lib/crypto/powerpc/curve25519-ppc64le_asm.S

Source file repositories/reference/linux-study-clean/lib/crypto/powerpc/curve25519-ppc64le_asm.S

File Facts

System
Linux kernel
Corpus path
lib/crypto/powerpc/curve25519-ppc64le_asm.S
Extension
.S
Size
10792 bytes
Lines
672
Domain
Kernel Services
Bucket
lib
Inferred role
Kernel Services: lib
Status
atlas-only

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

Dependency Surface

Detected Declarations

Annotated Snippet

#
# This code is taken from CRYPTOGAMs[1] and is included here using the option
# in the license to distribute the code under the GPL. Therefore this program
# is free software; you can redistribute it and/or modify it under the terms of
# the GNU General Public License version 2 as published by the Free Software
# Foundation.
#
# [1] https://github.com/dot-asm/cryptogams/

# Copyright (c) 2006-2017, CRYPTOGAMS by <appro@openssl.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
#       * Redistributions of source code must retain copyright notices,
#         this list of conditions and the following disclaimer.
#
#       * Redistributions in binary form must reproduce the above
#         copyright notice, this list of conditions and the following
#         disclaimer in the documentation and/or other materials
#         provided with the distribution.
#
#       * Neither the name of the CRYPTOGAMS nor the names of its
#         copyright holder and contributors may be used to endorse or
#         promote products derived from this software without specific
#         prior written permission.
#
# ALTERNATIVELY, provided that this notice is retained in full, this
# product may be distributed under the terms of the GNU General Public
# License (GPL), in which case the provisions of the GPL apply INSTEAD OF
# those given above.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see https://www.openssl.org/~appro/cryptogams/.
# ====================================================================

#
# ====================================================================
# Written and Modified by Danny Tsen <dtsen@us.ibm.com>
# - Added x25519_fe51_sqr_times, x25519_fe51_frombytes, x25519_fe51_tobytes
#   and x25519_cswap
#
# Copyright 2024- IBM Corp.
#
# X25519 lower-level primitives for PPC64.
#

#include <linux/linkage.h>

.text

.align	5
SYM_FUNC_START(x25519_fe51_mul)

Annotation

Implementation Notes