From patchwork Sat May 14 00:54:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: zhenwei pi X-Patchwork-Id: 12849634 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 E3B21C433EF for ; Sat, 14 May 2022 02:53:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229998AbiENCxp (ORCPT ); Fri, 13 May 2022 22:53:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229926AbiENCxk (ORCPT ); Fri, 13 May 2022 22:53:40 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3865735F000 for ; Fri, 13 May 2022 17:59:31 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id g184so8963566pgc.1 for ; Fri, 13 May 2022 17:59:31 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=vSIFGjN5WMf5RIbOuFdLG91fbEmgBEZsTgGM0sq1eLA=; b=6ypSnRWgcrm2SX6Tztd9NYYZ1wuZ9h+XMkL2y5BIjZRJ1FpWlqZaiTDQp2Pp4YPA6A /CX4rDyiBcZGaYlHm0JcJBRvBg9vmUEibFk7jS1BhigpMSbGoAEpYYD/0y8qQ0EaDvcS CI6MsUBJTGzl6SjEWFntRHDllM3SgY7+Dib5fzr9+Olchk3ySEGy/62JSVjr6ak0S6ib FtURdzer9OzWeEjyy0AZJMB6Or4q2XVrsh376Ojv6obyuJSSFsDZumF6XGB7B6L+PMzT sctUa+Lyfg48uXx90IHi+PDfUXY62Au/3dYL4t9onAxFCJFKKT1FPBir0DCHZsg2YYYp ElLw== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=vSIFGjN5WMf5RIbOuFdLG91fbEmgBEZsTgGM0sq1eLA=; b=L6Mn75A48QYgwBwk3M6PCu5dN50Y2YwwEG9AoqLELDRWpNqQVfjUhHOFC3Q0DAuhtu zO3KRxpzXbeMH0AX72wFYGkrBz0rHtXqLHBrJbZ39Xjnm8S8GiFnOU/nFneWXV5T1I46 Ix003aqyc7sy4O7DJufqgBHKIhmKvHcOsyd67HC1426vqY0GEVd4hyg4Pi+1/ncR7OqT buI1ZKfNlZVJkTweiVzFyp6LFekfbKBNsTmgHqg6A4EyZUxkxtNgFcLw+dD+f0zcdgMd XeCVuugHZOM/qbksXINC9H2Ec3+Ud6z4rO1Ol3PicsVkuAUWtonAAlxK2mWRzHqd+Ggc WwUQ== X-Gm-Message-State: AOAM532LSxAY4JbmYeokQwXkk5I+I0OTsnH6pmWTCt0F8T1/2QrSCotr CE18mNwHXao4Aj6+QgF2/BXGow== X-Google-Smtp-Source: ABdhPJzY2P/lXNZPDiTcZXhQ44HJWV27pcq/OHuPw+No73Bt2BhohM8yucf/AyLOoOjT2OBHdEBFxg== X-Received: by 2002:a62:1547:0:b0:50e:d9b:ddf with SMTP id 68-20020a621547000000b0050e0d9b0ddfmr7039703pfv.46.1652489970637; Fri, 13 May 2022 17:59:30 -0700 (PDT) Received: from always-x1.www.tendawifi.com ([139.177.225.239]) by smtp.gmail.com with ESMTPSA id t24-20020a170902b21800b0015e8d4eb1dbsm2466125plr.37.2022.05.13.17.59.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 May 2022 17:59:30 -0700 (PDT) From: zhenwei pi 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, helei.sig11@bytedance.com, jasowang@redhat.com, pizhenwei@bytedance.com, cohuck@redhat.com Subject: [PATCH v6 3/9] crypto: Introduce akcipher crypto class Date: Sat, 14 May 2022 08:54:58 +0800 Message-Id: <20220514005504.1042884-4-pizhenwei@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220514005504.1042884-1-pizhenwei@bytedance.com> References: <20220514005504.1042884-1-pizhenwei@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Introduce new akcipher crypto class 'QCryptoAkCIpher', which supports basic asymmetric operations: encrypt, decrypt, sign and verify. Suggested by Daniel P. Berrangé, also add autoptr cleanup for the new class. Thanks to Daniel! Co-developed-by: lei he Signed-off-by: lei he Signed-off-by: zhenwei pi Reviewed-by: Daniel P. Berrangé --- crypto/akcipher.c | 102 ++++++++++++++++++++++++ crypto/akcipherpriv.h | 55 +++++++++++++ crypto/meson.build | 1 + include/crypto/akcipher.h | 158 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 316 insertions(+) create mode 100644 crypto/akcipher.c create mode 100644 crypto/akcipherpriv.h create mode 100644 include/crypto/akcipher.h diff --git a/crypto/akcipher.c b/crypto/akcipher.c new file mode 100644 index 0000000000..ab28bf415b --- /dev/null +++ b/crypto/akcipher.c @@ -0,0 +1,102 @@ +/* + * QEMU Crypto akcipher algorithms + * + * Copyright (c) 2022 Bytedance + * Author: zhenwei pi + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + * + */ + +#include "qemu/osdep.h" +#include "crypto/akcipher.h" +#include "akcipherpriv.h" + +QCryptoAkCipher *qcrypto_akcipher_new(const QCryptoAkCipherOptions *opts, + QCryptoAkCipherKeyType type, + const uint8_t *key, size_t keylen, + Error **errp) +{ + QCryptoAkCipher *akcipher = NULL; + + return akcipher; +} + +bool qcrypto_akcipher_supports(QCryptoAkCipherOptions *opts) +{ + return false; +} + +int qcrypto_akcipher_encrypt(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp) +{ + const QCryptoAkCipherDriver *drv = akcipher->driver; + + return drv->encrypt(akcipher, in, in_len, out, out_len, errp); +} + +int qcrypto_akcipher_decrypt(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp) +{ + const QCryptoAkCipherDriver *drv = akcipher->driver; + + return drv->decrypt(akcipher, in, in_len, out, out_len, errp); +} + +int qcrypto_akcipher_sign(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp) +{ + const QCryptoAkCipherDriver *drv = akcipher->driver; + + return drv->sign(akcipher, in, in_len, out, out_len, errp); +} + +int qcrypto_akcipher_verify(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + const void *in2, size_t in2_len, Error **errp) +{ + const QCryptoAkCipherDriver *drv = akcipher->driver; + + return drv->verify(akcipher, in, in_len, in2, in2_len, errp); +} + +int qcrypto_akcipher_max_plaintext_len(QCryptoAkCipher *akcipher) +{ + return akcipher->max_plaintext_len; +} + +int qcrypto_akcipher_max_ciphertext_len(QCryptoAkCipher *akcipher) +{ + return akcipher->max_ciphertext_len; +} + +int qcrypto_akcipher_max_signature_len(QCryptoAkCipher *akcipher) +{ + return akcipher->max_signature_len; +} + +int qcrypto_akcipher_max_dgst_len(QCryptoAkCipher *akcipher) +{ + return akcipher->max_dgst_len; +} + +void qcrypto_akcipher_free(QCryptoAkCipher *akcipher) +{ + const QCryptoAkCipherDriver *drv = akcipher->driver; + + drv->free(akcipher); +} diff --git a/crypto/akcipherpriv.h b/crypto/akcipherpriv.h new file mode 100644 index 0000000000..739f639bcf --- /dev/null +++ b/crypto/akcipherpriv.h @@ -0,0 +1,55 @@ +/* + * QEMU Crypto asymmetric algorithms + * + * Copyright (c) 2022 Bytedance + * Author: zhenwei pi + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + * + */ + +#ifndef QCRYPTO_AKCIPHERPRIV_H +#define QCRYPTO_AKCIPHERPRIV_H + +#include "qapi/qapi-types-crypto.h" + +typedef struct QCryptoAkCipherDriver QCryptoAkCipherDriver; + +struct QCryptoAkCipher { + QCryptoAkCipherAlgorithm alg; + QCryptoAkCipherKeyType type; + int max_plaintext_len; + int max_ciphertext_len; + int max_signature_len; + int max_dgst_len; + QCryptoAkCipherDriver *driver; +}; + +struct QCryptoAkCipherDriver { + int (*encrypt)(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp); + int (*decrypt)(QCryptoAkCipher *akcipher, + const void *out, size_t out_len, + void *in, size_t in_len, Error **errp); + int (*sign)(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp); + int (*verify)(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + const void *in2, size_t in2_len, Error **errp); + void (*free)(QCryptoAkCipher *akcipher); +}; + +#endif /* QCRYPTO_AKCIPHER_H */ diff --git a/crypto/meson.build b/crypto/meson.build index 685fb37097..313f935f27 100644 --- a/crypto/meson.build +++ b/crypto/meson.build @@ -1,6 +1,7 @@ crypto_ss.add(genh) crypto_ss.add(files( 'afsplit.c', + 'akcipher.c', 'block-luks.c', 'block-qcow.c', 'block.c', diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h new file mode 100644 index 0000000000..51f5fa2774 --- /dev/null +++ b/include/crypto/akcipher.h @@ -0,0 +1,158 @@ +/* + * QEMU Crypto asymmetric algorithms + * + * Copyright (c) 2022 Bytedance + * Author: zhenwei pi + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + * + */ + +#ifndef QCRYPTO_AKCIPHER_H +#define QCRYPTO_AKCIPHER_H + +#include "qapi/qapi-types-crypto.h" + +typedef struct QCryptoAkCipher QCryptoAkCipher; + +/** + * qcrypto_akcipher_supports: + * @opts: the asymmetric key algorithm and related options + * + * Determine if asymmetric key cipher decribed with @opts is + * supported by the current configured build + * + * Returns: true if it is supported, false otherwise. + */ +bool qcrypto_akcipher_supports(QCryptoAkCipherOptions *opts); + +/** + * qcrypto_akcipher_new: + * @opts: specify the algorithm and the related arguments + * @type: private or public key type + * @key: buffer to store the key + * @key_len: the length of key buffer + * @errp: error pointer + * + * Create akcipher context + * + * Returns: On success, a new QCryptoAkCipher initialized with @opt + * is created and returned, otherwise NULL is returned. + */ + +QCryptoAkCipher *qcrypto_akcipher_new(const QCryptoAkCipherOptions *opts, + QCryptoAkCipherKeyType type, + const uint8_t *key, size_t key_len, + Error **errp); + +/** + * qcrypto_akcipher_encrypt: + * @akcipher: akcipher context + * @in: plaintext pending to be encrypted + * @in_len: length of plaintext, less or equal to the size reported + * by a call to qcrypto_akcipher_max_plaintext_len() + * @out: buffer to store the ciphertext + * @out_len: length of ciphertext, less or equal to the size reported + * by a call to qcrypto_akcipher_max_ciphertext_len() + * @errp: error pointer + * + * Encrypt @in and write ciphertext into @out + * + * Returns: length of ciphertext if encrypt succeed, + * otherwise -1 is returned + */ +int qcrypto_akcipher_encrypt(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp); + +/** + * qcrypto_akcipher_decrypt: + * @akcipher: akcipher context + * @in: ciphertext to be decrypted + * @in_len: the length of ciphertext, less or equal to the size reported + * by a call to qcrypto_akcipher_max_ciphertext_len() + * @out: buffer to store the plaintext + * @out_len: length of the plaintext buffer, less or equal to the size + * reported by a call to qcrypto_akcipher_max_plaintext_len() + * @errp: error pointer + * + * Decrypt @in and write plaintext into @out + * + * Returns: length of plaintext if decrypt succeed, + * otherwise -1 is returned + */ +int qcrypto_akcipher_decrypt(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp); + +/** + * qcrypto_akcipher_sign: + * @akcipher: akcipher context + * @in: data to be signed + * @in_len: the length of data, less or equal to the size reported + * by a call to qcrypto_akcipher_max_dgst_len() + * @out: buffer to store the signature + * @out_len: length of the signature buffer, less or equal to the size + * by a call to qcrypto_akcipher_max_signature_len() + * @errp: error pointer + * + * Generate signature for @in, write into @out + * + * Returns: length of signature if succeed, + * otherwise -1 is returned + */ +int qcrypto_akcipher_sign(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + void *out, size_t out_len, Error **errp); + +/** + * qcrypto_akcipher_verify: + * @akcipher: akcipher context + * @in: pointer to the signature + * @in_len: length of signature, ess or equal to the size reported + * by a call to qcrypto_akcipher_max_signature_len() + * @in2: pointer to original data + * @in2_len: the length of original data, less or equal to the size + * by a call to qcrypto_akcipher_max_dgst_len() + * @errp: error pointer + * + * Verify @in and @in2 match or not + * + * Returns: 0 for succeed, + * otherwise -1 is returned + */ +int qcrypto_akcipher_verify(QCryptoAkCipher *akcipher, + const void *in, size_t in_len, + const void *in2, size_t in2_len, Error **errp); + +int qcrypto_akcipher_max_plaintext_len(QCryptoAkCipher *akcipher); + +int qcrypto_akcipher_max_ciphertext_len(QCryptoAkCipher *akcipher); + +int qcrypto_akcipher_max_signature_len(QCryptoAkCipher *akcipher); + +int qcrypto_akcipher_max_dgst_len(QCryptoAkCipher *akcipher); + +/** + * qcrypto_akcipher_free: + * @akcipher: akcipher context + * + * Free the akcipher context + * + */ +void qcrypto_akcipher_free(QCryptoAkCipher *akcipher); + +G_DEFINE_AUTOPTR_CLEANUP_FUNC(QCryptoAkCipher, qcrypto_akcipher_free) + +#endif /* QCRYPTO_AKCIPHER_H */