diff options
Diffstat (limited to 'src/VBox/Runtime/common/checksum/openssl-sha3.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/checksum/openssl-sha3.cpp | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/checksum/openssl-sha3.cpp b/src/VBox/Runtime/common/checksum/openssl-sha3.cpp new file mode 100644 index 00000000..fba83421 --- /dev/null +++ b/src/VBox/Runtime/common/checksum/openssl-sha3.cpp @@ -0,0 +1,270 @@ +/* $Id: openssl-sha3.cpp $ */ +/** @file + * IPRT - SHA-3 hash functions, OpenSSL based implementation. + */ + +/* + * Copyright (C) 2020-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#if 1 /* For now: */ +# include "alt-sha3.cpp" + +#else + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/string.h> + +#include "internal/openssl-pre.h" +#include <openssl/evp.h> +#include "internal/openssl-post.h" + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +#define RTSHA3PRIVATECTX_MAGIC UINT64_C(0xb6362d323c56b758) +#define RTSHA3PRIVATECTX_MAGIC_FINAL UINT64_C(0x40890fe0e474215d) +#define RTSHA3PRIVATECTX_MAGIC_DEAD UINT64_C(0xdead7a05081cbeef) + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/* Internal EVP structure that we fake here to avoid lots of casting. */ +struct evp_md_ctx_st +{ + void *apvWhatever[10]; +}; + +/** The OpenSSL private context structure. */ +typedef struct RTSHA3PRIVATECTX +{ + /** RTSHA3PRIVATECTX_MAGIC / RTSHA3PRIVATECTX_MAGIC_FINAL / RTSHA3PRIVATECTX_MAGIC_DEAD */ + uint64_t u64Magic; + /** The OpenSSL context. We cheat to avoid EVP_MD_CTX_new/free. */ + struct evp_md_ctx_st MdCtx; +} RTSHA3PRIVATECTX; + +#define RT_SHA3_PRIVATE_CONTEXT +#include <iprt/sha.h> +AssertCompile(RT_SIZEOFMEMB(RTSHA3CONTEXT, abPadding) >= RT_SIZEOFMEMB(RTSHA3CONTEXT, Private)); + + + +static int rtSha3Init(PRTSHA3CONTEXT pCtx, const EVP_MD *pMdType) +{ + RT_ZERO(*pCtx); /* This is what EVP_MD_CTX_new does. */ + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC; + + AssertReturnStmt(EVP_DigestInit_ex(&pCtx->Private.MdCtx, pMdType, NULL /*engine*/), + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC_DEAD, + VERR_CR_DIGEST_OSSL_DIGEST_INIT_ERROR); + return VINF_SUCCESS; +} + + +static int rtSha3Update(PRTSHA3CONTEXT pCtx, uint8_t const *pbData, size_t cbData) +{ + AssertMsgReturn(pCtx->Private.u64Magic == RTSHA3PRIVATECTX_MAGIC, ("u64Magic=%RX64\n", pCtx->Private.u64Magic), + VERR_INVALID_CONTEXT); + AssertReturn(EVP_DigestUpdate(&pCtx->Private.MdCtx, pbData, cbData), VERR_GENERAL_FAILURE); + return VINF_SUCCESS; +} + + +static int rtSha3Final(PRTSHA3CONTEXT pCtx, uint8_t *pbDigest, size_t cbDigest) +{ + RT_BZERO(pbDigest, cbDigest); + AssertMsgReturn(pCtx->Private.u64Magic == RTSHA3PRIVATECTX_MAGIC, ("u64Magic=%RX64\n", pCtx->Private.u64Magic), + VERR_INVALID_CONTEXT); + AssertReturn(EVP_DigestFinal_ex(&pCtx->Private.MdCtx, pbDigest, NULL), VERR_GENERAL_FAILURE); + + /* Implicit cleanup. */ + EVP_MD_CTX_reset(&pCtx->Private.MdCtx); + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC_FINAL; + return VINF_SUCCESS; +} + + +static int rtSha3Cleanup(PRTSHA3CONTEXT pCtx) +{ + if (pCtx) + { + if (pCtx->Private.u64Magic == RTSHA3PRIVATECTX_MAGIC_FINAL) + { /* likely */ } + else if (pCtx->Private.u64Magic == RTSHA3PRIVATECTX_MAGIC) + EVP_MD_CTX_reset(&pCtx->Private.MdCtx); + else + AssertMsgFailedReturn(("u64Magic=%RX64\n", pCtx->Private.u64Magic), VERR_INVALID_CONTEXT); + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC_DEAD; + } + return VINF_SUCCESS; +} + + +static int rtSha3Clone(PRTSHA3CONTEXT pCtx, RTSHA3CONTEXT const *pCtxSrc) +{ + Assert(pCtx->Private.u64Magic != RTSHA3PRIVATECTX_MAGIC); + RT_ZERO(*pCtx); /* This is what EVP_MD_CTX_new does. */ + + AssertReturn(pCtxSrc->Private.u64Magic == RTSHA3PRIVATECTX_MAGIC, VERR_INVALID_CONTEXT); + + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC; + AssertReturnStmt(EVP_MD_CTX_copy_ex(&pCtx->Private.MdCtx, &pCtxSrc->Private.MdCtx), + pCtx->Private.u64Magic = RTSHA3PRIVATECTX_MAGIC_DEAD, + VERR_CR_DIGEST_OSSL_DIGEST_CTX_COPY_ERROR); + return VINF_SUCCESS; +} + + +static int rtSha3(const void *pvData, size_t cbData, const EVP_MD *pMdType, uint8_t *pabHash, size_t cbHash) +{ + RT_BZERO(pabHash, cbHash); + + int rc; + EVP_MD_CTX *pCtx = EVP_MD_CTX_new(); + if (pCtx) + { + if (EVP_DigestInit_ex(pCtx, pMdType, NULL /*engine*/)) + { + if (EVP_DigestUpdate(pCtx, pvData, cbData)) + { + if (EVP_DigestFinal_ex(pCtx, pabHash, NULL)) + rc = VINF_SUCCESS; + else + AssertFailedStmt(rc = VERR_GENERAL_FAILURE); + } + else + AssertFailedStmt(rc = VERR_GENERAL_FAILURE); + } + else + AssertFailedStmt(rc = VERR_CR_DIGEST_OSSL_DIGEST_INIT_ERROR); + EVP_MD_CTX_free(pCtx); + } + else + AssertFailedStmt(rc = VERR_NO_MEMORY); + return rc; +} + + +static bool rtSha3Check(const void *pvData, size_t cbData, const EVP_MD *pMdType, + const uint8_t *pabHash, uint8_t *pabHashTmp, size_t cbHash) +{ + int rc = rtSha3(pvData, cbData, pMdType, pabHashTmp, cbHash); + return RT_SUCCESS(rc) && memcmp(pabHash, pabHashTmp, cbHash) == 0; +} + + +/** Macro for declaring the interface for a SHA3 variation. + * @internal */ +#define RTSHA3_DEFINE_VARIANT(a_cBits, a_pMdType) \ +AssertCompile((a_cBits / 8) == RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)); \ +\ +RTDECL(int) RT_CONCAT(RTSha3t,a_cBits)(const void *pvBuf, size_t cbBuf, uint8_t pabHash[RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)]) \ +{ \ + return rtSha3(pvBuf, cbBuf, a_pMdType, pabHash, (a_cBits) / 8); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT(RTSha3t,a_cBits)); \ +\ +\ +RTDECL(bool) RT_CONCAT3(RTSha3t,a_cBits,Check)(const void *pvBuf, size_t cbBuf, \ + uint8_t const pabHash[RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)]) \ +{ \ + uint8_t abHashTmp[(a_cBits) / 8]; \ + return rtSha3Check(pvBuf, cbBuf, a_pMdType, pabHash, abHashTmp, (a_cBits) / 8); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Check)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,Init)(RT_CONCAT3(PRTSHA3T,a_cBits,CONTEXT) pCtx) \ +{ \ + return rtSha3Init(&pCtx->Sha3, a_pMdType); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Init)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,Update)(RT_CONCAT3(PRTSHA3T,a_cBits,CONTEXT) pCtx, const void *pvBuf, size_t cbBuf) \ +{ \ + return rtSha3Update(&pCtx->Sha3, (uint8_t const *)pvBuf, cbBuf); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Update)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,Final)(RT_CONCAT3(PRTSHA3T,a_cBits,CONTEXT) pCtx, \ + uint8_t pabHash[RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)]) \ +{ \ + return rtSha3Final(&pCtx->Sha3, pabHash, (a_cBits) / 8); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Final)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,Cleanup)(RT_CONCAT3(PRTSHA3T,a_cBits,CONTEXT) pCtx) \ +{ \ + return rtSha3Cleanup(&pCtx->Sha3); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Cleanup)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,Clone)(RT_CONCAT3(PRTSHA3T,a_cBits,CONTEXT) pCtx, \ + RT_CONCAT3(RTSHA3T,a_cBits,CONTEXT) const *pCtxSrc) \ +{ \ + return rtSha3Clone(&pCtx->Sha3, &pCtxSrc->Sha3); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,Clone)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,ToString)(uint8_t const pabHash[RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)], \ + char *pszDigest, size_t cchDigest) \ +{ \ + return RTStrPrintHexBytes(pszDigest, cchDigest, pabHash, (a_cBits) / 8, 0 /*fFlags*/); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,ToString)); \ +\ +\ +RTDECL(int) RT_CONCAT3(RTSha3t,a_cBits,FromString)(char const *pszDigest, uint8_t pabHash[RT_CONCAT3(RTSHA3_,a_cBits,_HASH_SIZE)]) \ +{ \ + return RTStrConvertHexBytes(RTStrStripL(pszDigest), &pabHash[0], (a_cBits) / 8, 0 /*fFlags*/); \ +} \ +RT_EXPORT_SYMBOL(RT_CONCAT3(RTSha3t,a_cBits,FromString)) + + +RTSHA3_DEFINE_VARIANT(224, EVP_sha3_224()); +RTSHA3_DEFINE_VARIANT(256, EVP_sha3_256()); +RTSHA3_DEFINE_VARIANT(384, EVP_sha3_384()); +RTSHA3_DEFINE_VARIANT(512, EVP_sha3_512()); + +#endif /* !alt-sha3.cpp */ |