145 lines
3.8 KiB
C++
145 lines
3.8 KiB
C++
/******************************************************************************/
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/* SlunkCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
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/* This work has been released under the CC0 1.0 Universal license! */
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/******************************************************************************/
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#ifndef INC_SLUNKCRYPT_H
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#define INC_SLUNKCRYPT_H
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/*
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* Compiler check
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*/
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#if defined(__cplusplus) && (__cplusplus < 201103L) && (!defined(_MSVC_LANG) || (_MSVC_LANG < 201103L))
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#error This file requires compiler and library support for the ISO C++11 standard.
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#elif !defined(__cplusplus) && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) && (!defined(_MSC_VER) || (_MSC_VER < 1600))
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#error This file requires compiler and library support for the ISO C99 standard.
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#endif
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/*
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* Build options
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*/
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#ifndef SLUNKCRYPT_SHARED
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#define SLUNKCRYPT_SHARED 0
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#endif
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#ifndef SLUNKCRYPT_EXPORT
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#define SLUNKCRYPT_EXPORT 0
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#endif
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/*
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* DLL support
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*/
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#if defined(_MSC_VER) && SLUNKCRYPT_SHARED
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#if SLUNKCRYPT_EXPORT
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#define SLUNKCRYPT_API __declspec(dllexport)
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#else
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#define SLUNKCRYPT_API __declspec(dllimport)
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#endif
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#else
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#define SLUNKCRYPT_API
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#endif
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/*
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* C++ support
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*/
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#ifndef __cplusplus
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#include <stdlib.h>
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#include <stdint.h>
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#else
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#include <cstdlib>
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#include <cstdint>
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extern "C" {
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#endif
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/*
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* Opaque handle to internal state
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*/
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typedef uintptr_t slunkcrypt_t;
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#define SLUNKCRYPT_NULL ((slunkcrypt_t)NULL)
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/*
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* Mode of operation
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*/
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static const int SLUNKCRYPT_ENCRYPT = 0;
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static const int SLUNKCRYPT_DECRYPT = 1;
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/*
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* Error codes
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*/
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static const int SLUNKCRYPT_SUCCESS = 0;
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static const int SLUNKCRYPT_FAILURE = -1;
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static const int SLUNKCRYPT_ABORTED = -2;
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/*
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* Limits
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*/
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static const size_t SLUNKCRYPT_PWDLEN_MIN = 8U;
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static const size_t SLUNKCRYPT_PWDLEN_MAX = 256U;
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/*
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* Optional parameters
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*/
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static const uint16_t SLUNKCRYPT_PARAM_VERSION = 1U;
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typedef struct
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{
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uint16_t version; /* Must set to SLUNKCRYPT_PARAM_VERSION */
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size_t thread_count; /* Number of threads, set to 0 for auto-detection */
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}
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slunkparam_t;
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/*
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* Version info
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*/
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SLUNKCRYPT_API extern const uint16_t SLUNKCRYPT_VERSION_MAJOR;
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SLUNKCRYPT_API extern const uint16_t SLUNKCRYPT_VERSION_MINOR;
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SLUNKCRYPT_API extern const uint16_t SLUNKCRYPT_VERSION_PATCH;
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/*
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* Build date and time
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*/
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SLUNKCRYPT_API extern const char *const SLUNKCRYPT_BUILD;
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/*
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* Configuration
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*/
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SLUNKCRYPT_API extern const int SLUNKCRYPT_HAVE_THREADS;
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/*
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* Abort flag
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*/
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SLUNKCRYPT_API extern volatile int g_slunkcrypt_abort_flag;
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/*
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* Nonce generator
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*/
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SLUNKCRYPT_API int slunkcrypt_generate_nonce(uint64_t *const nonce);
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/*
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* Allocate, reset or free state
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*/
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SLUNKCRYPT_API slunkcrypt_t slunkcrypt_alloc(const uint64_t nonce, const uint8_t *const passwd, const size_t passwd_len, const int mode);
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SLUNKCRYPT_API slunkcrypt_t slunkcrypt_alloc_ext(const uint64_t nonce, const uint8_t *const passwd, const size_t passwd_len, const int mode, const slunkparam_t *const param);
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SLUNKCRYPT_API int slunkcrypt_reset(const slunkcrypt_t context, const uint64_t nonce, const uint8_t *const passwd, const size_t passwd_len, const int mode);
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SLUNKCRYPT_API void slunkcrypt_free(const slunkcrypt_t context);
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/*
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* Encryption routines
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*/
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SLUNKCRYPT_API int slunkcrypt_process(const slunkcrypt_t context, const uint8_t *const input, uint8_t *const output, size_t length);
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SLUNKCRYPT_API int slunkcrypt_inplace(const slunkcrypt_t context, uint8_t *const buffer, size_t length);
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/*
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* Auxiliary functions
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*/
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SLUNKCRYPT_API size_t slunkcrypt_random_bytes(uint8_t *const buffer, const size_t length);
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SLUNKCRYPT_API void slunkcrypt_bzero(void *const buffer, const size_t length);
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/*
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* Helper macros
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*/
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#define SLUNKCRYPT_SAFE_FREE(X) do { if((X) != SLUNKCRYPT_NULL) { slunkcrypt_free((X)); X = SLUNKCRYPT_NULL; } } while(0)
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#ifdef __cplusplus
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}
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#endif
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#endif
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