| 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 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * The contents of this file may alternatively be used under the terms
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| 17 | * of the Common Development and Distribution License Version 1.0
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| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | * VirtualBox OSE distribution, in which case the provisions of the
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| 20 | * CDDL are applicable instead of those of the GPL.
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| 21 | *
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| 22 | * You may elect to license modified versions of this file under the
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| 23 | * terms and conditions of either the GPL or the CDDL or both.
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| 24 | */
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| 25 |
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| 26 | #ifndef ___iprt_crypto_cipher_h
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| 27 | #define ___iprt_crypto_cipher_h
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| 28 |
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| 29 | #include <iprt/asn1.h>
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| 30 |
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| 31 |
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| 32 | RT_C_DECLS_BEGIN
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| 33 |
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| 34 | struct RTCRX509SUBJECTPUBLICKEYINFO;
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| 35 |
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| 36 | /** @defgroup grp_rt_crcipher RTCrCipher - Symmetric Ciphers
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| 37 | * @ingroup grp_rt_crypto
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| 38 | * @{
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| 39 | */
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| 40 |
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| 41 | /**
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| 42 | * A symmetric cipher handle.
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| 43 | *
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| 44 | * @remarks In OpenSSL terms this corresponds to a EVP_CIPHER, while in Microsoft
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| 45 | * terms it is an algorithm handle. The latter is why a handle was
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| 46 | * choosen rather than constant descriptor structure pointer. */
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| 47 | typedef struct RTCRCIPHERINT *RTCRCIPHER;
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| 48 | /** Pointer to a symmetric cipher handle. */
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| 49 | typedef RTCRCIPHER *PRTCRCIPHER;
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| 50 | /** Nil symmetric cipher handle. */
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| 51 | #define NIL_RTCRCIPHER ((RTCRCIPHER)0)
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| 52 |
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| 53 | /**
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| 54 | * Symmetric cipher types.
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| 55 | *
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| 56 | * @note Only add new types at the end, existing values must be stable.
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| 57 | */
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| 58 | typedef enum RTCRCIPHERTYPE
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| 59 | {
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| 60 | /** Invalid zero value. */
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| 61 | RTCRCIPHERTYPE_INVALID = 0,
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| 62 | /** XTS-AES-128 (NIST SP 800-38E). */
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| 63 | RTCRCIPHERTYPE_XTS_AES_128,
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| 64 | /** XTS-AES-256 (NIST SP 800-38E). */
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| 65 | RTCRCIPHERTYPE_XTS_AES_256,
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| 66 | /** End of valid symmetric cipher types. */
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| 67 | RTCRCIPHERTYPE_END,
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| 68 | /** Make sure the type is a 32-bit one. */
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| 69 | RTCRCIPHERTYPE_32BIT_HACK = 0x7fffffff
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| 70 | } RTCRCIPHERTYPE;
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| 71 |
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| 72 |
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| 73 | RTDECL(int) RTCrCipherOpenByType(PRTCRCIPHER phCipher, RTCRCIPHERTYPE enmType, uint32_t fFlags);
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| 74 | RTDECL(uint32_t) RTCrCipherRetain(RTCRCIPHER hCipher);
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| 75 | RTDECL(uint32_t) RTCrCipherRelease(RTCRCIPHER hCipher);
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| 76 | RTDECL(uint32_t) RTCrCipherGetKeyLength(RTCRCIPHER hCipher);
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| 77 | RTDECL(uint32_t) RTCrCipherGetInitializationVectorLength(RTCRCIPHER hCipher);
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| 78 | RTDECL(uint32_t) RTCrCipherGetBlockSize(RTCRCIPHER hCipher);
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| 79 |
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| 80 | RTDECL(int) RTCrCipherEncrypt(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 81 | void const *pvInitVector, size_t cbInitVector,
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| 82 | void const *pvPlainText, size_t cbPlainText,
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| 83 | void *pvEncrypted, size_t cbEncrypted, size_t *pcbEncrypted);
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| 84 | RTDECL(int) RTCrCipherDecrypt(RTCRCIPHER hCipher, void const *pvKey, size_t cbKey,
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| 85 | void const *pvInitVector, size_t cbInitVector,
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| 86 | void const *pvEncrypted, size_t cbEncrypted,
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| 87 | void *pvPlainText, size_t cbPlainText, size_t *pcbPlainText);
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| 88 |
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| 89 | /** @} */
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| 90 |
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| 91 | RT_C_DECLS_END
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| 92 |
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| 93 | #endif
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| 94 |
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