crypto/internal/ecc.h

16  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 #define ECC_MAX_DIGITS              (512 / 64) /* due to ecrdsa */
45  * ecc_swap_digits() - Copy ndigits from big endian array to native array
48  * @ndigits:  Number of digits to copy
56 		out[i] = get_unaligned_be64(&src[ndigits - 1 - i]);  in ecc_swap_digits()
60  * ecc_is_key_valid() - Validate a given ECDH private key
62  * @curve_id:		id representing the curve to use
64  * @private_key:	private key to be used for the given curve
73  * ecc_gen_privkey() -  Generates an ECC private key.
76  * point G.
77  * @curve_id:		id representing the curve to use
87  * ecc_make_pub_key() - Compute an ECC public key
89  * @curve_id:		id representing the curve to use
101  * crypto_ecdh_shared_secret() - Compute a shared secret
103  * @curve_id:		id representing the curve to use
120  * ecc_is_pubkey_valid_partial() - Partial public key validation
123  * @pk:			public key as a point
125  * Valdiate public key according to SP800-56A section 5.6.2.3.4 ECC Partial
126  * Public-Key Validation Routine.
131  * Return: 0 if validation is successful, -EINVAL if validation is failed.
137  * ecc_is_pubkey_valid_full() - Full public key validation
140  * @pk:			public key as a point
142  * Valdiate public key according to SP800-56A section 5.6.2.3.3 ECC Full
143  * Public-Key Validation Routine.
145  * Return: 0 if validation is successful, -EINVAL if validation is failed.
151  * vli_is_zero() - Determine is vli is zero
153  * @vli:		vli to check.
159  * vli_cmp() - compare left and right vlis
165  * Returns sign of @left - @right, i.e. -1 if @left < @right,
171  * vli_sub() - Subtracts right from left
173  * @result:		where to write result
178  * Note: can modify in-place.
186  * vli_from_be64() - Load vli from big-endian u64 array
195  * vli_from_le64() - Load vli from little-endian u64 array
204  * vli_mod_inv() - Modular inversion
206  * @result:		where to write vli number
207  * @input:		vli value to operate on
215  * vli_mod_mult_slow() - Modular multiplication
217  * @result:		where to write result value
218  * @left:		vli number to multiply with @right
219  * @right:		vli number to multiply with @left
229  * vli_num_bits() - Counts the number of bits required for vli.
231  * @vli:		vli to check.
234  * Return: The number of bits required to represent @vli.
239  * ecc_aloc_point() - Allocate ECC point.
243  * Return: Pointer to the allocated point or NULL if allocation failed.
248  * ecc_free_point() - Free ECC point.
250  * @p:			The point to free.
255  * ecc_point_is_zero() - Check if point is zero.
257  * @p:			Point to check for zero.
259  * Return: true if point is the point at infinity, false otherwise.
261 bool ecc_point_is_zero(const struct ecc_point *point);
264  * ecc_point_mult_shamir() - Add two points multiplied by scalars
266  * @result:		resulting point
267  * @x:			scalar to multiply with @p
268  * @p:			point to multiply with @x
269  * @y:			scalar to multiply with @q
270  * @q:			point to multiply with @y