/** @file * IPRT - SHA1 digest creation */ /* * Copyright (C) 2009 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE 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. */ #ifndef ___iprt_sha_h #define ___iprt_sha_h #include RT_C_DECLS_BEGIN /** @defgroup grp_rt_sha RTSha - SHA Family of Hash Functions * @ingroup grp_rt * @{ */ /** The size of a SHA-1 hash. */ #define RTSHA1_HASH_SIZE 20 /** The length of a SHA-1 digest string. The terminator is not included. */ #define RTSHA1_DIGEST_LEN (40+1) /** * SHA-1 context. */ typedef union RTSHA1CONTEXT { uint8_t abPadding[ARCH_BITS == 32 ? 96 : 128]; #ifdef RT_SHA1_PRIVATE_CONTEXT SHA_CTX Private; #endif } RTSHA1CONTEXT; /** Pointer to an SHA-1 context. */ typedef RTSHA1CONTEXT *PRTSHA1CONTEXT; /** * Compute the SHA-1 hash of the data. * * @param pvBuf Pointer to the data. * @param cbBuf The amount of data (in bytes). * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha1(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA1_HASH_SIZE]); /** * Initializes the SHA-1 context. * * @param pCtx Pointer to the SHA-1 context. */ RTDECL(void) RTSha1Init(PRTSHA1CONTEXT pCtx); /** * Feed data into the SHA-1 computation. * * @param pCtx Pointer to the SHA-1 context. * @param pvBuf Pointer to the data. * @param cbBuf The length of the data (in bytes). */ RTDECL(void) RTSha1Update(PRTSHA1CONTEXT pCtx, const void *pvBuf, size_t cbBuf); /** * Compute the SHA-1 hash of the data. * * @param pCtx Pointer to the SHA-1 context. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha1Final(PRTSHA1CONTEXT pCtx, uint8_t pabDigest[RTSHA1_HASH_SIZE]); /** * Converts a SHA-512 hash to a digest string. * * @returns IPRT status code. * * @param pabDigest The binary digest returned by RTSha1Final or RTSha1. * @param pszDigest Where to return the stringified digest. * @param cchDigest The size of the output buffer. Should be at least * RTSHA1_STRING_LEN + 1 bytes. */ RTDECL(int) RTSha1ToString(uint8_t const pabDigest[RTSHA1_HASH_SIZE], char *pszDigest, size_t cchDigest); /** * Converts a SHA-1 hash to a digest string. * * @returns IPRT status code. * * @param pszDigest The strigified digest. Leading and trailing spaces are * ignored. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(int) RTSha1FromString(char const *pszDigest, uint8_t pabDigest[RTSHA1_HASH_SIZE]); /** * Creates a SHA1 digest for the given file. * * @returns iprt status code. * * @param pszFile Filename to create a SHA1 digest for. * @param ppszDigest On success the SHA1 digest. */ RTR3DECL(int) RTSha1Digest(const char *pszFile, char **ppszDigest); /** The size of a SHA-256 hash. */ #define RTSHA256_HASH_SIZE 32 /** The length of a SHA-256 digest string. The terminator is not included. */ #define RTSHA256_DIGEST_LEN 64 /** * SHA-256 context. */ typedef union RTSHA256CONTEXT { uint8_t abPadding[ARCH_BITS == 32 ? 112 : 160]; #ifdef RT_SHA256_PRIVATE_CONTEXT SHA256_CTX Private; #endif } RTSHA256CONTEXT; /** Pointer to an SHA-256 context. */ typedef RTSHA256CONTEXT *PRTSHA256CONTEXT; /** * Compute the SHA-256 hash of the data. * * @param pvBuf Pointer to the data. * @param cbBuf The amount of data (in bytes). * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha256(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA256_HASH_SIZE]); /** * Initializes the SHA-256 context. * * @param pCtx Pointer to the SHA-256 context. */ RTDECL(void) RTSha256Init(PRTSHA256CONTEXT pCtx); /** * Feed data into the SHA-256 computation. * * @param pCtx Pointer to the SHA-256 context. * @param pvBuf Pointer to the data. * @param cbBuf The length of the data (in bytes). */ RTDECL(void) RTSha256Update(PRTSHA256CONTEXT pCtx, const void *pvBuf, size_t cbBuf); /** * Compute the SHA-256 hash of the data. * * @param pCtx Pointer to the SHA-256 context. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha256Final(PRTSHA256CONTEXT pCtx, uint8_t pabDigest[RTSHA256_HASH_SIZE]); /** * Converts a SHA-256 hash to a digest string. * * @returns IPRT status code. * * @param pabDigest The binary digest returned by RTSha256Final or RTSha256. * @param pszDigest Where to return the stringified digest. * @param cchDigest The size of the output buffer. Should be at least * RTSHA256_STRING_LEN + 1 bytes. */ RTDECL(int) RTSha256ToString(uint8_t const pabDigest[RTSHA256_HASH_SIZE], char *pszDigest, size_t cchDigest); /** * Converts a SHA-256 hash to a digest string. * * @returns IPRT status code. * * @param pszDigest The strigified digest. Leading and trailing spaces are * ignored. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(int) RTSha256FromString(char const *pszDigest, uint8_t pabDigest[RTSHA256_HASH_SIZE]); /** The size of a SHA-512 hash. */ #define RTSHA512_HASH_SIZE 64 /** The length of a SHA-512 digest string. The terminator is not included. */ #define RTSHA512_STRING_LEN 128 /** * SHA-512 context. */ typedef union RTSHA512CONTEXT { uint8_t abPadding[ARCH_BITS == 32 ? 216 : 256]; #ifdef RT_SHA512_PRIVATE_CONTEXT SHA512_CTX Private; #endif } RTSHA512CONTEXT; /** Pointer to an SHA-512 context. */ typedef RTSHA512CONTEXT *PRTSHA512CONTEXT; /** * Compute the SHA-512 hash of the data. * * @param pvBuf Pointer to the data. * @param cbBuf The amount of data (in bytes). * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha512(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA512_HASH_SIZE]); /** * Initializes the SHA-512 context. * * @param pCtx Pointer to the SHA-512 context. */ RTDECL(void) RTSha512Init(PRTSHA512CONTEXT pCtx); /** * Feed data into the SHA-512 computation. * * @param pCtx Pointer to the SHA-512 context. * @param pvBuf Pointer to the data. * @param cbBuf The length of the data (in bytes). */ RTDECL(void) RTSha512Update(PRTSHA512CONTEXT pCtx, const void *pvBuf, size_t cbBuf); /** * Compute the SHA-512 hash of the data. * * @param pCtx Pointer to the SHA-512 context. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(void) RTSha512Final(PRTSHA512CONTEXT pCtx, uint8_t pabDigest[RTSHA512_HASH_SIZE]); /** * Converts a SHA-512 hash to a digest string. * * @returns IPRT status code. * * @param pabDigest The binary digest returned by RTSha512Final or RTSha512. * @param pszDigest Where to return the stringified digest. * @param cchDigest The size of the output buffer. Should be at least * RTSHA512_STRING_LEN + 1 bytes. */ RTDECL(int) RTSha512ToString(uint8_t const pabDigest[RTSHA512_HASH_SIZE], char *pszDigest, size_t cchDigest); /** * Converts a SHA-512 hash to a digest string. * * @returns IPRT status code. * * @param pszDigest The strigified digest. Leading and trailing spaces are * ignored. * @param pabDigest Where to store the hash. (What is passed is a pointer to * the caller's buffer.) */ RTDECL(int) RTSha512FromString(char const *pszDigest, uint8_t pabDigest[RTSHA512_HASH_SIZE]); /** @} */ RT_C_DECLS_END #endif /* ___iprt_sha1_h */