linux-5.10/crypto/ecc.h

14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37  * struct ecc_point - elliptic curve point in affine coordinates
52  * struct ecc_curve - definition of elliptic curve
57  *		pre-calculated value 'mu' is appended to the @p after ndigits.
74  * ecc_is_key_valid() - Validate a given ECDH private key
87  * ecc_gen_privkey() -  Generates an ECC private key.
89  * prime that is the order of the cyclic subgroup generated by the distinguished
93  * @private_key:	buffer for storing the generated private key
95  * Returns 0 if the private key was generated successfully, a negative value
101  * ecc_make_pub_key() - Compute an ECC public key
106  * @public_key:		buffer for storing the generated public key
108  * Returns 0 if the public key was generated successfully, a negative value
115  * crypto_ecdh_shared_secret() - Compute a shared secret
126  * Returns 0 if the shared secret was generated successfully, a negative value
134  * ecc_is_pubkey_valid_partial() - Partial public key validation
139  * Valdiate public key according to SP800-56A section 5.6.2.3.4 ECC Partial
140  * Public-Key Validation Routine.
145  * Return: 0 if validation is successful, -EINVAL if validation is failed.
151  * ecc_is_pubkey_valid_full() - Full public key validation
156  * Valdiate public key according to SP800-56A section 5.6.2.3.3 ECC Full
157  * Public-Key Validation Routine.
159  * Return: 0 if validation is successful, -EINVAL if validation is failed.
165  * vli_is_zero() - Determine is vli is zero
173  * vli_cmp() - compare left and right vlis
179  * Returns sign of @left - @right, i.e. -1 if @left < @right,
185  * vli_sub() - Subtracts right from left
192  * Note: can modify in-place.
200  * vli_from_be64() - Load vli from big-endian u64 array
209  * vli_from_le64() - Load vli from little-endian u64 array
218  * vli_mod_inv() - Modular inversion
229  * vli_mod_mult_slow() - Modular multiplication
243  * ecc_point_mult_shamir() - Add two points multiplied by scalars