The Tor Browser: security/nss/lib/freebl/ecl/ecl.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 /* Although this is not an exported header file, code which uses elliptic

     6  * curve point operations will need to include it. */

     8 #ifndef __ecl_h_

     9 #define __ecl_h_

    11 #include "ecl-exp.h"

    12 #include "mpi.h"

    14 struct ECGroupStr;

    15 typedef struct ECGroupStr ECGroup;

    17 /* Construct ECGroup from hexadecimal representations of parameters. */

    18 ECGroup *ECGroup_fromHex(const ECCurveParams * params);

    20 /* Construct ECGroup from named parameters. */

    21 ECGroup *ECGroup_fromName(const ECCurveName name);

    23 /* Free an allocated ECGroup. */

    24 void ECGroup_free(ECGroup *group);

    26 /* Construct ECCurveParams from an ECCurveName */

    27 ECCurveParams *EC_GetNamedCurveParams(const ECCurveName name);

    29 /* Duplicates an ECCurveParams */

    30 ECCurveParams *ECCurveParams_dup(const ECCurveParams * params);

    32 /* Free an allocated ECCurveParams */

    33 void EC_FreeCurveParams(ECCurveParams * params);

    35 /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k * P(x,

    36  * y).  If x, y = NULL, then P is assumed to be the generator (base point)

    37  * of the group of points on the elliptic curve. Input and output values

    38  * are assumed to be NOT field-encoded. */

    39 mp_err ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px,

    40 				   const mp_int *py, mp_int *qx, mp_int *qy);

    42 /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k1 * G +

    43  * k2 * P(x, y), where G is the generator (base point) of the group of

    44  * points on the elliptic curve. Input and output values are assumed to

    45  * be NOT field-encoded. */

    46 mp_err ECPoints_mul(const ECGroup *group, const mp_int *k1,

    47 					const mp_int *k2, const mp_int *px, const mp_int *py,

    48 					mp_int *qx, mp_int *qy);

    50 /* Validates an EC public key as described in Section 5.2.2 of X9.62.

    51  * Returns MP_YES if the public key is valid, MP_NO if the public key

    52  * is invalid, or an error code if the validation could not be

    53  * performed. */

    54 mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const

    55 					mp_int *py);

    57 #endif							/* __ecl_h_ */

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