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Diffstat (limited to 'mozilla/security/nss/lib/freebl/mpi/mp_gf2m-priv.h')
| -rw-r--r-- | mozilla/security/nss/lib/freebl/mpi/mp_gf2m-priv.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/mozilla/security/nss/lib/freebl/mpi/mp_gf2m-priv.h b/mozilla/security/nss/lib/freebl/mpi/mp_gf2m-priv.h new file mode 100644 index 0000000..f93597d --- /dev/null +++ b/mozilla/security/nss/lib/freebl/mpi/mp_gf2m-priv.h @@ -0,0 +1,102 @@ +/* + * ***** BEGIN LICENSE BLOCK ***** + * 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 Multi-precision Binary Polynomial Arithmetic 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): + * Sheueling Chang Shantz <sheueling.chang@sun.com> and + * Douglas Stebila <douglas@stebila.ca> of Sun Laboratories. + * + * 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. + * + * ***** END LICENSE BLOCK ***** */ + +#ifndef _MP_GF2M_PRIV_H_ +#define _MP_GF2M_PRIV_H_ + +#include "mpi-priv.h" + +extern const mp_digit mp_gf2m_sqr_tb[16]; + +#if defined(MP_USE_UINT_DIGIT) +#define MP_DIGIT_BITS 32 +#else +#define MP_DIGIT_BITS 64 +#endif + +/* Platform-specific macros for fast binary polynomial squaring. */ +#if MP_DIGIT_BITS == 32 +#define gf2m_SQR1(w) \ + mp_gf2m_sqr_tb[(w) >> 28 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 24 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 20 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) >> 16 & 0xF] +#define gf2m_SQR0(w) \ + mp_gf2m_sqr_tb[(w) >> 12 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 8 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 4 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) & 0xF] +#else +#define gf2m_SQR1(w) \ + mp_gf2m_sqr_tb[(w) >> 60 & 0xF] << 56 | mp_gf2m_sqr_tb[(w) >> 56 & 0xF] << 48 | \ + mp_gf2m_sqr_tb[(w) >> 52 & 0xF] << 40 | mp_gf2m_sqr_tb[(w) >> 48 & 0xF] << 32 | \ + mp_gf2m_sqr_tb[(w) >> 44 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 40 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 36 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) >> 32 & 0xF] +#define gf2m_SQR0(w) \ + mp_gf2m_sqr_tb[(w) >> 28 & 0xF] << 56 | mp_gf2m_sqr_tb[(w) >> 24 & 0xF] << 48 | \ + mp_gf2m_sqr_tb[(w) >> 20 & 0xF] << 40 | mp_gf2m_sqr_tb[(w) >> 16 & 0xF] << 32 | \ + mp_gf2m_sqr_tb[(w) >> 12 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 8 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 4 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) & 0xF] +#endif + +/* Multiply two binary polynomials mp_digits a, b. + * Result is a polynomial with degree < 2 * MP_DIGIT_BITS - 1. + * Output in two mp_digits rh, rl. + */ +void s_bmul_1x1(mp_digit *rh, mp_digit *rl, const mp_digit a, const mp_digit b); + +/* Compute xor-multiply of two binary polynomials (a1, a0) x (b1, b0) + * result is a binary polynomial in 4 mp_digits r[4]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_2x2(mp_digit *r, const mp_digit a1, const mp_digit a0, const mp_digit b1, + const mp_digit b0); + +/* Compute xor-multiply of two binary polynomials (a2, a1, a0) x (b2, b1, b0) + * result is a binary polynomial in 6 mp_digits r[6]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_3x3(mp_digit *r, const mp_digit a2, const mp_digit a1, const mp_digit a0, + const mp_digit b2, const mp_digit b1, const mp_digit b0); + +/* Compute xor-multiply of two binary polynomials (a3, a2, a1, a0) x (b3, b2, b1, b0) + * result is a binary polynomial in 8 mp_digits r[8]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_4x4(mp_digit *r, const mp_digit a3, const mp_digit a2, const mp_digit a1, + const mp_digit a0, const mp_digit b3, const mp_digit b2, const mp_digit b1, + const mp_digit b0); + +#endif /* _MP_GF2M_PRIV_H_ */ |