *a, int n,
struct crypto_bignum *r);
/**
* crypto_bignum_cmp - Compare two bignums
* @a: Bignum
@ -639,6 +664,13 @@ int crypto_bignum_is_zero(const struct crypto_bignum *a);
*/
int crypto_bignum_is_one(const struct crypto_bignum *a);
/**
* crypto_bignum_is_odd - Is the given bignum odd
* @a: Bignum
* Returns: 1 if @a is odd or 0 if not
*/
int crypto_bignum_is_odd(const struct crypto_bignum *a);
/**
* crypto_bignum_legendre - Compute the Legendre symbol (a/p)
* @a: Bignum
@ -670,6 +702,14 @@ struct crypto_ec * crypto_ec_init(int group);
*/
void crypto_ec_deinit(struct crypto_ec *e);
/**
* crypto_ec_cofactor - Set the cofactor into the big number
* @e: EC context from crypto_ec_init()
* @cofactor: Cofactor of curve.
* Returns: 0 on success, -1 on failure
*/
int crypto_ec_cofactor(struct crypto_ec *e, struct crypto_bignum *cofactor);
/**
* crypto_ec_prime_len - Get length of the prime in octets
* @e: EC context from crypto_ec_init()
@ -684,6 +724,13 @@ size_t crypto_ec_prime_len(struct crypto_ec *e);
*/
size_t crypto_ec_prime_len_bits(struct crypto_ec *e);
/**
* crypto_ec_order_len - Get length of the order in octets
* @e: EC context from crypto_ec_init()
* Returns: Length of the order defining the group
*/
size_t crypto_ec_order_len(struct crypto_ec *e);
/**
* crypto_ec_get_prime - Get prime defining an EC group
* @e: EC context from crypto_ec_init()
@ -720,6 +767,16 @@ struct crypto_ec_point * crypto_ec_point_init(struct crypto_ec *e);
*/
void crypto_ec_point_deinit(struct crypto_ec_point *p, int clear);
/**
* crypto_ec_point_x - Copies the x-ordinate point into big number
* @e: EC context from crypto_ec_init()
* @p: EC point data
* @x: Big number to set to the copy of x-ordinate
* Returns: 0 on success, -1 on failure
*/
int crypto_ec_point_x(struct crypto_ec *e, const struct crypto_ec_point *p,
struct crypto_bignum *x);
/**
* crypto_ec_point_to_bin - Write EC point value as binary data
* @e: EC context from crypto_ec_init()