1 /* 2 * QEMU Crypto akcipher algorithms 3 * 4 * Copyright (c) 2022 Bytedance 5 * Author: zhenwei pi <pizhenwei@bytedance.com> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 * 20 */ 21 22 #include "qemu/osdep.h" 23 #include "crypto/akcipher.h" 24 #include "akcipherpriv.h" 25 26 #if defined(CONFIG_GCRYPT) 27 #include "akcipher-gcrypt.c.inc" 28 #elif defined(CONFIG_NETTLE) && defined(CONFIG_HOGWEED) 29 #include "akcipher-nettle.c.inc" 30 #else 31 QCryptoAkCipher *qcrypto_akcipher_new(const QCryptoAkCipherOptions *opts, 32 QCryptoAkCipherKeyType type, 33 const uint8_t *key, size_t keylen, 34 Error **errp) 35 { 36 QCryptoAkCipher *akcipher = NULL; 37 38 return akcipher; 39 } 40 41 bool qcrypto_akcipher_supports(QCryptoAkCipherOptions *opts) 42 { 43 return false; 44 } 45 #endif 46 47 int qcrypto_akcipher_encrypt(QCryptoAkCipher *akcipher, 48 const void *in, size_t in_len, 49 void *out, size_t out_len, Error **errp) 50 { 51 const QCryptoAkCipherDriver *drv = akcipher->driver; 52 53 return drv->encrypt(akcipher, in, in_len, out, out_len, errp); 54 } 55 56 int qcrypto_akcipher_decrypt(QCryptoAkCipher *akcipher, 57 const void *in, size_t in_len, 58 void *out, size_t out_len, Error **errp) 59 { 60 const QCryptoAkCipherDriver *drv = akcipher->driver; 61 62 return drv->decrypt(akcipher, in, in_len, out, out_len, errp); 63 } 64 65 int qcrypto_akcipher_sign(QCryptoAkCipher *akcipher, 66 const void *in, size_t in_len, 67 void *out, size_t out_len, Error **errp) 68 { 69 const QCryptoAkCipherDriver *drv = akcipher->driver; 70 71 return drv->sign(akcipher, in, in_len, out, out_len, errp); 72 } 73 74 int qcrypto_akcipher_verify(QCryptoAkCipher *akcipher, 75 const void *in, size_t in_len, 76 const void *in2, size_t in2_len, Error **errp) 77 { 78 const QCryptoAkCipherDriver *drv = akcipher->driver; 79 80 return drv->verify(akcipher, in, in_len, in2, in2_len, errp); 81 } 82 83 int qcrypto_akcipher_max_plaintext_len(QCryptoAkCipher *akcipher) 84 { 85 return akcipher->max_plaintext_len; 86 } 87 88 int qcrypto_akcipher_max_ciphertext_len(QCryptoAkCipher *akcipher) 89 { 90 return akcipher->max_ciphertext_len; 91 } 92 93 int qcrypto_akcipher_max_signature_len(QCryptoAkCipher *akcipher) 94 { 95 return akcipher->max_signature_len; 96 } 97 98 int qcrypto_akcipher_max_dgst_len(QCryptoAkCipher *akcipher) 99 { 100 return akcipher->max_dgst_len; 101 } 102 103 void qcrypto_akcipher_free(QCryptoAkCipher *akcipher) 104 { 105 const QCryptoAkCipherDriver *drv = akcipher->driver; 106 107 drv->free(akcipher); 108 } 109