forked from pool/openssl-1_1
Pedro Monreal Gonzalez
9fd6ae9e88
OBS-URL: https://build.opensuse.org/package/show/security:tls/openssl-1_1?expand=0&rev=166
1589 lines
32 KiB
Diff
1589 lines
32 KiB
Diff
From 44a563dde1584cd9284e80b6e45ee5019be8d36c Mon Sep 17 00:00:00 2001
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From: Danny Tsen <dtsen@us.ibm.com>
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Date: Mon, 18 Oct 2021 10:51:42 -0400
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Subject: [PATCH] AES-GCM performance optimzation with stitched method for p9+
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ppc64le
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Assembly code reviewed by Shricharan Srivatsan <ssrivat@us.ibm.com>
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Reviewed-by: Tomas Mraz <tomas@openssl.org>
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Reviewed-by: Paul Dale <pauli@openssl.org>
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(Merged from https://github.com/openssl/openssl/pull/16854)
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---
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Configurations/00-base-templates.conf | 2
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crypto/evp/e_aes.c | 33
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crypto/modes/asm/aes-gcm-ppc.pl | 1439 ++++++++++++++++++++++++++++++++++
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crypto/modes/build.info | 1
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4 files changed, 1466 insertions(+), 9 deletions(-)
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create mode 100644 crypto/modes/asm/aes-gcm-ppc.pl
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create mode 100644 providers/implementations/ciphers/cipher_aes_gcm_hw_ppc.inc
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--- a/Configurations/00-base-templates.conf
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+++ b/Configurations/00-base-templates.conf
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@@ -344,7 +344,7 @@ my %targets=(
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bn_asm_src => "bn-ppc.s ppc-mont.s",
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aes_asm_src => "aes_core.c aes_cbc.c aes-ppc.s vpaes-ppc.s aesp8-ppc.s",
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sha1_asm_src => "sha1-ppc.s sha256-ppc.s sha512-ppc.s sha256p8-ppc.s sha512p8-ppc.s",
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- modes_asm_src => "ghashp8-ppc.s",
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+ modes_asm_src => "ghashp8-ppc.s aes-gcm-ppc.s",
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chacha_asm_src => "chacha-ppc.s",
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poly1305_asm_src=> "poly1305-ppc.s poly1305-ppcfp.s",
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},
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--- a/crypto/evp/e_aes.c
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+++ b/crypto/evp/e_aes.c
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@@ -178,6 +178,20 @@ static void ctr64_inc(unsigned char *cou
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# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
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# define HWAES_xts_encrypt aes_p8_xts_encrypt
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# define HWAES_xts_decrypt aes_p8_xts_decrypt
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+# define PPC_AES_GCM_CAPABLE (OPENSSL_ppccap_P & PPC_MADD300)
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+# define AES_GCM_ENC_BYTES 128
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+# define AES_GCM_DEC_BYTES 128
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+size_t ppc_aes_gcm_encrypt(const unsigned char *in, unsigned char *out, size_t len,
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+ const void *key, unsigned char ivec[16], u64 *Xi);
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+size_t ppc_aes_gcm_decrypt(const unsigned char *in, unsigned char *out, size_t len,
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+ const void *key, unsigned char ivec[16], u64 *Xi);
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+void gcm_ghash_p8(u64 Xi[2],const u128 Htable[16],const u8 *inp, size_t len);
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+# if PPC_AES_GCM_CAPABLE
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+# define AES_gcm_encrypt ppc_aes_gcm_encrypt
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+# define AES_gcm_decrypt ppc_aes_gcm_decrypt
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+# define AES_GCM_ASM(gctx) ((gctx)->ctr==aes_p8_ctr32_encrypt_blocks && \
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+ (gctx)->gcm.ghash==gcm_ghash_p8)
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+# endif
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#endif
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#if defined(OPENSSL_CPUID_OBJ) && ( \
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@@ -199,6 +213,9 @@ extern unsigned int OPENSSL_ia32cap_P[];
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*/
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# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
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+# define AES_GCM_ENC_BYTES 32
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+# define AES_GCM_DEC_BYTES 16
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+
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int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
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AES_KEY *key);
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int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
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@@ -3101,7 +3118,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER
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if (gctx->ctr) {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM)
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- if (len >= 32 && AES_GCM_ASM(gctx)) {
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+ if (len >= AES_GCM_ENC_BYTES && AES_GCM_ASM(gctx)) {
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if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
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return -1;
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@@ -3119,7 +3136,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER
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} else {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM2)
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- if (len >= 32 && AES_GCM_ASM2(gctx)) {
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+ if (len >= AES_GCM_ENC_BYTES && AES_GCM_ASM2(gctx)) {
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if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
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return -1;
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@@ -3142,7 +3159,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER
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if (gctx->ctr) {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM)
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- if (len >= 16 && AES_GCM_ASM(gctx)) {
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+ if (len >= AES_GCM_DEC_BYTES && AES_GCM_ASM(gctx)) {
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if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
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return -1;
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@@ -3160,7 +3177,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER
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} else {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM2)
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- if (len >= 16 && AES_GCM_ASM2(gctx)) {
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+ if (len >= AES_GCM_DEC_BYTES && AES_GCM_ASM2(gctx)) {
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if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
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return -1;
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@@ -3211,7 +3228,7 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX
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if (gctx->ctr) {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM)
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- if (len >= 32 && AES_GCM_ASM(gctx)) {
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+ if (len >= AES_GCM_ENC_BYTES && AES_GCM_ASM(gctx)) {
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size_t res = (16 - gctx->gcm.mres) % 16;
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if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
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@@ -3233,7 +3250,7 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX
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} else {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM2)
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- if (len >= 32 && AES_GCM_ASM2(gctx)) {
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+ if (len >= AES_GCM_ENC_BYTES && AES_GCM_ASM2(gctx)) {
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size_t res = (16 - gctx->gcm.mres) % 16;
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if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
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@@ -3255,7 +3272,7 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX
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if (gctx->ctr) {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM)
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- if (len >= 16 && AES_GCM_ASM(gctx)) {
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+ if (len >= AES_GCM_DEC_BYTES && AES_GCM_ASM(gctx)) {
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size_t res = (16 - gctx->gcm.mres) % 16;
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if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
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@@ -3277,7 +3294,7 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX
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} else {
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size_t bulk = 0;
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#if defined(AES_GCM_ASM2)
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- if (len >= 16 && AES_GCM_ASM2(gctx)) {
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+ if (len >= AES_GCM_DEC_BYTES && AES_GCM_ASM2(gctx)) {
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size_t res = (16 - gctx->gcm.mres) % 16;
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if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
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--- /dev/null
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+++ b/crypto/modes/asm/aes-gcm-ppc.pl
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@@ -0,0 +1,1439 @@
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+#! /usr/bin/env perl
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+# Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved.
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+# Copyright 2021- IBM Inc. All rights reserved
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+#
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+# Licensed under the Apache License 2.0 (the "License"). You may not use
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+# this file except in compliance with the License. You can obtain a copy
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+# in the file LICENSE in the source distribution or at
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+# https://www.openssl.org/source/license.html
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+#
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+#===================================================================================
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+# Written by Danny Tsen <dtsen@us.ibm.com> for OpenSSL Project,
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+#
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+# GHASH is based on the Karatsuba multiplication method.
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+#
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+# Xi xor X1
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+#
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+# X1 * H^4 + X2 * H^3 + x3 * H^2 + X4 * H =
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+# (X1.h * H4.h + xX.l * H4.l + X1 * H4) +
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+# (X2.h * H3.h + X2.l * H3.l + X2 * H3) +
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+# (X3.h * H2.h + X3.l * H2.l + X3 * H2) +
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+# (X4.h * H.h + X4.l * H.l + X4 * H)
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+#
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+# Xi = v0
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+# H Poly = v2
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+# Hash keys = v3 - v14
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+# ( H.l, H, H.h)
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+# ( H^2.l, H^2, H^2.h)
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+# ( H^3.l, H^3, H^3.h)
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+# ( H^4.l, H^4, H^4.h)
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+#
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+# v30 is IV
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+# v31 - counter 1
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+#
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+# AES used,
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+# vs0 - vs14 for round keys
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+# v15, v16, v17, v18, v19, v20, v21, v22 for 8 blocks (encrypted)
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+#
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+# This implementation uses stitched AES-GCM approach to improve overall performance.
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+# AES is implemented with 8x blocks and GHASH is using 2 4x blocks.
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+#
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+# Current large block (16384 bytes) performance per second with 128 bit key --
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+#
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+# Encrypt Decrypt
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+# Power10[le] (3.5GHz) 5.32G 5.26G
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+#
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+# ===================================================================================
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+#
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+# $output is the last argument if it looks like a file (it has an extension)
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+# $flavour is the first argument if it doesn't look like a file
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+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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+
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+if ($flavour =~ /64/) {
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+ $SIZE_T=8;
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+ $LRSAVE=2*$SIZE_T;
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+ $STU="stdu";
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+ $POP="ld";
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+ $PUSH="std";
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+ $UCMP="cmpld";
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+ $SHRI="srdi";
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+} elsif ($flavour =~ /32/) {
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+ $SIZE_T=4;
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+ $LRSAVE=$SIZE_T;
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+ $STU="stwu";
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+ $POP="lwz";
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+ $PUSH="stw";
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+ $UCMP="cmplw";
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+ $SHRI="srwi";
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+} else { die "nonsense $flavour"; }
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+
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+$sp="r1";
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+$FRAME=6*$SIZE_T+13*16; # 13*16 is for v20-v31 offload
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+
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+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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+( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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+( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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+die "can't locate ppc-xlate.pl";
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+
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+open STDOUT,"| $^X $xlate $flavour \"$output\""
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+ or die "can't call $xlate: $!";
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+
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+$code=<<___;
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+.machine "any"
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+.abiversion 2
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+.text
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+
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+# 4x loops
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+# v15 - v18 - input states
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+# vs1 - vs9 - round keys
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+#
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+.macro Loop_aes_middle4x
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+ xxlor 19+32, 1, 1
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+ xxlor 20+32, 2, 2
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+ xxlor 21+32, 3, 3
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+ xxlor 22+32, 4, 4
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+
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+ vcipher 15, 15, 19
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+ vcipher 16, 16, 19
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+ vcipher 17, 17, 19
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+ vcipher 18, 18, 19
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+
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+ vcipher 15, 15, 20
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+ vcipher 16, 16, 20
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+ vcipher 17, 17, 20
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+ vcipher 18, 18, 20
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+
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+ vcipher 15, 15, 21
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+ vcipher 16, 16, 21
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+ vcipher 17, 17, 21
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+ vcipher 18, 18, 21
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+
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+ vcipher 15, 15, 22
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+ vcipher 16, 16, 22
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+ vcipher 17, 17, 22
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+ vcipher 18, 18, 22
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+
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+ xxlor 19+32, 5, 5
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+ xxlor 20+32, 6, 6
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+ xxlor 21+32, 7, 7
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+ xxlor 22+32, 8, 8
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+
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+ vcipher 15, 15, 19
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+ vcipher 16, 16, 19
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+ vcipher 17, 17, 19
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+ vcipher 18, 18, 19
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+
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+ vcipher 15, 15, 20
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+ vcipher 16, 16, 20
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+ vcipher 17, 17, 20
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+ vcipher 18, 18, 20
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+
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+ vcipher 15, 15, 21
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+ vcipher 16, 16, 21
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+ vcipher 17, 17, 21
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+ vcipher 18, 18, 21
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+
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+ vcipher 15, 15, 22
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+ vcipher 16, 16, 22
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+ vcipher 17, 17, 22
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+ vcipher 18, 18, 22
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+
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+ xxlor 23+32, 9, 9
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+ vcipher 15, 15, 23
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+ vcipher 16, 16, 23
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+ vcipher 17, 17, 23
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+ vcipher 18, 18, 23
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+.endm
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+
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+# 8x loops
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+# v15 - v22 - input states
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+# vs1 - vs9 - round keys
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+#
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+.macro Loop_aes_middle8x
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+ xxlor 23+32, 1, 1
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+ xxlor 24+32, 2, 2
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+ xxlor 25+32, 3, 3
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+ xxlor 26+32, 4, 4
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+
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+ vcipher 15, 15, 23
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+ vcipher 16, 16, 23
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+ vcipher 17, 17, 23
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+ vcipher 18, 18, 23
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+ vcipher 19, 19, 23
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+ vcipher 20, 20, 23
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+ vcipher 21, 21, 23
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+ vcipher 22, 22, 23
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+
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+ vcipher 15, 15, 24
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+ vcipher 16, 16, 24
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+ vcipher 17, 17, 24
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+ vcipher 18, 18, 24
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+ vcipher 19, 19, 24
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+ vcipher 20, 20, 24
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+ vcipher 21, 21, 24
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+ vcipher 22, 22, 24
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+
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+ vcipher 15, 15, 25
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+ vcipher 16, 16, 25
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+ vcipher 17, 17, 25
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+ vcipher 18, 18, 25
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+ vcipher 19, 19, 25
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+ vcipher 20, 20, 25
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+ vcipher 21, 21, 25
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+ vcipher 22, 22, 25
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+
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+ vcipher 15, 15, 26
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+ vcipher 16, 16, 26
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+ vcipher 17, 17, 26
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+ vcipher 18, 18, 26
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+ vcipher 19, 19, 26
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+ vcipher 20, 20, 26
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+ vcipher 21, 21, 26
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+ vcipher 22, 22, 26
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+
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+ xxlor 23+32, 5, 5
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+ xxlor 24+32, 6, 6
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+ xxlor 25+32, 7, 7
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+ xxlor 26+32, 8, 8
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+
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+ vcipher 15, 15, 23
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+ vcipher 16, 16, 23
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+ vcipher 17, 17, 23
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+ vcipher 18, 18, 23
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+ vcipher 19, 19, 23
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+ vcipher 20, 20, 23
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+ vcipher 21, 21, 23
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+ vcipher 22, 22, 23
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+
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+ vcipher 15, 15, 24
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+ vcipher 16, 16, 24
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+ vcipher 17, 17, 24
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+ vcipher 18, 18, 24
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+ vcipher 19, 19, 24
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+ vcipher 20, 20, 24
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+ vcipher 21, 21, 24
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+ vcipher 22, 22, 24
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+
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+ vcipher 15, 15, 25
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+ vcipher 16, 16, 25
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+ vcipher 17, 17, 25
|
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+ vcipher 18, 18, 25
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+ vcipher 19, 19, 25
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+ vcipher 20, 20, 25
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+ vcipher 21, 21, 25
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+ vcipher 22, 22, 25
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+
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+ vcipher 15, 15, 26
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+ vcipher 16, 16, 26
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+ vcipher 17, 17, 26
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+ vcipher 18, 18, 26
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+ vcipher 19, 19, 26
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+ vcipher 20, 20, 26
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+ vcipher 21, 21, 26
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+ vcipher 22, 22, 26
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+
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+ xxlor 23+32, 9, 9
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+ vcipher 15, 15, 23
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+ vcipher 16, 16, 23
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+ vcipher 17, 17, 23
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+ vcipher 18, 18, 23
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+ vcipher 19, 19, 23
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+ vcipher 20, 20, 23
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+ vcipher 21, 21, 23
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+ vcipher 22, 22, 23
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+.endm
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+
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+#
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+# Compute 4x hash values based on Karatsuba method.
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+#
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+ppc_aes_gcm_ghash:
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+ vxor 15, 15, 0
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+
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+ xxlxor 29, 29, 29
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+
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+ vpmsumd 23, 12, 15 # H4.L * X.L
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+ vpmsumd 24, 9, 16
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+ vpmsumd 25, 6, 17
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+ vpmsumd 26, 3, 18
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+
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+ vxor 23, 23, 24
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+ vxor 23, 23, 25
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+ vxor 23, 23, 26 # L
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+
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+ vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L
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+ vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L
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+ vpmsumd 26, 7, 17
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+ vpmsumd 27, 4, 18
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+
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+ vxor 24, 24, 25
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+ vxor 24, 24, 26
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+ vxor 24, 24, 27 # M
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+
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+ # sum hash and reduction with H Poly
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+ vpmsumd 28, 23, 2 # reduction
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+
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+ xxlor 29+32, 29, 29
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+ vsldoi 26, 24, 29, 8 # mL
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+ vsldoi 29, 29, 24, 8 # mH
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+ vxor 23, 23, 26 # mL + L
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+
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+ vsldoi 23, 23, 23, 8 # swap
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+ vxor 23, 23, 28
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+
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+ vpmsumd 24, 14, 15 # H4.H * X.H
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+ vpmsumd 25, 11, 16
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+ vpmsumd 26, 8, 17
|
|
+ vpmsumd 27, 5, 18
|
|
+
|
|
+ vxor 24, 24, 25
|
|
+ vxor 24, 24, 26
|
|
+ vxor 24, 24, 27
|
|
+
|
|
+ vxor 24, 24, 29
|
|
+
|
|
+ # sum hash and reduction with H Poly
|
|
+ vsldoi 27, 23, 23, 8 # swap
|
|
+ vpmsumd 23, 23, 2
|
|
+ vxor 27, 27, 24
|
|
+ vxor 23, 23, 27
|
|
+
|
|
+ xxlor 32, 23+32, 23+32 # update hash
|
|
+
|
|
+ blr
|
|
+
|
|
+#
|
|
+# Combine two 4x ghash
|
|
+# v15 - v22 - input blocks
|
|
+#
|
|
+.macro ppc_aes_gcm_ghash2_4x
|
|
+ # first 4x hash
|
|
+ vxor 15, 15, 0 # Xi + X
|
|
+
|
|
+ xxlxor 29, 29, 29
|
|
+
|
|
+ vpmsumd 23, 12, 15 # H4.L * X.L
|
|
+ vpmsumd 24, 9, 16
|
|
+ vpmsumd 25, 6, 17
|
|
+ vpmsumd 26, 3, 18
|
|
+
|
|
+ vxor 23, 23, 24
|
|
+ vxor 23, 23, 25
|
|
+ vxor 23, 23, 26 # L
|
|
+
|
|
+ vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L
|
|
+ vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L
|
|
+ vpmsumd 26, 7, 17
|
|
+ vpmsumd 27, 4, 18
|
|
+
|
|
+ vxor 24, 24, 25
|
|
+ vxor 24, 24, 26
|
|
+
|
|
+ # sum hash and reduction with H Poly
|
|
+ vpmsumd 28, 23, 2 # reduction
|
|
+
|
|
+ xxlor 29+32, 29, 29
|
|
+
|
|
+ vxor 24, 24, 27 # M
|
|
+ vsldoi 26, 24, 29, 8 # mL
|
|
+ vsldoi 29, 29, 24, 8 # mH
|
|
+ vxor 23, 23, 26 # mL + L
|
|
+
|
|
+ vsldoi 23, 23, 23, 8 # swap
|
|
+ vxor 23, 23, 28
|
|
+
|
|
+ vpmsumd 24, 14, 15 # H4.H * X.H
|
|
+ vpmsumd 25, 11, 16
|
|
+ vpmsumd 26, 8, 17
|
|
+ vpmsumd 27, 5, 18
|
|
+
|
|
+ vxor 24, 24, 25
|
|
+ vxor 24, 24, 26
|
|
+ vxor 24, 24, 27 # H
|
|
+
|
|
+ vxor 24, 24, 29 # H + mH
|
|
+
|
|
+ # sum hash and reduction with H Poly
|
|
+ vsldoi 27, 23, 23, 8 # swap
|
|
+ vpmsumd 23, 23, 2
|
|
+ vxor 27, 27, 24
|
|
+ vxor 27, 23, 27 # 1st Xi
|
|
+
|
|
+ # 2nd 4x hash
|
|
+ vpmsumd 24, 9, 20
|
|
+ vpmsumd 25, 6, 21
|
|
+ vpmsumd 26, 3, 22
|
|
+ vxor 19, 19, 27 # Xi + X
|
|
+ vpmsumd 23, 12, 19 # H4.L * X.L
|
|
+
|
|
+ vxor 23, 23, 24
|
|
+ vxor 23, 23, 25
|
|
+ vxor 23, 23, 26 # L
|
|
+
|
|
+ vpmsumd 24, 13, 19 # H4.L * X.H + H4.H * X.L
|
|
+ vpmsumd 25, 10, 20 # H3.L * X1.H + H3.H * X1.L
|
|
+ vpmsumd 26, 7, 21
|
|
+ vpmsumd 27, 4, 22
|
|
+
|
|
+ vxor 24, 24, 25
|
|
+ vxor 24, 24, 26
|
|
+
|
|
+ # sum hash and reduction with H Poly
|
|
+ vpmsumd 28, 23, 2 # reduction
|
|
+
|
|
+ xxlor 29+32, 29, 29
|
|
+
|
|
+ vxor 24, 24, 27 # M
|
|
+ vsldoi 26, 24, 29, 8 # mL
|
|
+ vsldoi 29, 29, 24, 8 # mH
|
|
+ vxor 23, 23, 26 # mL + L
|
|
+
|
|
+ vsldoi 23, 23, 23, 8 # swap
|
|
+ vxor 23, 23, 28
|
|
+
|
|
+ vpmsumd 24, 14, 19 # H4.H * X.H
|
|
+ vpmsumd 25, 11, 20
|
|
+ vpmsumd 26, 8, 21
|
|
+ vpmsumd 27, 5, 22
|
|
+
|
|
+ vxor 24, 24, 25
|
|
+ vxor 24, 24, 26
|
|
+ vxor 24, 24, 27 # H
|
|
+
|
|
+ vxor 24, 24, 29 # H + mH
|
|
+
|
|
+ # sum hash and reduction with H Poly
|
|
+ vsldoi 27, 23, 23, 8 # swap
|
|
+ vpmsumd 23, 23, 2
|
|
+ vxor 27, 27, 24
|
|
+ vxor 23, 23, 27
|
|
+
|
|
+ xxlor 32, 23+32, 23+32 # update hash
|
|
+
|
|
+.endm
|
|
+
|
|
+#
|
|
+# Compute update single hash
|
|
+#
|
|
+.macro ppc_update_hash_1x
|
|
+ vxor 28, 28, 0
|
|
+
|
|
+ vxor 19, 19, 19
|
|
+
|
|
+ vpmsumd 22, 3, 28 # L
|
|
+ vpmsumd 23, 4, 28 # M
|
|
+ vpmsumd 24, 5, 28 # H
|
|
+
|
|
+ vpmsumd 27, 22, 2 # reduction
|
|
+
|
|
+ vsldoi 25, 23, 19, 8 # mL
|
|
+ vsldoi 26, 19, 23, 8 # mH
|
|
+ vxor 22, 22, 25 # LL + LL
|
|
+ vxor 24, 24, 26 # HH + HH
|
|
+
|
|
+ vsldoi 22, 22, 22, 8 # swap
|
|
+ vxor 22, 22, 27
|
|
+
|
|
+ vsldoi 20, 22, 22, 8 # swap
|
|
+ vpmsumd 22, 22, 2 # reduction
|
|
+ vxor 20, 20, 24
|
|
+ vxor 22, 22, 20
|
|
+
|
|
+ vmr 0, 22 # update hash
|
|
+
|
|
+.endm
|
|
+
|
|
+#
|
|
+# ppc_aes_gcm_encrypt (const void *inp, void *out, size_t len,
|
|
+# const AES_KEY *key, unsigned char iv[16],
|
|
+# void *Xip);
|
|
+#
|
|
+# r3 - inp
|
|
+# r4 - out
|
|
+# r5 - len
|
|
+# r6 - AES round keys
|
|
+# r7 - iv
|
|
+# r8 - Xi, HPoli, hash keys
|
|
+#
|
|
+.global ppc_aes_gcm_encrypt
|
|
+.align 5
|
|
+ppc_aes_gcm_encrypt:
|
|
+_ppc_aes_gcm_encrypt:
|
|
+
|
|
+ stdu 1,-512(1)
|
|
+ mflr 0
|
|
+
|
|
+ std 14,112(1)
|
|
+ std 15,120(1)
|
|
+ std 16,128(1)
|
|
+ std 17,136(1)
|
|
+ std 18,144(1)
|
|
+ std 19,152(1)
|
|
+ std 20,160(1)
|
|
+ std 21,168(1)
|
|
+ li 9, 256
|
|
+ stvx 20, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 21, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 22, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 23, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 24, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 25, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 26, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 27, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 28, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 29, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 30, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 31, 9, 1
|
|
+ std 0, 528(1)
|
|
+
|
|
+ # Load Xi
|
|
+ lxvb16x 32, 0, 8 # load Xi
|
|
+
|
|
+ # load Hash - h^4, h^3, h^2, h
|
|
+ li 10, 32
|
|
+ lxvd2x 2+32, 10, 8 # H Poli
|
|
+ li 10, 48
|
|
+ lxvd2x 3+32, 10, 8 # Hl
|
|
+ li 10, 64
|
|
+ lxvd2x 4+32, 10, 8 # H
|
|
+ li 10, 80
|
|
+ lxvd2x 5+32, 10, 8 # Hh
|
|
+
|
|
+ li 10, 96
|
|
+ lxvd2x 6+32, 10, 8 # H^2l
|
|
+ li 10, 112
|
|
+ lxvd2x 7+32, 10, 8 # H^2
|
|
+ li 10, 128
|
|
+ lxvd2x 8+32, 10, 8 # H^2h
|
|
+
|
|
+ li 10, 144
|
|
+ lxvd2x 9+32, 10, 8 # H^3l
|
|
+ li 10, 160
|
|
+ lxvd2x 10+32, 10, 8 # H^3
|
|
+ li 10, 176
|
|
+ lxvd2x 11+32, 10, 8 # H^3h
|
|
+
|
|
+ li 10, 192
|
|
+ lxvd2x 12+32, 10, 8 # H^4l
|
|
+ li 10, 208
|
|
+ lxvd2x 13+32, 10, 8 # H^4
|
|
+ li 10, 224
|
|
+ lxvd2x 14+32, 10, 8 # H^4h
|
|
+
|
|
+ # initialize ICB: GHASH( IV ), IV - r7
|
|
+ lxvb16x 30+32, 0, 7 # load IV - v30
|
|
+
|
|
+ mr 12, 5 # length
|
|
+ li 11, 0 # block index
|
|
+
|
|
+ # counter 1
|
|
+ vxor 31, 31, 31
|
|
+ vspltisb 22, 1
|
|
+ vsldoi 31, 31, 22,1 # counter 1
|
|
+
|
|
+ # load round key to VSR
|
|
+ lxv 0, 0(6)
|
|
+ lxv 1, 0x10(6)
|
|
+ lxv 2, 0x20(6)
|
|
+ lxv 3, 0x30(6)
|
|
+ lxv 4, 0x40(6)
|
|
+ lxv 5, 0x50(6)
|
|
+ lxv 6, 0x60(6)
|
|
+ lxv 7, 0x70(6)
|
|
+ lxv 8, 0x80(6)
|
|
+ lxv 9, 0x90(6)
|
|
+ lxv 10, 0xa0(6)
|
|
+
|
|
+ # load rounds - 10 (128), 12 (192), 14 (256)
|
|
+ lwz 9,240(6)
|
|
+
|
|
+ #
|
|
+ # vxor state, state, w # addroundkey
|
|
+ xxlor 32+29, 0, 0
|
|
+ vxor 15, 30, 29 # IV + round key - add round key 0
|
|
+
|
|
+ cmpdi 9, 10
|
|
+ beq Loop_aes_gcm_8x
|
|
+
|
|
+ # load 2 more round keys (v11, v12)
|
|
+ lxv 11, 0xb0(6)
|
|
+ lxv 12, 0xc0(6)
|
|
+
|
|
+ cmpdi 9, 12
|
|
+ beq Loop_aes_gcm_8x
|
|
+
|
|
+ # load 2 more round keys (v11, v12, v13, v14)
|
|
+ lxv 13, 0xd0(6)
|
|
+ lxv 14, 0xe0(6)
|
|
+ cmpdi 9, 14
|
|
+ beq Loop_aes_gcm_8x
|
|
+
|
|
+ b aes_gcm_out
|
|
+
|
|
+.align 5
|
|
+Loop_aes_gcm_8x:
|
|
+ mr 14, 3
|
|
+ mr 9, 4
|
|
+
|
|
+ # n blcoks
|
|
+ li 10, 128
|
|
+ divdu 10, 5, 10 # n 128 bytes-blocks
|
|
+ cmpdi 10, 0
|
|
+ beq Loop_last_block
|
|
+
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vxor 16, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 17, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 18, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 19, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 20, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 21, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 22, 30, 29
|
|
+
|
|
+ mtctr 10
|
|
+
|
|
+ li 15, 16
|
|
+ li 16, 32
|
|
+ li 17, 48
|
|
+ li 18, 64
|
|
+ li 19, 80
|
|
+ li 20, 96
|
|
+ li 21, 112
|
|
+
|
|
+ lwz 10, 240(6)
|
|
+
|
|
+Loop_8x_block:
|
|
+
|
|
+ lxvb16x 15, 0, 14 # load block
|
|
+ lxvb16x 16, 15, 14 # load block
|
|
+ lxvb16x 17, 16, 14 # load block
|
|
+ lxvb16x 18, 17, 14 # load block
|
|
+ lxvb16x 19, 18, 14 # load block
|
|
+ lxvb16x 20, 19, 14 # load block
|
|
+ lxvb16x 21, 20, 14 # load block
|
|
+ lxvb16x 22, 21, 14 # load block
|
|
+ addi 14, 14, 128
|
|
+
|
|
+ Loop_aes_middle8x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_next_ghash
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 16, 16, 23
|
|
+ vcipher 17, 17, 23
|
|
+ vcipher 18, 18, 23
|
|
+ vcipher 19, 19, 23
|
|
+ vcipher 20, 20, 23
|
|
+ vcipher 21, 21, 23
|
|
+ vcipher 22, 22, 23
|
|
+
|
|
+ vcipher 15, 15, 24
|
|
+ vcipher 16, 16, 24
|
|
+ vcipher 17, 17, 24
|
|
+ vcipher 18, 18, 24
|
|
+ vcipher 19, 19, 24
|
|
+ vcipher 20, 20, 24
|
|
+ vcipher 21, 21, 24
|
|
+ vcipher 22, 22, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_next_ghash
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 16, 16, 23
|
|
+ vcipher 17, 17, 23
|
|
+ vcipher 18, 18, 23
|
|
+ vcipher 19, 19, 23
|
|
+ vcipher 20, 20, 23
|
|
+ vcipher 21, 21, 23
|
|
+ vcipher 22, 22, 23
|
|
+
|
|
+ vcipher 15, 15, 24
|
|
+ vcipher 16, 16, 24
|
|
+ vcipher 17, 17, 24
|
|
+ vcipher 18, 18, 24
|
|
+ vcipher 19, 19, 24
|
|
+ vcipher 20, 20, 24
|
|
+ vcipher 21, 21, 24
|
|
+ vcipher 22, 22, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_next_ghash
|
|
+ b aes_gcm_out
|
|
+
|
|
+Do_next_ghash:
|
|
+
|
|
+ #
|
|
+ # last round
|
|
+ vcipherlast 15, 15, 23
|
|
+ vcipherlast 16, 16, 23
|
|
+
|
|
+ xxlxor 47, 47, 15
|
|
+ stxvb16x 47, 0, 9 # store output
|
|
+ xxlxor 48, 48, 16
|
|
+ stxvb16x 48, 15, 9 # store output
|
|
+
|
|
+ vcipherlast 17, 17, 23
|
|
+ vcipherlast 18, 18, 23
|
|
+
|
|
+ xxlxor 49, 49, 17
|
|
+ stxvb16x 49, 16, 9 # store output
|
|
+ xxlxor 50, 50, 18
|
|
+ stxvb16x 50, 17, 9 # store output
|
|
+
|
|
+ vcipherlast 19, 19, 23
|
|
+ vcipherlast 20, 20, 23
|
|
+
|
|
+ xxlxor 51, 51, 19
|
|
+ stxvb16x 51, 18, 9 # store output
|
|
+ xxlxor 52, 52, 20
|
|
+ stxvb16x 52, 19, 9 # store output
|
|
+
|
|
+ vcipherlast 21, 21, 23
|
|
+ vcipherlast 22, 22, 23
|
|
+
|
|
+ xxlxor 53, 53, 21
|
|
+ stxvb16x 53, 20, 9 # store output
|
|
+ xxlxor 54, 54, 22
|
|
+ stxvb16x 54, 21, 9 # store output
|
|
+
|
|
+ addi 9, 9, 128
|
|
+
|
|
+ # ghash here
|
|
+ ppc_aes_gcm_ghash2_4x
|
|
+
|
|
+ xxlor 27+32, 0, 0
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vmr 29, 30
|
|
+ vxor 15, 30, 27 # add round key
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 16, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 17, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 18, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 19, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 20, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 21, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 22, 30, 27
|
|
+
|
|
+ addi 12, 12, -128
|
|
+ addi 11, 11, 128
|
|
+
|
|
+ bdnz Loop_8x_block
|
|
+
|
|
+ vmr 30, 29
|
|
+
|
|
+Loop_last_block:
|
|
+ cmpdi 12, 0
|
|
+ beq aes_gcm_out
|
|
+
|
|
+ # loop last few blocks
|
|
+ li 10, 16
|
|
+ divdu 10, 12, 10
|
|
+
|
|
+ mtctr 10
|
|
+
|
|
+ lwz 10, 240(6)
|
|
+
|
|
+ cmpdi 12, 16
|
|
+ blt Final_block
|
|
+
|
|
+.macro Loop_aes_middle_1x
|
|
+ xxlor 19+32, 1, 1
|
|
+ xxlor 20+32, 2, 2
|
|
+ xxlor 21+32, 3, 3
|
|
+ xxlor 22+32, 4, 4
|
|
+
|
|
+ vcipher 15, 15, 19
|
|
+ vcipher 15, 15, 20
|
|
+ vcipher 15, 15, 21
|
|
+ vcipher 15, 15, 22
|
|
+
|
|
+ xxlor 19+32, 5, 5
|
|
+ xxlor 20+32, 6, 6
|
|
+ xxlor 21+32, 7, 7
|
|
+ xxlor 22+32, 8, 8
|
|
+
|
|
+ vcipher 15, 15, 19
|
|
+ vcipher 15, 15, 20
|
|
+ vcipher 15, 15, 21
|
|
+ vcipher 15, 15, 22
|
|
+
|
|
+ xxlor 19+32, 9, 9
|
|
+ vcipher 15, 15, 19
|
|
+.endm
|
|
+
|
|
+Next_rem_block:
|
|
+ lxvb16x 15, 0, 14 # load block
|
|
+
|
|
+ Loop_aes_middle_1x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_next_1x
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_next_1x
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_next_1x
|
|
+
|
|
+Do_next_1x:
|
|
+ vcipherlast 15, 15, 23
|
|
+
|
|
+ xxlxor 47, 47, 15
|
|
+ stxvb16x 47, 0, 9 # store output
|
|
+ addi 14, 14, 16
|
|
+ addi 9, 9, 16
|
|
+
|
|
+ vmr 28, 15
|
|
+ ppc_update_hash_1x
|
|
+
|
|
+ addi 12, 12, -16
|
|
+ addi 11, 11, 16
|
|
+ xxlor 19+32, 0, 0
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vxor 15, 30, 19 # add round key
|
|
+
|
|
+ bdnz Next_rem_block
|
|
+
|
|
+ cmpdi 12, 0
|
|
+ beq aes_gcm_out
|
|
+
|
|
+Final_block:
|
|
+ Loop_aes_middle_1x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_final_1x
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_final_1x
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_final_1x
|
|
+
|
|
+Do_final_1x:
|
|
+ vcipherlast 15, 15, 23
|
|
+
|
|
+ lxvb16x 15, 0, 14 # load last block
|
|
+ xxlxor 47, 47, 15
|
|
+
|
|
+ # create partial block mask
|
|
+ li 15, 16
|
|
+ sub 15, 15, 12 # index to the mask
|
|
+
|
|
+ vspltisb 16, -1 # first 16 bytes - 0xffff...ff
|
|
+ vspltisb 17, 0 # second 16 bytes - 0x0000...00
|
|
+ li 10, 192
|
|
+ stvx 16, 10, 1
|
|
+ addi 10, 10, 16
|
|
+ stvx 17, 10, 1
|
|
+
|
|
+ addi 10, 1, 192
|
|
+ lxvb16x 16, 15, 10 # load partial block mask
|
|
+ xxland 47, 47, 16
|
|
+
|
|
+ vmr 28, 15
|
|
+ ppc_update_hash_1x
|
|
+
|
|
+ # * should store only the remaining bytes.
|
|
+ bl Write_partial_block
|
|
+
|
|
+ b aes_gcm_out
|
|
+
|
|
+#
|
|
+# Write partial block
|
|
+# r9 - output
|
|
+# r12 - remaining bytes
|
|
+# v15 - partial input data
|
|
+#
|
|
+Write_partial_block:
|
|
+ li 10, 192
|
|
+ stxvb16x 15+32, 10, 1 # last block
|
|
+
|
|
+ #add 10, 9, 11 # Output
|
|
+ addi 10, 9, -1
|
|
+ addi 16, 1, 191
|
|
+
|
|
+ mtctr 12 # remaining bytes
|
|
+ li 15, 0
|
|
+
|
|
+Write_last_byte:
|
|
+ lbzu 14, 1(16)
|
|
+ stbu 14, 1(10)
|
|
+ bdnz Write_last_byte
|
|
+ blr
|
|
+
|
|
+aes_gcm_out:
|
|
+ # out = state
|
|
+ stxvb16x 32, 0, 8 # write out Xi
|
|
+ add 3, 11, 12 # return count
|
|
+
|
|
+ li 9, 256
|
|
+ lvx 20, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 21, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 22, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 23, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 24, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 25, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 26, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 27, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 28, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 29, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 30, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ lvx 31, 9, 1
|
|
+
|
|
+ ld 0, 528(1)
|
|
+ ld 14,112(1)
|
|
+ ld 15,120(1)
|
|
+ ld 16,128(1)
|
|
+ ld 17,136(1)
|
|
+ ld 18,144(1)
|
|
+ ld 19,152(1)
|
|
+ ld 20,160(1)
|
|
+ ld 21,168(1)
|
|
+
|
|
+ mtlr 0
|
|
+ addi 1, 1, 512
|
|
+ blr
|
|
+
|
|
+#
|
|
+# 8x Decrypt
|
|
+#
|
|
+.global ppc_aes_gcm_decrypt
|
|
+.align 5
|
|
+ppc_aes_gcm_decrypt:
|
|
+_ppc_aes_gcm_decrypt:
|
|
+
|
|
+ stdu 1,-512(1)
|
|
+ mflr 0
|
|
+
|
|
+ std 14,112(1)
|
|
+ std 15,120(1)
|
|
+ std 16,128(1)
|
|
+ std 17,136(1)
|
|
+ std 18,144(1)
|
|
+ std 19,152(1)
|
|
+ std 20,160(1)
|
|
+ std 21,168(1)
|
|
+ li 9, 256
|
|
+ stvx 20, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 21, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 22, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 23, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 24, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 25, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 26, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 27, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 28, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 29, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 30, 9, 1
|
|
+ addi 9, 9, 16
|
|
+ stvx 31, 9, 1
|
|
+ std 0, 528(1)
|
|
+
|
|
+ # Load Xi
|
|
+ lxvb16x 32, 0, 8 # load Xi
|
|
+
|
|
+ # load Hash - h^4, h^3, h^2, h
|
|
+ li 10, 32
|
|
+ lxvd2x 2+32, 10, 8 # H Poli
|
|
+ li 10, 48
|
|
+ lxvd2x 3+32, 10, 8 # Hl
|
|
+ li 10, 64
|
|
+ lxvd2x 4+32, 10, 8 # H
|
|
+ li 10, 80
|
|
+ lxvd2x 5+32, 10, 8 # Hh
|
|
+
|
|
+ li 10, 96
|
|
+ lxvd2x 6+32, 10, 8 # H^2l
|
|
+ li 10, 112
|
|
+ lxvd2x 7+32, 10, 8 # H^2
|
|
+ li 10, 128
|
|
+ lxvd2x 8+32, 10, 8 # H^2h
|
|
+
|
|
+ li 10, 144
|
|
+ lxvd2x 9+32, 10, 8 # H^3l
|
|
+ li 10, 160
|
|
+ lxvd2x 10+32, 10, 8 # H^3
|
|
+ li 10, 176
|
|
+ lxvd2x 11+32, 10, 8 # H^3h
|
|
+
|
|
+ li 10, 192
|
|
+ lxvd2x 12+32, 10, 8 # H^4l
|
|
+ li 10, 208
|
|
+ lxvd2x 13+32, 10, 8 # H^4
|
|
+ li 10, 224
|
|
+ lxvd2x 14+32, 10, 8 # H^4h
|
|
+
|
|
+ # initialize ICB: GHASH( IV ), IV - r7
|
|
+ lxvb16x 30+32, 0, 7 # load IV - v30
|
|
+
|
|
+ mr 12, 5 # length
|
|
+ li 11, 0 # block index
|
|
+
|
|
+ # counter 1
|
|
+ vxor 31, 31, 31
|
|
+ vspltisb 22, 1
|
|
+ vsldoi 31, 31, 22,1 # counter 1
|
|
+
|
|
+ # load round key to VSR
|
|
+ lxv 0, 0(6)
|
|
+ lxv 1, 0x10(6)
|
|
+ lxv 2, 0x20(6)
|
|
+ lxv 3, 0x30(6)
|
|
+ lxv 4, 0x40(6)
|
|
+ lxv 5, 0x50(6)
|
|
+ lxv 6, 0x60(6)
|
|
+ lxv 7, 0x70(6)
|
|
+ lxv 8, 0x80(6)
|
|
+ lxv 9, 0x90(6)
|
|
+ lxv 10, 0xa0(6)
|
|
+
|
|
+ # load rounds - 10 (128), 12 (192), 14 (256)
|
|
+ lwz 9,240(6)
|
|
+
|
|
+ #
|
|
+ # vxor state, state, w # addroundkey
|
|
+ xxlor 32+29, 0, 0
|
|
+ vxor 15, 30, 29 # IV + round key - add round key 0
|
|
+
|
|
+ cmpdi 9, 10
|
|
+ beq Loop_aes_gcm_8x_dec
|
|
+
|
|
+ # load 2 more round keys (v11, v12)
|
|
+ lxv 11, 0xb0(6)
|
|
+ lxv 12, 0xc0(6)
|
|
+
|
|
+ cmpdi 9, 12
|
|
+ beq Loop_aes_gcm_8x_dec
|
|
+
|
|
+ # load 2 more round keys (v11, v12, v13, v14)
|
|
+ lxv 13, 0xd0(6)
|
|
+ lxv 14, 0xe0(6)
|
|
+ cmpdi 9, 14
|
|
+ beq Loop_aes_gcm_8x_dec
|
|
+
|
|
+ b aes_gcm_out
|
|
+
|
|
+.align 5
|
|
+Loop_aes_gcm_8x_dec:
|
|
+ mr 14, 3
|
|
+ mr 9, 4
|
|
+
|
|
+ # n blcoks
|
|
+ li 10, 128
|
|
+ divdu 10, 5, 10 # n 128 bytes-blocks
|
|
+ cmpdi 10, 0
|
|
+ beq Loop_last_block_dec
|
|
+
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vxor 16, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 17, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 18, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 19, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 20, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 21, 30, 29
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 22, 30, 29
|
|
+
|
|
+ mtctr 10
|
|
+
|
|
+ li 15, 16
|
|
+ li 16, 32
|
|
+ li 17, 48
|
|
+ li 18, 64
|
|
+ li 19, 80
|
|
+ li 20, 96
|
|
+ li 21, 112
|
|
+
|
|
+ lwz 10, 240(6)
|
|
+
|
|
+Loop_8x_block_dec:
|
|
+
|
|
+ lxvb16x 15, 0, 14 # load block
|
|
+ lxvb16x 16, 15, 14 # load block
|
|
+ lxvb16x 17, 16, 14 # load block
|
|
+ lxvb16x 18, 17, 14 # load block
|
|
+ lxvb16x 19, 18, 14 # load block
|
|
+ lxvb16x 20, 19, 14 # load block
|
|
+ lxvb16x 21, 20, 14 # load block
|
|
+ lxvb16x 22, 21, 14 # load block
|
|
+ addi 14, 14, 128
|
|
+
|
|
+ Loop_aes_middle8x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_last_aes_dec
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 16, 16, 23
|
|
+ vcipher 17, 17, 23
|
|
+ vcipher 18, 18, 23
|
|
+ vcipher 19, 19, 23
|
|
+ vcipher 20, 20, 23
|
|
+ vcipher 21, 21, 23
|
|
+ vcipher 22, 22, 23
|
|
+
|
|
+ vcipher 15, 15, 24
|
|
+ vcipher 16, 16, 24
|
|
+ vcipher 17, 17, 24
|
|
+ vcipher 18, 18, 24
|
|
+ vcipher 19, 19, 24
|
|
+ vcipher 20, 20, 24
|
|
+ vcipher 21, 21, 24
|
|
+ vcipher 22, 22, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_last_aes_dec
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 16, 16, 23
|
|
+ vcipher 17, 17, 23
|
|
+ vcipher 18, 18, 23
|
|
+ vcipher 19, 19, 23
|
|
+ vcipher 20, 20, 23
|
|
+ vcipher 21, 21, 23
|
|
+ vcipher 22, 22, 23
|
|
+
|
|
+ vcipher 15, 15, 24
|
|
+ vcipher 16, 16, 24
|
|
+ vcipher 17, 17, 24
|
|
+ vcipher 18, 18, 24
|
|
+ vcipher 19, 19, 24
|
|
+ vcipher 20, 20, 24
|
|
+ vcipher 21, 21, 24
|
|
+ vcipher 22, 22, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_last_aes_dec
|
|
+ b aes_gcm_out
|
|
+
|
|
+Do_last_aes_dec:
|
|
+
|
|
+ #
|
|
+ # last round
|
|
+ vcipherlast 15, 15, 23
|
|
+ vcipherlast 16, 16, 23
|
|
+
|
|
+ xxlxor 47, 47, 15
|
|
+ stxvb16x 47, 0, 9 # store output
|
|
+ xxlxor 48, 48, 16
|
|
+ stxvb16x 48, 15, 9 # store output
|
|
+
|
|
+ vcipherlast 17, 17, 23
|
|
+ vcipherlast 18, 18, 23
|
|
+
|
|
+ xxlxor 49, 49, 17
|
|
+ stxvb16x 49, 16, 9 # store output
|
|
+ xxlxor 50, 50, 18
|
|
+ stxvb16x 50, 17, 9 # store output
|
|
+
|
|
+ vcipherlast 19, 19, 23
|
|
+ vcipherlast 20, 20, 23
|
|
+
|
|
+ xxlxor 51, 51, 19
|
|
+ stxvb16x 51, 18, 9 # store output
|
|
+ xxlxor 52, 52, 20
|
|
+ stxvb16x 52, 19, 9 # store output
|
|
+
|
|
+ vcipherlast 21, 21, 23
|
|
+ vcipherlast 22, 22, 23
|
|
+
|
|
+ xxlxor 53, 53, 21
|
|
+ stxvb16x 53, 20, 9 # store output
|
|
+ xxlxor 54, 54, 22
|
|
+ stxvb16x 54, 21, 9 # store output
|
|
+
|
|
+ addi 9, 9, 128
|
|
+
|
|
+ xxlor 15+32, 15, 15
|
|
+ xxlor 16+32, 16, 16
|
|
+ xxlor 17+32, 17, 17
|
|
+ xxlor 18+32, 18, 18
|
|
+ xxlor 19+32, 19, 19
|
|
+ xxlor 20+32, 20, 20
|
|
+ xxlor 21+32, 21, 21
|
|
+ xxlor 22+32, 22, 22
|
|
+
|
|
+ # ghash here
|
|
+ ppc_aes_gcm_ghash2_4x
|
|
+
|
|
+ xxlor 27+32, 0, 0
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vmr 29, 30
|
|
+ vxor 15, 30, 27 # add round key
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 16, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 17, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 18, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 19, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 20, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 21, 30, 27
|
|
+ vaddudm 30, 30, 31
|
|
+ vxor 22, 30, 27
|
|
+ addi 12, 12, -128
|
|
+ addi 11, 11, 128
|
|
+
|
|
+ bdnz Loop_8x_block_dec
|
|
+
|
|
+ vmr 30, 29
|
|
+
|
|
+Loop_last_block_dec:
|
|
+ cmpdi 12, 0
|
|
+ beq aes_gcm_out
|
|
+
|
|
+ # loop last few blocks
|
|
+ li 10, 16
|
|
+ divdu 10, 12, 10
|
|
+
|
|
+ mtctr 10
|
|
+
|
|
+ lwz 10,240(6)
|
|
+
|
|
+ cmpdi 12, 16
|
|
+ blt Final_block_dec
|
|
+
|
|
+Next_rem_block_dec:
|
|
+ lxvb16x 15, 0, 14 # load block
|
|
+
|
|
+ Loop_aes_middle_1x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_next_1x_dec
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_next_1x_dec
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_next_1x_dec
|
|
+
|
|
+Do_next_1x_dec:
|
|
+ vcipherlast 15, 15, 23
|
|
+
|
|
+ xxlxor 47, 47, 15
|
|
+ stxvb16x 47, 0, 9 # store output
|
|
+ addi 14, 14, 16
|
|
+ addi 9, 9, 16
|
|
+
|
|
+ xxlor 28+32, 15, 15
|
|
+ ppc_update_hash_1x
|
|
+
|
|
+ addi 12, 12, -16
|
|
+ addi 11, 11, 16
|
|
+ xxlor 19+32, 0, 0
|
|
+ vaddudm 30, 30, 31 # IV + counter
|
|
+ vxor 15, 30, 19 # add round key
|
|
+
|
|
+ bdnz Next_rem_block_dec
|
|
+
|
|
+ cmpdi 12, 0
|
|
+ beq aes_gcm_out
|
|
+
|
|
+Final_block_dec:
|
|
+ Loop_aes_middle_1x
|
|
+
|
|
+ xxlor 23+32, 10, 10
|
|
+
|
|
+ cmpdi 10, 10
|
|
+ beq Do_final_1x_dec
|
|
+
|
|
+ # 192 bits
|
|
+ xxlor 24+32, 11, 11
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 12, 12
|
|
+
|
|
+ cmpdi 10, 12
|
|
+ beq Do_final_1x_dec
|
|
+
|
|
+ # 256 bits
|
|
+ xxlor 24+32, 13, 13
|
|
+
|
|
+ vcipher 15, 15, 23
|
|
+ vcipher 15, 15, 24
|
|
+
|
|
+ xxlor 23+32, 14, 14
|
|
+
|
|
+ cmpdi 10, 14
|
|
+ beq Do_final_1x_dec
|
|
+
|
|
+Do_final_1x_dec:
|
|
+ vcipherlast 15, 15, 23
|
|
+
|
|
+ lxvb16x 15, 0, 14 # load block
|
|
+ xxlxor 47, 47, 15
|
|
+
|
|
+ # create partial block mask
|
|
+ li 15, 16
|
|
+ sub 15, 15, 12 # index to the mask
|
|
+
|
|
+ vspltisb 16, -1 # first 16 bytes - 0xffff...ff
|
|
+ vspltisb 17, 0 # second 16 bytes - 0x0000...00
|
|
+ li 10, 192
|
|
+ stvx 16, 10, 1
|
|
+ addi 10, 10, 16
|
|
+ stvx 17, 10, 1
|
|
+
|
|
+ addi 10, 1, 192
|
|
+ lxvb16x 16, 15, 10 # load block mask
|
|
+ xxland 47, 47, 16
|
|
+
|
|
+ xxlor 28+32, 15, 15
|
|
+ ppc_update_hash_1x
|
|
+
|
|
+ # * should store only the remaining bytes.
|
|
+ bl Write_partial_block
|
|
+
|
|
+ b aes_gcm_out
|
|
+
|
|
+
|
|
+___
|
|
+
|
|
+foreach (split("\n",$code)) {
|
|
+ s/\`([^\`]*)\`/eval $1/geo;
|
|
+
|
|
+ if ($flavour =~ /le$/o) { # little-endian
|
|
+ s/le\?//o or
|
|
+ s/be\?/#be#/o;
|
|
+ } else {
|
|
+ s/le\?/#le#/o or
|
|
+ s/be\?//o;
|
|
+ }
|
|
+ print $_,"\n";
|
|
+}
|
|
+
|
|
+close STDOUT or die "error closing STDOUT: $!"; # enforce flush
|
|
--- a/crypto/modes/build.info
|
|
+++ b/crypto/modes/build.info
|
|
@@ -16,6 +16,7 @@ INCLUDE[ghash-sparcv9.o]=..
|
|
GENERATE[ghash-alpha.S]=asm/ghash-alpha.pl $(PERLASM_SCHEME)
|
|
GENERATE[ghash-parisc.s]=asm/ghash-parisc.pl $(PERLASM_SCHEME)
|
|
GENERATE[ghashp8-ppc.s]=asm/ghashp8-ppc.pl $(PERLASM_SCHEME)
|
|
+GENERATE[aes-gcm-ppc.s]=asm/aes-gcm-ppc.pl $(PERLASM_SCHEME)
|
|
GENERATE[ghash-armv4.S]=asm/ghash-armv4.pl $(PERLASM_SCHEME)
|
|
INCLUDE[ghash-armv4.o]=..
|
|
GENERATE[ghashv8-armx.S]=asm/ghashv8-armx.pl $(PERLASM_SCHEME)
|