From patchwork Tue Jun 20 11:07:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1797243 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=m1+WbrWX; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QlkbQ0CMTz20WT for ; Tue, 20 Jun 2023 21:16:18 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qBZDp-0006Ex-B1; Tue, 20 Jun 2023 07:08:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qBZDm-0006Bl-Q7 for qemu-devel@nongnu.org; Tue, 20 Jun 2023 07:08:26 -0400 Received: from mail-ej1-x62e.google.com ([2a00:1450:4864:20::62e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qBZDk-0004Lt-Lc for qemu-devel@nongnu.org; Tue, 20 Jun 2023 07:08:26 -0400 Received: by mail-ej1-x62e.google.com with SMTP id a640c23a62f3a-988c495f35fso235850766b.1 for ; Tue, 20 Jun 2023 04:08:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687259303; x=1689851303; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A7xfy/db8RS4fR9dmE4f+gptt8VWgaldKCFJ1ZLH2+Q=; b=m1+WbrWXfJAGOYrABKYcNAGXNlQA/v/R3Q64WYVpZs1tHV5B8+JOCPBW+vc5ZlcE0K cIVUsCVahhV8pN1WXGTEb4pLCYjf56M/FZ8mIRUIMQKsATNtUX88UcNSJIlCrP4w4Lro Kr7l8PWPvF5XrUsPQNHz3NVQ2kYW4Zb1srCCcJDtAP8hUmP+58bloreYfarCUKD2634O aE+KOwidrwS4y1i4IobjUHwV/26zAHA4IJZg47jxWCQhx6f2nPJtn1P2Tq+jZZi+TEZS biLqsXJD+qM4oRgfXqgyzf0WnGakAs61GGkbyfHD8KLzFUFpaUrrk3jkWWnm/o2nZmN1 bTMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687259303; x=1689851303; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A7xfy/db8RS4fR9dmE4f+gptt8VWgaldKCFJ1ZLH2+Q=; b=hCMAztSnjkq4yIFqrzE+y/sDFdp6yNj0WUeENSKMoqncX0d+eneztbz4cTVn5C3Rb9 YqTKT5y7Uy0yhBVyA8LUQ2QNPDZY6tm7G7k945/jiJNd0jlwoCFz59wt7bjYolbRBVb8 PocOwP6K25F8quK8OxIUgKl84L0YRpuAfd7zI01IbYXuT19HBk5Rysye3LBbH/jcSrmV CVPvHJUzsCleHw5sX6JaRpx4swqypgIDLoN5sfqkciqeqPMfdFMMxFcYF1Lic1wENFL0 suL6zDZbNm0eeKPeAB98aVwq8B5fEJqNgLFMLgzH2eR9vM12z14t/OAF8GDFaraQcXde Sokw== X-Gm-Message-State: AC+VfDxDAPKNO+qzOr2Sm8zDMyXNePt2+B5Z5Gd0B7tutM8YkexGYrJe PTho4LQ+dqtI8p5RQDZrW64ACPskQOca9rPtpkghcdIa X-Google-Smtp-Source: ACHHUZ43y2L3mOTpcbb4dDRgsq0RaEMkt/CwagF7DA2pK3OyAQaYaVSre8pYRRsMu+Gv/leoDM/EMQ== X-Received: by 2002:a17:907:d0f:b0:975:942e:81e7 with SMTP id gn15-20020a1709070d0f00b00975942e81e7mr13199399ejc.37.1687259303361; Tue, 20 Jun 2023 04:08:23 -0700 (PDT) Received: from stoup.lan ([176.176.183.29]) by smtp.gmail.com with ESMTPSA id x17-20020a170906711100b009884f015a44sm1170687ejj.49.2023.06.20.04.08.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jun 2023 04:08:23 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: berrange@redhat.com, qemu-ppc@nongnu.org, qemu-arm@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 16/37] crypto: Add aesenc_MC Date: Tue, 20 Jun 2023 13:07:37 +0200 Message-Id: <20230620110758.787479-17-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230620110758.787479-1-richard.henderson@linaro.org> References: <20230620110758.787479-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::62e; envelope-from=richard.henderson@linaro.org; helo=mail-ej1-x62e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a primitive for MixColumns. Signed-off-by: Richard Henderson Acked-by: Daniel P. Berrangé --- host/include/generic/host/crypto/aes-round.h | 2 + include/crypto/aes-round.h | 18 ++++++ crypto/aes.c | 61 ++++++++++++++++++++ 3 files changed, 81 insertions(+) diff --git a/host/include/generic/host/crypto/aes-round.h b/host/include/generic/host/crypto/aes-round.h index c9b9d732f0..1b82afc629 100644 --- a/host/include/generic/host/crypto/aes-round.h +++ b/host/include/generic/host/crypto/aes-round.h @@ -9,6 +9,8 @@ #define HAVE_AES_ACCEL false #define ATTR_AES_ACCEL +void aesenc_MC_accel(AESState *, const AESState *, bool) + QEMU_ERROR("unsupported accel"); void aesenc_SB_SR_AK_accel(AESState *, const AESState *, const AESState *, bool) QEMU_ERROR("unsupported accel"); diff --git a/include/crypto/aes-round.h b/include/crypto/aes-round.h index f917339104..df252ac76d 100644 --- a/include/crypto/aes-round.h +++ b/include/crypto/aes-round.h @@ -20,6 +20,24 @@ typedef union { #include "host/crypto/aes-round.h" +/* + * Perform MixColumns. + */ + +void aesenc_MC_gen(AESState *ret, const AESState *st); +void aesenc_MC_genrev(AESState *ret, const AESState *st); + +static inline void aesenc_MC(AESState *r, const AESState *st, bool be) +{ + if (HAVE_AES_ACCEL) { + aesenc_MC_accel(r, st, be); + } else if (HOST_BIG_ENDIAN == be) { + aesenc_MC_gen(r, st); + } else { + aesenc_MC_genrev(r, st); + } +} + /* * Perform SubBytes + ShiftRows + AddRoundKey. */ diff --git a/crypto/aes.c b/crypto/aes.c index 3d24781858..d1ef4c19c2 100644 --- a/crypto/aes.c +++ b/crypto/aes.c @@ -28,6 +28,8 @@ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "qemu/osdep.h" +#include "qemu/bswap.h" +#include "qemu/bitops.h" #include "crypto/aes.h" #include "crypto/aes-round.h" @@ -1250,6 +1252,65 @@ static const u32 rcon[] = { 0x1B000000, 0x36000000, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ }; +/* + * Perform MixColumns. + */ +static inline void +aesenc_MC_swap(AESState *r, const AESState *st, bool swap) +{ + int swap_b = swap * 0xf; + int swap_w = swap * 0x3; + bool be = HOST_BIG_ENDIAN ^ swap; + uint32_t t; + + /* Note that AES_mc_rot is encoded for little-endian. */ + t = ( AES_mc_rot[st->b[swap_b ^ 0x0]] ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x1]], 8) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x2]], 16) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x3]], 24)); + if (be) { + t = bswap32(t); + } + r->w[swap_w ^ 0] = t; + + t = ( AES_mc_rot[st->b[swap_b ^ 0x4]] ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x5]], 8) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x6]], 16) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x7]], 24)); + if (be) { + t = bswap32(t); + } + r->w[swap_w ^ 1] = t; + + t = ( AES_mc_rot[st->b[swap_b ^ 0x8]] ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0x9]], 8) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0xA]], 16) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0xB]], 24)); + if (be) { + t = bswap32(t); + } + r->w[swap_w ^ 2] = t; + + t = ( AES_mc_rot[st->b[swap_b ^ 0xC]] ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0xD]], 8) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0xE]], 16) ^ + rol32(AES_mc_rot[st->b[swap_b ^ 0xF]], 24)); + if (be) { + t = bswap32(t); + } + r->w[swap_w ^ 3] = t; +} + +void aesenc_MC_gen(AESState *r, const AESState *st) +{ + aesenc_MC_swap(r, st, false); +} + +void aesenc_MC_genrev(AESState *r, const AESState *st) +{ + aesenc_MC_swap(r, st, true); +} + /* * Perform SubBytes + ShiftRows + AddRoundKey. */