From patchwork Wed May 25 09:01:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lei He X-Patchwork-Id: 576047 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BDB7C433FE for ; Wed, 25 May 2022 09:01:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237050AbiEYJBs (ORCPT ); Wed, 25 May 2022 05:01:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236806AbiEYJBq (ORCPT ); Wed, 25 May 2022 05:01:46 -0400 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54BC170379 for ; Wed, 25 May 2022 02:01:45 -0700 (PDT) Received: by mail-pg1-x52a.google.com with SMTP id 137so18416776pgb.5 for ; Wed, 25 May 2022 02:01:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3yQCRMTgRFh790ioZWPOFdNlHtOcsW9IlLZFwd/ITq0=; b=ZKFVw4JzlrOIp34zHf6QrwShEtEp4OA0PJEd+zURcG60QoAt06i5teLvZ4u78ss4JQ nCtj4VzzW0W/j0Ro02KcrAZeqK3jttHadDfxbwIooPxXE6U4WoWQ/+Xgeoq+U8DEWCrm PJ3SMqPY5fkdlVBfFOxaG5rbm7RX45nJ/YKyj7x7glO6kX9UaYJO59U1lMpsKnz0RKfF Nr+uLmRDSufHVf2KxDndrwebsUOJGjImM+CZ9dnXKWtz1RYjDvVx9Q87MGBnYStFXljA 2bKuYzQOMwVehB2hHUA28rTqPow4GPVI6m4bTPRt9wu/DCS0WevLzwOOv7fEK2UxAomZ kPpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3yQCRMTgRFh790ioZWPOFdNlHtOcsW9IlLZFwd/ITq0=; b=7HgOqLDybkOLnjvh2DqrR43llJZmdh4dihyYTBCZwclpf52WkIZxxMFTge9eijWNrU swqoJNU/hNj40kRig1Xifp+zX8aNvQRDQ0v0QJP22i1V2CNojZXSEz8GhrHq4zjtU3Ln dV9RIVB3cbLu1XLnP5JgtWsn9AOj4ra+TK3d9ThxqmgH+up3LrMYNav/toejDkvjo+Js AGTQflmTAVxuxbi5aZwYG86G+7YQIQkHlOzQ+LYoACo3mKfSx8rM9poh2usLoCQEhEEk ldpHXbWoVvgIZIc1HIu+spDot/L/NdoWxu5I7TuuH1HvltXXp4CuIS54DC4Tn19lf65S Zv1w== X-Gm-Message-State: AOAM531Zf/M0hG6AsqBZcJqI16/frvmLWfxO0KgOpsnfXZ9h6OHGfOEt mjrz4yVOO64QcBumVkBagAw8eA== X-Google-Smtp-Source: ABdhPJwhiszRsr9JdWKWJV3+R07mVrxLabrcJ0VfneRrbvgGXy/xKeFK0DuqovMGXhIlmleFgyWn6w== X-Received: by 2002:a63:4423:0:b0:3fa:c9dd:33b9 with SMTP id r35-20020a634423000000b003fac9dd33b9mr3775652pga.286.1653469304695; Wed, 25 May 2022 02:01:44 -0700 (PDT) Received: from FVFDK26JP3YV.usts.net ([139.177.225.226]) by smtp.gmail.com with ESMTPSA id b10-20020a17090a6aca00b001deb92de665sm1015424pjm.46.2022.05.25.02.01.40 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 25 May 2022 02:01:44 -0700 (PDT) From: Lei He To: mst@redhat.com, arei.gonglei@huawei.com, berrange@redhat.com Cc: qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org, linux-crypto@vger.kernel.org, jasowang@redhat.com, cohuck@redhat.com, pizhenwei@bytedance.com, helei.sig11@bytedance.com Subject: [PATCH v7 0/9] Introduce akcipher service for virtio-crypto Date: Wed, 25 May 2022 17:01:09 +0800 Message-Id: <20220525090118.43403-1-helei.sig11@bytedance.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org v6 -> v7: - Fix serval build errors for some specific platforms/configurations. - Use '%zu' instead of '%lu' for size_t parameters. - AkCipher-gcrypt: avoid setting wrong error messages when parsing RSA keys. - AkCipher-benchmark: process constant amount of sign/verify instead of running sign/verify for a constant duration. v5 -> v6: - Fix build errors and codestyles. - Add parameter 'Error **errp' for qcrypto_akcipher_rsakey_parse. - Report more detailed errors. - Fix buffer length check and return values of akcipher-nettle, allows caller to pass a buffer with larger size than actual needed. A million thanks to Daniel! v4 -> v5: - Move QCryptoAkCipher into akcipherpriv.h, and modify the related comments. - Rename asn1_decoder.c to der.c. - Code style fix: use 'cleanup' & 'error' lables. - Allow autoptr type to auto-free. - Add test cases for rsakey to handle DER error. - Other minor fixes. v3 -> v4: - Coding style fix: Akcipher -> AkCipher, struct XXX -> XXX, Rsa -> RSA, XXX-alg -> XXX-algo. - Change version info in qapi/crypto.json, from 7.0 -> 7.1. - Remove ecdsa from qapi/crypto.json, it would be introduced with the implemetion later. - Use QCryptoHashAlgothrim instead of QCryptoRSAHashAlgorithm(removed) in qapi/crypto.json. - Rename arguments of qcrypto_akcipher_XXX to keep aligned with qcrypto_cipher_XXX(dec/enc/sign/vefiry -> in/out/in2), and add qcrypto_akcipher_max_XXX APIs. - Add new API: qcrypto_akcipher_supports. - Change the return value of qcrypto_akcipher_enc/dec/sign, these functions return the actual length of result. - Separate ASN.1 source code and test case clean. - Disable RSA raw encoding for akcipher-nettle. - Separate RSA key parser into rsakey.{hc}, and implememts it with builtin-asn1-decoder and nettle respectivly. - Implement RSA(pkcs1 and raw encoding) algorithm by gcrypt. This has higher priority than nettle. - For some akcipher operations(eg, decryption of pkcs1pad(rsa)), the length of returned result maybe less than the dst buffer size, return the actual length of result instead of the buffer length to the guest side. (in function virtio_crypto_akcipher_input_data_helper) - Other minor changes. Thanks to Daniel! Eric pointed out this missing part of use case, send it here again. In our plan, the feature is designed for HTTPS offloading case and other applications which use kernel RSA/ecdsa by keyctl syscall. The full picture shows bellow: Nginx/openssl[1] ... Apps Guest ----------------------------------------- virtio-crypto driver[2] ------------------------------------------------- virtio-crypto backend[3] Host ----------------------------------------- / | \ builtin[4] vhost keyctl[5] ... [1] User applications can offload RSA calculation to kernel by keyctl syscall. There is no keyctl engine in openssl currently, we developed a engine and tried to contribute it to openssl upstream, but openssl 1.x does not accept new feature. Link: https://github.com/openssl/openssl/pull/16689 This branch is available and maintained by Lei https://github.com/TousakaRin/openssl/tree/OpenSSL_1_1_1-kctl_engine We tested nginx(change config file only) with openssl keyctl engine, it works fine. [2] virtio-crypto driver is used to communicate with host side, send requests to host side to do asymmetric calculation. https://lkml.org/lkml/2022/3/1/1425 [3] virtio-crypto backend handles requests from guest side, and forwards request to crypto backend driver of QEMU. [4] Currently RSA is supported only in builtin driver. This driver is supposed to test the full feature without other software(Ex vhost process) and hardware dependence. ecdsa is introduced into qapi type without implementation, this may be implemented in Q3-2022 or later. If ecdsa type definition should be added with the implementation together, I'll remove this in next version. [5] keyctl backend is in development, we will post this feature in Q2-2022. keyctl backend can use hardware acceleration(Ex, Intel QAT). Setup the full environment, tested with Intel QAT on host side, the QPS of HTTPS increase to ~200% in a guest. VS PCI passthrough: the most important benefit of this solution makes the VM migratable. v2 -> v3: - Introduce akcipher types to qapi - Add test/benchmark suite for akcipher class - Seperate 'virtio_crypto: Support virtio crypto asym operation' into: - crypto: Introduce akcipher crypto class - virtio-crypto: Introduce RSA algorithm v1 -> v2: - Update virtio_crypto.h from v2 version of related kernel patch. v1: - Support akcipher for virtio-crypto. - Introduce akcipher class. - Introduce ASN1 decoder into QEMU. - Implement RSA backend by nettle/hogweed. Lei He (6): qapi: crypto-akcipher: Introduce akcipher types to qapi crypto: add ASN.1 DER decoder crypto: Implement RSA algorithm by hogweed crypto: Implement RSA algorithm by gcrypt test/crypto: Add test suite for crypto akcipher tests/crypto: Add test suite for RSA keys Zhenwei Pi (3): virtio-crypto: header update crypto: Introduce akcipher crypto class crypto: Introduce RSA algorithm backends/cryptodev-builtin.c | 272 ++++++- backends/cryptodev-vhost-user.c | 34 +- backends/cryptodev.c | 32 +- crypto/akcipher-gcrypt.c.inc | 595 +++++++++++++++ crypto/akcipher-nettle.c.inc | 451 +++++++++++ crypto/akcipher.c | 108 +++ crypto/akcipherpriv.h | 55 ++ crypto/der.c | 189 +++++ crypto/der.h | 81 ++ crypto/meson.build | 6 + crypto/rsakey-builtin.c.inc | 200 +++++ crypto/rsakey-nettle.c.inc | 158 ++++ crypto/rsakey.c | 44 ++ crypto/rsakey.h | 92 +++ hw/virtio/virtio-crypto.c | 323 ++++++-- include/crypto/akcipher.h | 158 ++++ include/hw/virtio/virtio-crypto.h | 5 +- include/standard-headers/linux/virtio_crypto.h | 82 +- include/sysemu/cryptodev.h | 83 ++- meson.build | 11 + qapi/crypto.json | 64 ++ tests/bench/benchmark-crypto-akcipher.c | 137 ++++ tests/bench/meson.build | 1 + tests/bench/test_akcipher_keys.inc | 537 ++++++++++++++ tests/unit/meson.build | 2 + tests/unit/test-crypto-akcipher.c | 990 +++++++++++++++++++++++++ tests/unit/test-crypto-der.c | 290 ++++++++ 27 files changed, 4854 insertions(+), 146 deletions(-) create mode 100644 crypto/akcipher-gcrypt.c.inc create mode 100644 crypto/akcipher-nettle.c.inc create mode 100644 crypto/akcipher.c create mode 100644 crypto/akcipherpriv.h create mode 100644 crypto/der.c create mode 100644 crypto/der.h create mode 100644 crypto/rsakey-builtin.c.inc create mode 100644 crypto/rsakey-nettle.c.inc create mode 100644 crypto/rsakey.c create mode 100644 crypto/rsakey.h create mode 100644 include/crypto/akcipher.h create mode 100644 tests/bench/benchmark-crypto-akcipher.c create mode 100644 tests/bench/test_akcipher_keys.inc create mode 100644 tests/unit/test-crypto-akcipher.c create mode 100644 tests/unit/test-crypto-der.c