58660863ba
crypto: support export RSA private keys with PKCS#8 standard. So that users can upload this private key to linux kernel. Signed-off-by: lei he <helei.sig11@bytedance.com> Message-Id: <20221008085030.70212-4-helei.sig11@bytedance.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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* QEMU Crypto akcipher algorithms
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*
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* Copyright (c) 2022 Bytedance
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* Author: zhenwei pi <pizhenwei@bytedance.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "crypto/akcipher.h"
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#include "akcipherpriv.h"
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#include "der.h"
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#include "rsakey.h"
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#if defined(CONFIG_GCRYPT)
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#include "akcipher-gcrypt.c.inc"
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#elif defined(CONFIG_NETTLE) && defined(CONFIG_HOGWEED)
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#include "akcipher-nettle.c.inc"
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#else
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QCryptoAkCipher *qcrypto_akcipher_new(const QCryptoAkCipherOptions *opts,
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QCryptoAkCipherKeyType type,
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const uint8_t *key, size_t keylen,
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Error **errp)
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{
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QCryptoAkCipher *akcipher = NULL;
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return akcipher;
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}
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bool qcrypto_akcipher_supports(QCryptoAkCipherOptions *opts)
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{
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return false;
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}
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#endif
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int qcrypto_akcipher_encrypt(QCryptoAkCipher *akcipher,
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const void *in, size_t in_len,
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void *out, size_t out_len, Error **errp)
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{
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const QCryptoAkCipherDriver *drv = akcipher->driver;
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return drv->encrypt(akcipher, in, in_len, out, out_len, errp);
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}
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int qcrypto_akcipher_decrypt(QCryptoAkCipher *akcipher,
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const void *in, size_t in_len,
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void *out, size_t out_len, Error **errp)
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{
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const QCryptoAkCipherDriver *drv = akcipher->driver;
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return drv->decrypt(akcipher, in, in_len, out, out_len, errp);
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}
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int qcrypto_akcipher_sign(QCryptoAkCipher *akcipher,
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const void *in, size_t in_len,
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void *out, size_t out_len, Error **errp)
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{
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const QCryptoAkCipherDriver *drv = akcipher->driver;
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return drv->sign(akcipher, in, in_len, out, out_len, errp);
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}
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int qcrypto_akcipher_verify(QCryptoAkCipher *akcipher,
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const void *in, size_t in_len,
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const void *in2, size_t in2_len, Error **errp)
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{
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const QCryptoAkCipherDriver *drv = akcipher->driver;
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return drv->verify(akcipher, in, in_len, in2, in2_len, errp);
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}
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int qcrypto_akcipher_max_plaintext_len(QCryptoAkCipher *akcipher)
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{
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return akcipher->max_plaintext_len;
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}
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int qcrypto_akcipher_max_ciphertext_len(QCryptoAkCipher *akcipher)
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{
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return akcipher->max_ciphertext_len;
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}
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int qcrypto_akcipher_max_signature_len(QCryptoAkCipher *akcipher)
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{
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return akcipher->max_signature_len;
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}
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int qcrypto_akcipher_max_dgst_len(QCryptoAkCipher *akcipher)
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{
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return akcipher->max_dgst_len;
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}
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void qcrypto_akcipher_free(QCryptoAkCipher *akcipher)
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{
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const QCryptoAkCipherDriver *drv = akcipher->driver;
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drv->free(akcipher);
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}
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int qcrypto_akcipher_export_p8info(const QCryptoAkCipherOptions *opts,
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uint8_t *key, size_t keylen,
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uint8_t **dst, size_t *dst_len,
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Error **errp)
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{
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switch (opts->alg) {
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case QCRYPTO_AKCIPHER_ALG_RSA:
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qcrypto_akcipher_rsakey_export_p8info(key, keylen, dst, dst_len);
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return 0;
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default:
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error_setg(errp, "Unsupported algorithm: %u", opts->alg);
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return -1;
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}
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}
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