crypto: ppc/curve25519 - Low-level primitives for ppc64le
Use the perl output of x25519-ppc64.pl from CRYPTOGAMs (see https://github.com/dot-asm/cryptogams/) and added four supporting functions, x25519_fe51_sqr_times, x25519_fe51_frombytes, x25519_fe51_tobytes and x25519_cswap. Signed-off-by: Danny Tsen <dtsen@linux.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Danny Tsen
Herbert Xu
parent
6684f97981
commit
bbb66f218d
671
arch/powerpc/crypto/curve25519-ppc64le_asm.S
Normal file
671
arch/powerpc/crypto/curve25519-ppc64le_asm.S
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@ -0,0 +1,671 @@
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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#
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# This code is taken from CRYPTOGAMs[1] and is included here using the option
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# in the license to distribute the code under the GPL. Therefore this program
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# is free software; you can redistribute it and/or modify it under the terms of
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# the GNU General Public License version 2 as published by the Free Software
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# Foundation.
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#
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# [1] https://github.com/dot-asm/cryptogams/
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# Copyright (c) 2006-2017, CRYPTOGAMS by <appro@openssl.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain copyright notices,
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# this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# * Neither the name of the CRYPTOGAMS nor the names of its
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# copyright holder and contributors may be used to endorse or
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# promote products derived from this software without specific
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# prior written permission.
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#
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# ALTERNATIVELY, provided that this notice is retained in full, this
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# product may be distributed under the terms of the GNU General Public
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# License (GPL), in which case the provisions of the GPL apply INSTEAD OF
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# those given above.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see https://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# ====================================================================
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# Written and Modified by Danny Tsen <dtsen@us.ibm.com>
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# - Added x25519_fe51_sqr_times, x25519_fe51_frombytes, x25519_fe51_tobytes
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# and x25519_cswap
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#
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# Copyright 2024- IBM Corp.
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#
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# X25519 lower-level primitives for PPC64.
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#
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#include <linux/linkage.h>
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.text
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.align 5
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SYM_FUNC_START(x25519_fe51_mul)
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stdu 1,-144(1)
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std 21,56(1)
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std 22,64(1)
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std 23,72(1)
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std 24,80(1)
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std 25,88(1)
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std 26,96(1)
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std 27,104(1)
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std 28,112(1)
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std 29,120(1)
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std 30,128(1)
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std 31,136(1)
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ld 6,0(5)
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ld 7,0(4)
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ld 8,8(4)
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ld 9,16(4)
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ld 10,24(4)
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ld 11,32(4)
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mulld 22,7,6
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mulhdu 23,7,6
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mulld 24,8,6
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mulhdu 25,8,6
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mulld 30,11,6
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mulhdu 31,11,6
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ld 4,8(5)
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mulli 11,11,19
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mulld 26,9,6
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mulhdu 27,9,6
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mulld 28,10,6
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mulhdu 29,10,6
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mulld 12,11,4
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mulhdu 21,11,4
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addc 22,22,12
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adde 23,23,21
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mulld 12,7,4
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mulhdu 21,7,4
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addc 24,24,12
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adde 25,25,21
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mulld 12,10,4
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mulhdu 21,10,4
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ld 6,16(5)
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mulli 10,10,19
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addc 30,30,12
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adde 31,31,21
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mulld 12,8,4
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mulhdu 21,8,4
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addc 26,26,12
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adde 27,27,21
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mulld 12,9,4
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mulhdu 21,9,4
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addc 28,28,12
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adde 29,29,21
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mulld 12,10,6
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mulhdu 21,10,6
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addc 22,22,12
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adde 23,23,21
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mulld 12,11,6
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mulhdu 21,11,6
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addc 24,24,12
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adde 25,25,21
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mulld 12,9,6
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mulhdu 21,9,6
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ld 4,24(5)
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mulli 9,9,19
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addc 30,30,12
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adde 31,31,21
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mulld 12,7,6
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mulhdu 21,7,6
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addc 26,26,12
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adde 27,27,21
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mulld 12,8,6
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mulhdu 21,8,6
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addc 28,28,12
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adde 29,29,21
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mulld 12,9,4
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mulhdu 21,9,4
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addc 22,22,12
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adde 23,23,21
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mulld 12,10,4
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mulhdu 21,10,4
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addc 24,24,12
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adde 25,25,21
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mulld 12,8,4
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mulhdu 21,8,4
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ld 6,32(5)
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mulli 8,8,19
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addc 30,30,12
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adde 31,31,21
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mulld 12,11,4
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mulhdu 21,11,4
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addc 26,26,12
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adde 27,27,21
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mulld 12,7,4
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mulhdu 21,7,4
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addc 28,28,12
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adde 29,29,21
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mulld 12,8,6
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mulhdu 21,8,6
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addc 22,22,12
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adde 23,23,21
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mulld 12,9,6
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mulhdu 21,9,6
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addc 24,24,12
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adde 25,25,21
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mulld 12,10,6
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mulhdu 21,10,6
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addc 26,26,12
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adde 27,27,21
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mulld 12,11,6
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mulhdu 21,11,6
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addc 28,28,12
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adde 29,29,21
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mulld 12,7,6
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mulhdu 21,7,6
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addc 30,30,12
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adde 31,31,21
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.Lfe51_reduce:
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li 0,-1
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srdi 0,0,13
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srdi 12,26,51
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and 9,26,0
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insrdi 12,27,51,0
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srdi 21,22,51
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and 7,22,0
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insrdi 21,23,51,0
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addc 28,28,12
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addze 29,29
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addc 24,24,21
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addze 25,25
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srdi 12,28,51
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and 10,28,0
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insrdi 12,29,51,0
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srdi 21,24,51
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and 8,24,0
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insrdi 21,25,51,0
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addc 30,30,12
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addze 31,31
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add 9,9,21
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srdi 12,30,51
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and 11,30,0
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insrdi 12,31,51,0
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mulli 12,12,19
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add 7,7,12
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srdi 21,9,51
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and 9,9,0
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add 10,10,21
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srdi 12,7,51
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and 7,7,0
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add 8,8,12
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std 9,16(3)
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std 10,24(3)
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std 11,32(3)
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std 7,0(3)
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std 8,8(3)
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ld 21,56(1)
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ld 22,64(1)
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ld 23,72(1)
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ld 24,80(1)
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ld 25,88(1)
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ld 26,96(1)
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ld 27,104(1)
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ld 28,112(1)
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ld 29,120(1)
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ld 30,128(1)
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ld 31,136(1)
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addi 1,1,144
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blr
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SYM_FUNC_END(x25519_fe51_mul)
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.align 5
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SYM_FUNC_START(x25519_fe51_sqr)
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stdu 1,-144(1)
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std 21,56(1)
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std 22,64(1)
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std 23,72(1)
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std 24,80(1)
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std 25,88(1)
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std 26,96(1)
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std 27,104(1)
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std 28,112(1)
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std 29,120(1)
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std 30,128(1)
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std 31,136(1)
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ld 7,0(4)
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ld 8,8(4)
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ld 9,16(4)
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ld 10,24(4)
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ld 11,32(4)
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add 6,7,7
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mulli 21,11,19
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mulld 22,7,7
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mulhdu 23,7,7
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mulld 24,8,6
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mulhdu 25,8,6
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mulld 26,9,6
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mulhdu 27,9,6
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mulld 28,10,6
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mulhdu 29,10,6
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mulld 30,11,6
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mulhdu 31,11,6
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add 6,8,8
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mulld 12,11,21
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mulhdu 11,11,21
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addc 28,28,12
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adde 29,29,11
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mulli 5,10,19
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mulld 12,8,8
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mulhdu 11,8,8
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addc 26,26,12
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adde 27,27,11
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mulld 12,9,6
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mulhdu 11,9,6
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addc 28,28,12
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adde 29,29,11
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mulld 12,10,6
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mulhdu 11,10,6
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addc 30,30,12
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adde 31,31,11
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mulld 12,21,6
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mulhdu 11,21,6
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add 6,10,10
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addc 22,22,12
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adde 23,23,11
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mulld 12,10,5
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mulhdu 10,10,5
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addc 24,24,12
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adde 25,25,10
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mulld 12,6,21
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mulhdu 10,6,21
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add 6,9,9
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addc 26,26,12
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adde 27,27,10
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mulld 12,9,9
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mulhdu 10,9,9
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addc 30,30,12
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adde 31,31,10
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mulld 12,5,6
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mulhdu 10,5,6
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addc 22,22,12
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adde 23,23,10
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mulld 12,21,6
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mulhdu 10,21,6
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addc 24,24,12
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adde 25,25,10
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b .Lfe51_reduce
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SYM_FUNC_END(x25519_fe51_sqr)
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.align 5
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SYM_FUNC_START(x25519_fe51_mul121666)
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stdu 1,-144(1)
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std 21,56(1)
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std 22,64(1)
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std 23,72(1)
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std 24,80(1)
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std 25,88(1)
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std 26,96(1)
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std 27,104(1)
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std 28,112(1)
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std 29,120(1)
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std 30,128(1)
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std 31,136(1)
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lis 6,1
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ori 6,6,56130
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ld 7,0(4)
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ld 8,8(4)
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ld 9,16(4)
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ld 10,24(4)
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ld 11,32(4)
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mulld 22,7,6
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mulhdu 23,7,6
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mulld 24,8,6
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mulhdu 25,8,6
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mulld 26,9,6
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mulhdu 27,9,6
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mulld 28,10,6
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mulhdu 29,10,6
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mulld 30,11,6
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mulhdu 31,11,6
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b .Lfe51_reduce
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SYM_FUNC_END(x25519_fe51_mul121666)
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.align 5
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SYM_FUNC_START(x25519_fe51_sqr_times)
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stdu 1,-144(1)
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std 21,56(1)
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std 22,64(1)
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std 23,72(1)
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std 24,80(1)
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std 25,88(1)
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std 26,96(1)
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std 27,104(1)
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std 28,112(1)
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std 29,120(1)
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std 30,128(1)
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std 31,136(1)
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ld 7,0(4)
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ld 8,8(4)
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ld 9,16(4)
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ld 10,24(4)
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ld 11,32(4)
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mtctr 5
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.Lsqr_times_loop:
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add 6,7,7
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mulli 21,11,19
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mulld 22,7,7
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mulhdu 23,7,7
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mulld 24,8,6
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mulhdu 25,8,6
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mulld 26,9,6
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mulhdu 27,9,6
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mulld 28,10,6
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mulhdu 29,10,6
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mulld 30,11,6
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mulhdu 31,11,6
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add 6,8,8
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mulld 12,11,21
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mulhdu 11,11,21
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addc 28,28,12
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adde 29,29,11
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mulli 5,10,19
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mulld 12,8,8
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mulhdu 11,8,8
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addc 26,26,12
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adde 27,27,11
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mulld 12,9,6
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mulhdu 11,9,6
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addc 28,28,12
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adde 29,29,11
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mulld 12,10,6
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mulhdu 11,10,6
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addc 30,30,12
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adde 31,31,11
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mulld 12,21,6
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mulhdu 11,21,6
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add 6,10,10
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addc 22,22,12
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adde 23,23,11
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mulld 12,10,5
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mulhdu 10,10,5
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addc 24,24,12
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adde 25,25,10
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mulld 12,6,21
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mulhdu 10,6,21
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add 6,9,9
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addc 26,26,12
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adde 27,27,10
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mulld 12,9,9
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mulhdu 10,9,9
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addc 30,30,12
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adde 31,31,10
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mulld 12,5,6
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mulhdu 10,5,6
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addc 22,22,12
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adde 23,23,10
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mulld 12,21,6
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mulhdu 10,21,6
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addc 24,24,12
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adde 25,25,10
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# fe51_reduce
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li 0,-1
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srdi 0,0,13
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srdi 12,26,51
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and 9,26,0
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insrdi 12,27,51,0
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srdi 21,22,51
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and 7,22,0
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insrdi 21,23,51,0
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addc 28,28,12
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addze 29,29
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addc 24,24,21
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addze 25,25
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srdi 12,28,51
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and 10,28,0
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insrdi 12,29,51,0
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srdi 21,24,51
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and 8,24,0
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insrdi 21,25,51,0
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addc 30,30,12
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addze 31,31
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add 9,9,21
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srdi 12,30,51
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and 11,30,0
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insrdi 12,31,51,0
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mulli 12,12,19
|
||||
|
||||
add 7,7,12
|
||||
|
||||
srdi 21,9,51
|
||||
and 9,9,0
|
||||
add 10,10,21
|
||||
|
||||
srdi 12,7,51
|
||||
and 7,7,0
|
||||
add 8,8,12
|
||||
|
||||
bdnz .Lsqr_times_loop
|
||||
|
||||
std 9,16(3)
|
||||
std 10,24(3)
|
||||
std 11,32(3)
|
||||
std 7,0(3)
|
||||
std 8,8(3)
|
||||
|
||||
ld 21,56(1)
|
||||
ld 22,64(1)
|
||||
ld 23,72(1)
|
||||
ld 24,80(1)
|
||||
ld 25,88(1)
|
||||
ld 26,96(1)
|
||||
ld 27,104(1)
|
||||
ld 28,112(1)
|
||||
ld 29,120(1)
|
||||
ld 30,128(1)
|
||||
ld 31,136(1)
|
||||
addi 1,1,144
|
||||
blr
|
||||
SYM_FUNC_END(x25519_fe51_sqr_times)
|
||||
|
||||
.align 5
|
||||
SYM_FUNC_START(x25519_fe51_frombytes)
|
||||
|
||||
li 12, -1
|
||||
srdi 12, 12, 13 # 0x7ffffffffffff
|
||||
|
||||
ld 5, 0(4)
|
||||
ld 6, 8(4)
|
||||
ld 7, 16(4)
|
||||
ld 8, 24(4)
|
||||
|
||||
srdi 10, 5, 51
|
||||
and 5, 5, 12 # h0
|
||||
|
||||
sldi 11, 6, 13
|
||||
or 11, 10, 11 # h1t
|
||||
srdi 10, 6, 38
|
||||
and 6, 11, 12 # h1
|
||||
|
||||
sldi 11, 7, 26
|
||||
or 10, 10, 11 # h2t
|
||||
|
||||
srdi 11, 7, 25
|
||||
and 7, 10, 12 # h2
|
||||
sldi 10, 8, 39
|
||||
or 11, 11, 10 # h3t
|
||||
|
||||
srdi 9, 8, 12
|
||||
and 8, 11, 12 # h3
|
||||
and 9, 9, 12 # h4
|
||||
|
||||
std 5, 0(3)
|
||||
std 6, 8(3)
|
||||
std 7, 16(3)
|
||||
std 8, 24(3)
|
||||
std 9, 32(3)
|
||||
|
||||
blr
|
||||
SYM_FUNC_END(x25519_fe51_frombytes)
|
||||
|
||||
.align 5
|
||||
SYM_FUNC_START(x25519_fe51_tobytes)
|
||||
|
||||
ld 5, 0(4)
|
||||
ld 6, 8(4)
|
||||
ld 7, 16(4)
|
||||
ld 8, 24(4)
|
||||
ld 9, 32(4)
|
||||
|
||||
li 12, -1
|
||||
srdi 12, 12, 13 # 0x7ffffffffffff
|
||||
|
||||
# Full reducuction
|
||||
addi 10, 5, 19
|
||||
srdi 10, 10, 51
|
||||
add 10, 10, 6
|
||||
srdi 10, 10, 51
|
||||
add 10, 10, 7
|
||||
srdi 10, 10, 51
|
||||
add 10, 10, 8
|
||||
srdi 10, 10, 51
|
||||
add 10, 10, 9
|
||||
srdi 10, 10, 51
|
||||
|
||||
mulli 10, 10, 19
|
||||
add 5, 5, 10
|
||||
srdi 11, 5, 51
|
||||
add 6, 6, 11
|
||||
srdi 11, 6, 51
|
||||
add 7, 7, 11
|
||||
srdi 11, 7, 51
|
||||
add 8, 8, 11
|
||||
srdi 11, 8, 51
|
||||
add 9, 9, 11
|
||||
|
||||
and 5, 5, 12
|
||||
and 6, 6, 12
|
||||
and 7, 7, 12
|
||||
and 8, 8, 12
|
||||
and 9, 9, 12
|
||||
|
||||
sldi 10, 6, 51
|
||||
or 5, 5, 10 # s0
|
||||
|
||||
srdi 11, 6, 13
|
||||
sldi 10, 7, 38
|
||||
or 6, 11, 10 # s1
|
||||
|
||||
srdi 11, 7, 26
|
||||
sldi 10, 8, 25
|
||||
or 7, 11, 10 # s2
|
||||
|
||||
srdi 11, 8, 39
|
||||
sldi 10, 9, 12
|
||||
or 8, 11, 10 # s4
|
||||
|
||||
std 5, 0(3)
|
||||
std 6, 8(3)
|
||||
std 7, 16(3)
|
||||
std 8, 24(3)
|
||||
|
||||
blr
|
||||
SYM_FUNC_END(x25519_fe51_tobytes)
|
||||
|
||||
.align 5
|
||||
SYM_FUNC_START(x25519_cswap)
|
||||
|
||||
li 7, 5
|
||||
neg 6, 5
|
||||
mtctr 7
|
||||
|
||||
.Lswap_loop:
|
||||
ld 8, 0(3)
|
||||
ld 9, 0(4)
|
||||
xor 10, 8, 9
|
||||
and 10, 10, 6
|
||||
xor 11, 8, 10
|
||||
xor 12, 9, 10
|
||||
std 11, 0(3)
|
||||
addi 3, 3, 8
|
||||
std 12, 0(4)
|
||||
addi 4, 4, 8
|
||||
bdnz .Lswap_loop
|
||||
|
||||
blr
|
||||
SYM_FUNC_END(x25519_cswap)
|
||||
Loading…
Reference in New Issue
Block a user