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Diffstat (limited to 'security/nss/lib/freebl/GF2m_ecl.h')
-rw-r--r-- | security/nss/lib/freebl/GF2m_ecl.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/GF2m_ecl.h b/security/nss/lib/freebl/GF2m_ecl.h new file mode 100644 index 000000000..e562c2fc0 --- /dev/null +++ b/security/nss/lib/freebl/GF2m_ecl.h @@ -0,0 +1,96 @@ +/* + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial + * field curves. + * + * The Initial Developer of the Original Code is Sun Microsystems, Inc. + * Portions created by Sun Microsystems, Inc. are Copyright (C) 2003 + * Sun Microsystems, Inc. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila <douglas@stebila.ca> + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + */ + +#ifndef __gf2m_ecl_h_ +#define __gf2m_ecl_h_ +#ifdef NSS_ENABLE_ECC + +#include "secmpi.h" + +/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */ +mp_err GF2m_ec_pt_is_inf_aff(const mp_int *px, const mp_int *py); + +/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */ +mp_err GF2m_ec_pt_set_inf_aff(mp_int *px, mp_int *py); + +/* Computes R = P + Q where R is (rx, ry), P is (px, py) and Q is (qx, qy). + * Uses affine coordinates. + */ +mp_err GF2m_ec_pt_add_aff(const mp_int *pp, const mp_int *a, + const mp_int *px, const mp_int *py, const mp_int *qx, const mp_int *qy, + mp_int *rx, mp_int *ry); + +/* Computes R = P - Q. Uses affine coordinates. */ +mp_err GF2m_ec_pt_sub_aff(const mp_int *pp, const mp_int *a, + const mp_int *px, const mp_int *py, const mp_int *qx, const mp_int *qy, + mp_int *rx, mp_int *ry); + +/* Computes R = 2P. Uses affine coordinates. */ +mp_err GF2m_ec_pt_dbl_aff(const mp_int *pp, const mp_int *a, + const mp_int *px, const mp_int *py, mp_int *rx, mp_int *ry); + +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the irreducible that + * determines the field GF2m. Uses affine coordinates. + */ +mp_err GF2m_ec_pt_mul_aff(const mp_int *pp, const mp_int *a, const mp_int *b, + const mp_int *px, const mp_int *py, const mp_int *n, + mp_int *rx, mp_int *ry); + +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the irreducible that + * determines the field GF2m. Uses Montgomery projective coordinates. + */ +mp_err GF2m_ec_pt_mul_mont(const mp_int *pp, const mp_int *a, + const mp_int *b, const mp_int *px, const mp_int *py, + const mp_int *n, mp_int *rx, mp_int *ry); + +#define GF2m_ec_pt_is_inf(px, py) GF2m_ec_pt_is_inf_aff((px), (py)) +#define GF2m_ec_pt_add(p, a, px, py, qx, qy, rx, ry) \ + GF2m_ec_pt_add_aff((p), (a), (px), (py), (qx), (qy), (rx), (ry)) + +#define GF2m_ECL_MONTGOMERY +#ifdef GF2m_ECL_AFFINE +#define GF2m_ec_pt_mul(pp, a, b, px, py, n, rx, ry) \ + GF2m_ec_pt_mul_aff((pp), (a), (b), (px), (py), (n), (rx), (ry)) +#elif defined(GF2m_ECL_MONTGOMERY) +#define GF2m_ec_pt_mul(pp, a, b, px, py, n, rx, ry) \ + GF2m_ec_pt_mul_mont((pp), (a), (b), (px), (py), (n), (rx), (ry)) +#endif /* GF2m_ECL_AFFINE or GF2m_ECL_MONTGOMERY */ + +#endif /* NSS_ENABLE_ECC */ +#endif /* __gf2m_ecl_h_ */ |