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Co-developed-by: Charalampos Mitrodimas Signed-off-by: Charalampos Mitrodimas Co-developed-by: Heiko Stuebner Signed-off-by: Heiko Stuebner Co-developed-by: Phoebe Chen Signed-off-by: Phoebe Chen Signed-off-by: Jerry Shih --- arch/riscv/crypto/Kconfig | 13 + arch/riscv/crypto/Makefile | 7 + arch/riscv/crypto/sha512-riscv64-glue.c | 133 +++++++++ .../crypto/sha512-riscv64-zvkb-zvknhb.pl | 266 ++++++++++++++++++ 4 files changed, 419 insertions(+) create mode 100644 arch/riscv/crypto/sha512-riscv64-glue.c create mode 100644 arch/riscv/crypto/sha512-riscv64-zvkb-zvknhb.pl diff --git a/arch/riscv/crypto/Kconfig b/arch/riscv/crypto/Kconfig index dbc86592063a..a5a34777d9c3 100644 --- a/arch/riscv/crypto/Kconfig +++ b/arch/riscv/crypto/Kconfig @@ -62,4 +62,17 @@ config CRYPTO_SHA256_RISCV64 - Zvkb vector crypto extension - Zvknha or Zvknhb vector crypto extensions +config CRYPTO_SHA512_RISCV64 + default y if RISCV_ISA_V + tristate "Hash functions: SHA-384 and SHA-512" + depends on 64BIT && RISCV_ISA_V + select CRYPTO_HASH + select CRYPTO_SHA512 + help + SHA-512 secure hash algorithm (FIPS 180) + + Architecture: riscv64 using: + - Zvkb vector crypto extension + - Zvknhb vector crypto extension + endmenu diff --git a/arch/riscv/crypto/Makefile b/arch/riscv/crypto/Makefile index 49577fb72cca..ebb4e861ebdc 100644 --- a/arch/riscv/crypto/Makefile +++ b/arch/riscv/crypto/Makefile @@ -15,6 +15,9 @@ ghash-riscv64-y := ghash-riscv64-glue.o ghash-riscv64-zvkg.o obj-$(CONFIG_CRYPTO_SHA256_RISCV64) += sha256-riscv64.o sha256-riscv64-y := sha256-riscv64-glue.o sha256-riscv64-zvkb-zvknha_or_zvknhb.o +obj-$(CONFIG_CRYPTO_SHA512_RISCV64) += sha512-riscv64.o +sha512-riscv64-y := sha512-riscv64-glue.o sha512-riscv64-zvkb-zvknhb.o + quiet_cmd_perlasm = PERLASM $@ cmd_perlasm = $(PERL) $(<) void $(@) @@ -33,8 +36,12 @@ $(obj)/ghash-riscv64-zvkg.S: $(src)/ghash-riscv64-zvkg.pl $(obj)/sha256-riscv64-zvkb-zvknha_or_zvknhb.S: $(src)/sha256-riscv64-zvkb-zvknha_or_zvknhb.pl $(call cmd,perlasm) +$(obj)/sha512-riscv64-zvkb-zvknhb.S: $(src)/sha512-riscv64-zvkb-zvknhb.pl + $(call cmd,perlasm) + clean-files += aes-riscv64-zvkned.S clean-files += aes-riscv64-zvbb-zvkg-zvkned.S clean-files += aes-riscv64-zvkb-zvkned.S clean-files += ghash-riscv64-zvkg.S clean-files += sha256-riscv64-zvkb-zvknha_or_zvknhb.S +clean-files += sha512-riscv64-zvkb-zvknhb.S diff --git a/arch/riscv/crypto/sha512-riscv64-glue.c b/arch/riscv/crypto/sha512-riscv64-glue.c new file mode 100644 index 000000000000..31202b7b8c9b --- /dev/null +++ b/arch/riscv/crypto/sha512-riscv64-glue.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux/riscv64 port of the OpenSSL SHA512 implementation for RISC-V 64 + * + * Copyright (C) 2023 VRULL GmbH + * Author: Heiko Stuebner + */ + +#include +#include +#include +#include +#include +#include +#include + +/* + * sha512 using zvkb and zvknhb vector crypto extension + * + * This asm function will just take the first 512-bit as the sha512 state from + * the pointer to `struct sha512_state`. + */ +void sha512_block_data_order_zvkb_zvknhb(struct sha512_state *digest, + const u8 *data, int num_blks); + +static int riscv64_sha512_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + int ret = 0; + + /* + * Make sure struct sha256_state begins directly with the SHA256 + * 256-bit internal state, as this is what the asm function expect. + */ + BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0); + + if (crypto_simd_usable()) { + kernel_vector_begin(); + ret = sha512_base_do_update( + desc, data, len, sha512_block_data_order_zvkb_zvknhb); + kernel_vector_end(); + } else { + ret = crypto_sha512_update(desc, data, len); + } + + return ret; +} + +static int riscv64_sha512_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + if (crypto_simd_usable()) { + kernel_vector_begin(); + if (len) + sha512_base_do_update( + desc, data, len, + sha512_block_data_order_zvkb_zvknhb); + sha512_base_do_finalize(desc, + sha512_block_data_order_zvkb_zvknhb); + kernel_vector_end(); + + return sha512_base_finish(desc, out); + } + + return crypto_sha512_finup(desc, data, len, out); +} + +static int riscv64_sha512_final(struct shash_desc *desc, u8 *out) +{ + return riscv64_sha512_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_alg[] = { + { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = riscv64_sha512_update, + .final = riscv64_sha512_final, + .finup = riscv64_sha512_finup, + .descsize = sizeof(struct sha512_state), + .base.cra_name = "sha512", + .base.cra_driver_name = "sha512-riscv64-zvkb-zvknhb", + .base.cra_priority = 150, + .base.cra_blocksize = SHA512_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, + }, + { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = riscv64_sha512_update, + .final = riscv64_sha512_final, + .finup = riscv64_sha512_finup, + .descsize = sizeof(struct sha512_state), + .base.cra_name = "sha384", + .base.cra_driver_name = "sha384-riscv64-zvkb-zvknhb", + .base.cra_priority = 150, + .base.cra_blocksize = SHA384_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, + } +}; + +static inline bool check_sha512_ext(void) +{ + return riscv_isa_extension_available(NULL, ZVKNHB) && + riscv_isa_extension_available(NULL, ZVKB) && + riscv_vector_vlen() >= 128; +} + +static int __init riscv64_sha512_mod_init(void) +{ + if (check_sha512_ext()) + return crypto_register_shashes(sha512_alg, + ARRAY_SIZE(sha512_alg)); + + return -ENODEV; +} + +static void __exit riscv64_sha512_mod_fini(void) +{ + if (check_sha512_ext()) + crypto_unregister_shashes(sha512_alg, ARRAY_SIZE(sha512_alg)); +} + +module_init(riscv64_sha512_mod_init); +module_exit(riscv64_sha512_mod_fini); + +MODULE_DESCRIPTION("SHA-512 (RISC-V accelerated)"); +MODULE_AUTHOR("Andy Polyakov "); +MODULE_AUTHOR("Ard Biesheuvel "); +MODULE_AUTHOR("Heiko Stuebner "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("sha384"); +MODULE_ALIAS_CRYPTO("sha512"); diff --git a/arch/riscv/crypto/sha512-riscv64-zvkb-zvknhb.pl b/arch/riscv/crypto/sha512-riscv64-zvkb-zvknhb.pl new file mode 100644 index 000000000000..4be448266a59 --- /dev/null +++ b/arch/riscv/crypto/sha512-riscv64-zvkb-zvknhb.pl @@ -0,0 +1,266 @@ +#! /usr/bin/env perl +# SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause +# +# This file is dual-licensed, meaning that you can use it under your +# choice of either of the following two licenses: +# +# Copyright 2023 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the Apache License 2.0 (the "License"). You can obtain +# a copy in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html +# +# or +# +# Copyright (c) 2023, Christoph Müllner +# Copyright (c) 2023, Phoebe Chen +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. 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. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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. + +# The generated code of this file depends on the following RISC-V extensions: +# - RV64I +# - RISC-V vector ('V') with VLEN >= 128 +# - RISC-V Vector Cryptography Bit-manipulation extension ('Zvkb') +# - RISC-V Vector SHA-2 Secure Hash extension ('Zvknhb') + +use strict; +use warnings; + +use FindBin qw($Bin); +use lib "$Bin"; +use lib "$Bin/../../perlasm"; +use riscv; + +# $output is the last argument if it looks like a file (it has an extension) +# $flavour is the first argument if it doesn't look like a file +my $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef; +my $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef; + +$output and open STDOUT,">$output"; + +my $code=<<___; +.text +___ + +my ($V0, $V1, $V2, $V3, $V4, $V5, $V6, $V7, + $V8, $V9, $V10, $V11, $V12, $V13, $V14, $V15, + $V16, $V17, $V18, $V19, $V20, $V21, $V22, $V23, + $V24, $V25, $V26, $V27, $V28, $V29, $V30, $V31, +) = map("v$_",(0..31)); + +my $K512 = "K512"; + +# Function arguments +my ($H, $INP, $LEN, $KT, $H2, $INDEX_PATTERN) = ("a0", "a1", "a2", "a3", "t3", "t4"); + +################################################################################ +# void sha512_block_data_order_zvkb_zvknhb(void *c, const void *p, size_t len) +$code .= <<___; +.p2align 2 +.globl sha512_block_data_order_zvkb_zvknhb +.type sha512_block_data_order_zvkb_zvknhb,\@function +sha512_block_data_order_zvkb_zvknhb: + @{[vsetivli "zero", 4, "e64", "m2", "ta", "ma"]} + + # H is stored as {a,b,c,d},{e,f,g,h}, but we need {f,e,b,a},{h,g,d,c} + # The dst vtype is e64m2 and the index vtype is e8mf4. + # We use index-load with the following index pattern at v1. + # i8 index: + # 40, 32, 8, 0 + # Instead of setting the i8 index, we could use a single 32bit + # little-endian value to cover the 4xi8 index. + # i32 value: + # 0x 00 08 20 28 + li $INDEX_PATTERN, 0x00082028 + @{[vsetivli "zero", 1, "e32", "m1", "ta", "ma"]} + @{[vmv_v_x $V1, $INDEX_PATTERN]} + + addi $H2, $H, 16 + + # Use index-load to get {f,e,b,a},{h,g,d,c} + @{[vsetivli "zero", 4, "e64", "m2", "ta", "ma"]} + @{[vluxei8_v $V22, $H, $V1]} + @{[vluxei8_v $V24, $H2, $V1]} + + # Setup v0 mask for the vmerge to replace the first word (idx==0) in key-scheduling. + # The AVL is 4 in SHA, so we could use a single e8(8 element masking) for masking. + @{[vsetivli "zero", 1, "e8", "m1", "ta", "ma"]} + @{[vmv_v_i $V0, 0x01]} + + @{[vsetivli "zero", 4, "e64", "m2", "ta", "ma"]} + +L_round_loop: + # Load round constants K512 + la $KT, $K512 + + # Decrement length by 1 + addi $LEN, $LEN, -1 + + # Keep the current state as we need it later: H' = H+{a',b',c',...,h'}. + @{[vmv_v_v $V26, $V22]} + @{[vmv_v_v $V28, $V24]} + + # Load the 1024-bits of the message block in v10-v16 and perform the endian + # swap. + @{[vle64_v $V10, $INP]} + @{[vrev8_v $V10, $V10]} + addi $INP, $INP, 32 + @{[vle64_v $V12, $INP]} + @{[vrev8_v $V12, $V12]} + addi $INP, $INP, 32 + @{[vle64_v $V14, $INP]} + @{[vrev8_v $V14, $V14]} + addi $INP, $INP, 32 + @{[vle64_v $V16, $INP]} + @{[vrev8_v $V16, $V16]} + addi $INP, $INP, 32 + + .rept 4 + # Quad-round 0 (+0, v10->v12->v14->v16) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V10]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + @{[vmerge_vvm $V18, $V14, $V12, $V0]} + @{[vsha2ms_vv $V10, $V18, $V16]} + + # Quad-round 1 (+1, v12->v14->v16->v10) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V12]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + @{[vmerge_vvm $V18, $V16, $V14, $V0]} + @{[vsha2ms_vv $V12, $V18, $V10]} + + # Quad-round 2 (+2, v14->v16->v10->v12) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V14]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + @{[vmerge_vvm $V18, $V10, $V16, $V0]} + @{[vsha2ms_vv $V14, $V18, $V12]} + + # Quad-round 3 (+3, v16->v10->v12->v14) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V16]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + @{[vmerge_vvm $V18, $V12, $V10, $V0]} + @{[vsha2ms_vv $V16, $V18, $V14]} + .endr + + # Quad-round 16 (+0, v10->v12->v14->v16) + # Note that we stop generating new message schedule words (Wt, v10-16) + # as we already generated all the words we end up consuming (i.e., W[79:76]). + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V10]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + + # Quad-round 17 (+1, v12->v14->v16->v10) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V12]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + + # Quad-round 18 (+2, v14->v16->v10->v12) + @{[vle64_v $V20, $KT]} + addi $KT, $KT, 32 + @{[vadd_vv $V18, $V20, $V14]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + + # Quad-round 19 (+3, v16->v10->v12->v14) + @{[vle64_v $V20, $KT]} + # No t1 increment needed. + @{[vadd_vv $V18, $V20, $V16]} + @{[vsha2cl_vv $V24, $V22, $V18]} + @{[vsha2ch_vv $V22, $V24, $V18]} + + # H' = H+{a',b',c',...,h'} + @{[vadd_vv $V22, $V26, $V22]} + @{[vadd_vv $V24, $V28, $V24]} + bnez $LEN, L_round_loop + + # Store {f,e,b,a},{h,g,d,c} back to {a,b,c,d},{e,f,g,h}. + @{[vsuxei8_v $V22, $H, $V1]} + @{[vsuxei8_v $V24, $H2, $V1]} + + ret +.size sha512_block_data_order_zvkb_zvknhb,.-sha512_block_data_order_zvkb_zvknhb + +.p2align 3 +.type $K512,\@object +$K512: + .dword 0x428a2f98d728ae22, 0x7137449123ef65cd + .dword 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc + .dword 0x3956c25bf348b538, 0x59f111f1b605d019 + .dword 0x923f82a4af194f9b, 0xab1c5ed5da6d8118 + .dword 0xd807aa98a3030242, 0x12835b0145706fbe + .dword 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2 + .dword 0x72be5d74f27b896f, 0x80deb1fe3b1696b1 + .dword 0x9bdc06a725c71235, 0xc19bf174cf692694 + .dword 0xe49b69c19ef14ad2, 0xefbe4786384f25e3 + .dword 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65 + .dword 0x2de92c6f592b0275, 0x4a7484aa6ea6e483 + .dword 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5 + .dword 0x983e5152ee66dfab, 0xa831c66d2db43210 + .dword 0xb00327c898fb213f, 0xbf597fc7beef0ee4 + .dword 0xc6e00bf33da88fc2, 0xd5a79147930aa725 + .dword 0x06ca6351e003826f, 0x142929670a0e6e70 + .dword 0x27b70a8546d22ffc, 0x2e1b21385c26c926 + .dword 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df + .dword 0x650a73548baf63de, 0x766a0abb3c77b2a8 + .dword 0x81c2c92e47edaee6, 0x92722c851482353b + .dword 0xa2bfe8a14cf10364, 0xa81a664bbc423001 + .dword 0xc24b8b70d0f89791, 0xc76c51a30654be30 + .dword 0xd192e819d6ef5218, 0xd69906245565a910 + .dword 0xf40e35855771202a, 0x106aa07032bbd1b8 + .dword 0x19a4c116b8d2d0c8, 0x1e376c085141ab53 + .dword 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8 + .dword 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb + .dword 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3 + .dword 0x748f82ee5defb2fc, 0x78a5636f43172f60 + .dword 0x84c87814a1f0ab72, 0x8cc702081a6439ec + .dword 0x90befffa23631e28, 0xa4506cebde82bde9 + .dword 0xbef9a3f7b2c67915, 0xc67178f2e372532b + .dword 0xca273eceea26619c, 0xd186b8c721c0c207 + .dword 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178 + .dword 0x06f067aa72176fba, 0x0a637dc5a2c898a6 + .dword 0x113f9804bef90dae, 0x1b710b35131c471b + .dword 0x28db77f523047d84, 0x32caab7b40c72493 + .dword 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c + .dword 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a + .dword 0x5fcb6fab3ad6faec, 0x6c44198c4a475817 +.size $K512,.-$K512 +___ + +print $code; + +close STDOUT or die 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aou@eecs.berkeley.edu, herbert@gondor.apana.org.au, davem@davemloft.net Cc: andy.chiu@sifive.com, greentime.hu@sifive.com, conor.dooley@microchip.com, guoren@kernel.org, bjorn@rivosinc.com, heiko@sntech.de, ebiggers@kernel.org, ardb@kernel.org, phoebe.chen@sifive.com, hongrong.hsu@sifive.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Subject: [PATCH 09/12] RISC-V: crypto: add Zvknhb accelerated SHA384/512 implementations Date: Thu, 26 Oct 2023 02:36:41 +0800 Message-Id: <20231025183644.8735-10-jerry.shih@sifive.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20231025183644.8735-1-jerry.shih@sifive.com> References: <20231025183644.8735-1-jerry.shih@sifive.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231025_113735_327511_31F2E1C1 X-CRM114-Status: GOOD ( 32.14 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: 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