| 1 | /** @file
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| 2 | * IPRT - Crypto - Symmetric Ciphers.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2018-2024 Oracle and/or its affiliates.
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| 7 | *
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| 8 | * This file is part of VirtualBox base platform packages, as
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| 9 | * available from https://www.virtualbox.org.
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| 10 | *
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| 11 | * This program is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU General Public License
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| 13 | * as published by the Free Software Foundation, in version 3 of the
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| 14 | * License.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful, but
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| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 | *
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| 24 | * The contents of this file may alternatively be used under the terms
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| 25 | * of the Common Development and Distribution License Version 1.0
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| 26 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 27 | * in the VirtualBox distribution, in which case the provisions of the
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| 28 | * CDDL are applicable instead of those of the GPL.
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| 29 | *
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| 30 | * You may elect to license modified versions of this file under the
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| 31 | * terms and conditions of either the GPL or the CDDL or both.
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| 32 | *
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| 33 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 34 | */
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| 35 |
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| 36 | #ifndef IPRT_INCLUDED_crypto_cipher_h
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| 37 | #define IPRT_INCLUDED_crypto_cipher_h
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| 38 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 39 | # pragma once
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| 40 | #endif
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| 41 |
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| 42 | #include <iprt/asn1.h>
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| 43 |
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| 44 |
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| 45 | RT_C_DECLS_BEGIN
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| 46 |
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| 47 | struct RTCRX509SUBJECTPUBLICKEYINFO;
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| 48 |
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| 49 | /** @defgroup grp_rt_crcipher RTCrCipher - Symmetric Ciphers
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| 50 | * @ingroup grp_rt_crypto
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| 51 | * @{
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| 52 | */
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| 53 |
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| 54 | /**
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| 55 | * A symmetric cipher handle.
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| 56 | *
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| 57 | * @remarks In OpenSSL terms this corresponds to a EVP_CIPHER, while in Microsoft
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| 58 | * terms it is an algorithm handle. The latter is why a handle was
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| 59 | * choosen rather than constant descriptor structure pointer. */
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| 60 | typedef struct RTCRCIPHERINT *RTCRCIPHER;
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| 61 | /** Pointer to a symmetric cipher handle. */
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| 62 | typedef RTCRCIPHER *PRTCRCIPHER;
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| 63 | /** Nil symmetric cipher handle. */
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| 64 | #define NIL_RTCRCIPHER ((RTCRCIPHER)0)
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| 65 | /** Symmetric cipher context */
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| 66 | typedef struct RTCRCIPHERCTXINT *RTCRCIPHERCTX;
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| 67 | /** Pointer to a symmetric cipher context */
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| 68 | typedef RTCRCIPHERCTX *PRTCRCIPHERCTX;
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| 69 | /** Nil symmetric cipher context */
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| 70 | #define NIL_RTCRCIPHERCTX ((RTCRCIPHERCTX)0)
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| 71 |
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| 72 | /**
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| 73 | * Symmetric cipher types.
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| 74 | *
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| 75 | * @note Only add new types at the end, existing values must be stable.
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| 76 | */
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| 77 | typedef enum RTCRCIPHERTYPE
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| 78 | {
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| 79 | /** Invalid zero value. */
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| 80 | RTCRCIPHERTYPE_INVALID = 0,
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| 81 | /** XTS-AES-128 (NIST SP 800-38E). */
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| 82 | RTCRCIPHERTYPE_XTS_AES_128,
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| 83 | /** XTS-AES-256 (NIST SP 800-38E). */
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| 84 | RTCRCIPHERTYPE_XTS_AES_256,
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| 85 | /** GCM-AES-128. */
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| 86 | RTCRCIPHERTYPE_GCM_AES_128,
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| 87 | /** GCM-AES-256. */
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| 88 | RTCRCIPHERTYPE_GCM_AES_256,
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| 89 | /* CTR-AES-128 */
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| 90 | RTCRCIPHERTYPE_CTR_AES_128,
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| 91 | /* CTR-AES-256 */
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| 92 | RTCRCIPHERTYPE_CTR_AES_256,
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| 93 | /** End of valid symmetric cipher types. */
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| 94 | RTCRCIPHERTYPE_END,
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| 95 | /** Make sure the type is a 32-bit one. */
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| 96 | RTCRCIPHERTYPE_32BIT_HACK = 0x7fffffff
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| 97 | } RTCRCIPHERTYPE;
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| 98 |
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| 99 |
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| 100 | RTDECL(int) RTCrCipherOpenByType(PRTCRCIPHER phCipher, RTCRCIPHERTYPE enmType, uint32_t fFlags);
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| 101 | RTDECL(uint32_t) RTCrCipherRetain(RTCRCIPHER hCipher);
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| 102 | RTDECL(uint32_t) RTCrCipherRelease(RTCRCIPHER hCipher);
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| 103 | RTDECL(uint32_t) RTCrCipherGetKeyLength(RTCRCIPHER hCipher);
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| 104 | RTDECL(uint32_t) RTCrCipherGetInitializationVectorLength(RTCRCIPHER hCipher);
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| 105 | RTDECL(uint32_t) RTCrCipherGetBlockSize(RTCRCIPHER hCipher);
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| 106 |
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| 107 | RTDECL(int) RTCrCipherCtxFree(RTCRCIPHERCTX phCipherCtx);
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| 108 |
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| 109 | RTDECL(int) RTCrCipherCtxEncryptInit(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 110 | void const *pvInitVector, size_t cbInitVector,
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| 111 | void const *pvAuthData, size_t cbAuthData,
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| 112 | PRTCRCIPHERCTX phCipherCtx);
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| 113 | RTDECL(int) RTCrCipherCtxEncryptProcess(RTCRCIPHERCTX hCipherCtx, void const *pvPlainText, size_t cbPlainText,
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| 114 | void *pvEncrypted, size_t cbEncrypted, size_t *pcbEncrypted);
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| 115 | RTDECL(int) RTCrCipherCtxEncryptFinish(RTCRCIPHERCTX hCipherCtx,
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| 116 | void *pvEncrypted, size_t *pcbEncrypted,
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| 117 | void *pvTag, size_t cbTag, size_t *pcbTag);
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| 118 |
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| 119 | RTDECL(int) RTCrCipherCtxDecryptInit(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 120 | void const *pvInitVector, size_t cbInitVector,
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| 121 | void const *pvAuthData, size_t cbAuthData,
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| 122 | void *pvTag, size_t cbTag, PRTCRCIPHERCTX phCipherCtx);
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| 123 | RTDECL(int) RTCrCipherCtxDecryptProcess(RTCRCIPHERCTX hCipherCtx,
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| 124 | void const *pvEncrypted, size_t cbEncrypted,
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| 125 | void *pvPlainText, size_t cbPlainText, size_t *pcbPlainText);
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| 126 | RTDECL(int) RTCrCipherCtxDecryptFinish(RTCRCIPHERCTX hCipherCtx,
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| 127 | void *pvPlainText, size_t *pcbPlainText);
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| 128 |
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| 129 |
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| 130 | RTDECL(int) RTCrCipherEncrypt(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 131 | void const *pvInitVector, size_t cbInitVector,
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| 132 | void const *pvPlainText, size_t cbPlainText,
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| 133 | void *pvEncrypted, size_t cbEncrypted, size_t *pcbEncrypted);
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| 134 | RTDECL(int) RTCrCipherDecrypt(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 135 | void const *pvInitVector, size_t cbInitVector,
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| 136 | void const *pvEncrypted, size_t cbEncrypted,
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| 137 | void *pvPlainText, size_t cbPlainText, size_t *pcbPlainText);
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| 138 | RTDECL(int) RTCrCipherEncryptEx(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 139 | void const *pvInitVector, size_t cbInitVector,
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| 140 | void const *pvAuthData, size_t cbAuthData,
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| 141 | void const *pvPlainText, size_t cbPlainText,
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| 142 | void *pvEncrypted, size_t cbEncrypted, size_t *pcbEncrypted,
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| 143 | void *pvTag, size_t cbTag, size_t *pcbTag);
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| 144 | RTDECL(int) RTCrCipherDecryptEx(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 145 | void const *pvInitVector, size_t cbInitVector,
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| 146 | void const *pvAuthData, size_t cbAuthData,
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| 147 | void *pvTag, size_t cbTag,
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| 148 | void const *pvEncrypted, size_t cbEncrypted,
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| 149 | void *pvPlainText, size_t cbPlainText, size_t *pcbPlainText);
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| 150 |
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| 151 | /** @} */
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| 152 |
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| 153 | RT_C_DECLS_END
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| 154 |
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| 155 | #endif /* !IPRT_INCLUDED_crypto_cipher_h */
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| 156 |
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