## OpenJDK / jdk9 / jdk9 / jdk

### view src/jdk.crypto.ec/share/native/libsunec/impl/ecl.h @ 17280:f09a6beb1e23

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8175110: Higher quality ECDSA operations
Reviewed-by: jnimeh, valeriep, vinnie, xuelei

author | apetcher |
---|---|

date | Fri, 12 May 2017 17:30:47 +0100 |

parents | f08705540498 |

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/* * Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* ********************************************************************* * * The Original Code is the elliptic curve math library. * * The Initial Developer of the Original Code is * Sun Microsystems, Inc. * Portions created by the Initial Developer are Copyright (C) 2003 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories * * Last Modified Date from the Original Code: May 2017 *********************************************************************** */ #ifndef _ECL_H #define _ECL_H /* Although this is not an exported header file, code which uses elliptic * curve point operations will need to include it. */ #include "ecl-exp.h" #include "mpi.h" struct ECGroupStr; typedef struct ECGroupStr ECGroup; /* Construct ECGroup from hexadecimal representations of parameters. */ ECGroup *ECGroup_fromHex(const ECCurveParams * params, int kmflag); /* Construct ECGroup from named parameters. */ ECGroup *ECGroup_fromName(const ECCurveName name, int kmflag); /* Free an allocated ECGroup. */ void ECGroup_free(ECGroup *group); /* Construct ECCurveParams from an ECCurveName */ ECCurveParams *EC_GetNamedCurveParams(const ECCurveName name, int kmflag); /* Duplicates an ECCurveParams */ ECCurveParams *ECCurveParams_dup(const ECCurveParams * params, int kmflag); /* Free an allocated ECCurveParams */ void EC_FreeCurveParams(ECCurveParams * params); /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k * P(x, * y). If x, y = NULL, then P is assumed to be the generator (base point) * of the group of points on the elliptic curve. Input and output values * are assumed to be NOT field-encoded. */ mp_err ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px, const mp_int *py, mp_int *qx, mp_int *qy, int timing); /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k1 * G + * k2 * P(x, y), where G is the generator (base point) of the group of * points on the elliptic curve. Input and output values are assumed to * be NOT field-encoded. */ mp_err ECPoints_mul(const ECGroup *group, const mp_int *k1, const mp_int *k2, const mp_int *px, const mp_int *py, mp_int *qx, mp_int *qy, int timing); /* Validates an EC public key as described in Section 5.2.2 of X9.62. * Returns MP_YES if the public key is valid, MP_NO if the public key * is invalid, or an error code if the validation could not be * performed. */ mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const mp_int *py); #endif /* _ECL_H */