aboutsummaryrefslogtreecommitdiff
path: root/include/mbedtls/entropy.h
diff options
context:
space:
mode:
authorLibravatar vnugent <public@vaughnnugent.com>2024-04-23 18:19:31 -0400
committerLibravatar vnugent <public@vaughnnugent.com>2024-04-23 18:19:31 -0400
commit7cb7a93de4f6f5e741bc5129e3d928e44f050930 (patch)
treeae5c564a0c3c60d0b4dac13ac8e8e3ebf7906ab1 /include/mbedtls/entropy.h
parent30e8dda6cbea86bdee6d5dfe48514385d3b9f81b (diff)
refactor!: MbedTLS on Windows, switch to uint32
Diffstat (limited to 'include/mbedtls/entropy.h')
-rw-r--r--include/mbedtls/entropy.h273
1 files changed, 0 insertions, 273 deletions
diff --git a/include/mbedtls/entropy.h b/include/mbedtls/entropy.h
deleted file mode 100644
index 20fd687..0000000
--- a/include/mbedtls/entropy.h
+++ /dev/null
@@ -1,273 +0,0 @@
-/**
- * \file entropy.h
- *
- * \brief Entropy accumulator implementation
- */
-/*
- * Copyright The Mbed TLS Contributors
- * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
- */
-#ifndef MBEDTLS_ENTROPY_H
-#define MBEDTLS_ENTROPY_H
-#include "mbedtls/private_access.h"
-
-#include "mbedtls/build_info.h"
-
-#include <stddef.h>
-
-#include "md.h"
-
-#if defined(MBEDTLS_MD_CAN_SHA512) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256)
-#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
-#define MBEDTLS_ENTROPY_MD MBEDTLS_MD_SHA512
-#define MBEDTLS_ENTROPY_BLOCK_SIZE 64 /**< Block size of entropy accumulator (SHA-512) */
-#else
-#if defined(MBEDTLS_MD_CAN_SHA256)
-#define MBEDTLS_ENTROPY_SHA256_ACCUMULATOR
-#define MBEDTLS_ENTROPY_MD MBEDTLS_MD_SHA256
-#define MBEDTLS_ENTROPY_BLOCK_SIZE 32 /**< Block size of entropy accumulator (SHA-256) */
-#endif
-#endif
-
-#if defined(MBEDTLS_THREADING_C)
-#include "mbedtls/threading.h"
-#endif
-
-
-/** Critical entropy source failure. */
-#define MBEDTLS_ERR_ENTROPY_SOURCE_FAILED -0x003C
-/** No more sources can be added. */
-#define MBEDTLS_ERR_ENTROPY_MAX_SOURCES -0x003E
-/** No sources have been added to poll. */
-#define MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040
-/** No strong sources have been added to poll. */
-#define MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE -0x003D
-/** Read/write error in file. */
-#define MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR -0x003F
-
-/**
- * \name SECTION: Module settings
- *
- * The configuration options you can set for this module are in this section.
- * Either change them in mbedtls_config.h or define them on the compiler command line.
- * \{
- */
-
-#if !defined(MBEDTLS_ENTROPY_MAX_SOURCES)
-#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */
-#endif
-
-#if !defined(MBEDTLS_ENTROPY_MAX_GATHER)
-#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */
-#endif
-
-/** \} name SECTION: Module settings */
-
-#define MBEDTLS_ENTROPY_MAX_SEED_SIZE 1024 /**< Maximum size of seed we read from seed file */
-#define MBEDTLS_ENTROPY_SOURCE_MANUAL MBEDTLS_ENTROPY_MAX_SOURCES
-
-#define MBEDTLS_ENTROPY_SOURCE_STRONG 1 /**< Entropy source is strong */
-#define MBEDTLS_ENTROPY_SOURCE_WEAK 0 /**< Entropy source is weak */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief Entropy poll callback pointer
- *
- * \param data Callback-specific data pointer
- * \param output Data to fill
- * \param len Maximum size to provide
- * \param olen The actual amount of bytes put into the buffer (Can be 0)
- *
- * \return 0 if no critical failures occurred,
- * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED otherwise
- */
-typedef int (*mbedtls_entropy_f_source_ptr)(void *data, unsigned char *output, size_t len,
- size_t *olen);
-
-/**
- * \brief Entropy source state
- */
-typedef struct mbedtls_entropy_source_state {
- mbedtls_entropy_f_source_ptr MBEDTLS_PRIVATE(f_source); /**< The entropy source callback */
- void *MBEDTLS_PRIVATE(p_source); /**< The callback data pointer */
- size_t MBEDTLS_PRIVATE(size); /**< Amount received in bytes */
- size_t MBEDTLS_PRIVATE(threshold); /**< Minimum bytes required before release */
- int MBEDTLS_PRIVATE(strong); /**< Is the source strong? */
-}
-mbedtls_entropy_source_state;
-
-/**
- * \brief Entropy context structure
- */
-typedef struct mbedtls_entropy_context {
- mbedtls_md_context_t MBEDTLS_PRIVATE(accumulator);
- int MBEDTLS_PRIVATE(accumulator_started); /* 0 after init.
- * 1 after the first update.
- * -1 after free. */
- int MBEDTLS_PRIVATE(source_count); /* Number of entries used in source. */
- mbedtls_entropy_source_state MBEDTLS_PRIVATE(source)[MBEDTLS_ENTROPY_MAX_SOURCES];
-#if defined(MBEDTLS_THREADING_C)
- mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); /*!< mutex */
-#endif
-#if defined(MBEDTLS_ENTROPY_NV_SEED)
- int MBEDTLS_PRIVATE(initial_entropy_run);
-#endif
-}
-mbedtls_entropy_context;
-
-#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
-/**
- * \brief Platform-specific entropy poll callback
- */
-int mbedtls_platform_entropy_poll(void *data,
- unsigned char *output, size_t len, size_t *olen);
-#endif
-
-/**
- * \brief Initialize the context
- *
- * \param ctx Entropy context to initialize
- */
-void mbedtls_entropy_init(mbedtls_entropy_context *ctx);
-
-/**
- * \brief Free the data in the context
- *
- * \param ctx Entropy context to free
- */
-void mbedtls_entropy_free(mbedtls_entropy_context *ctx);
-
-/**
- * \brief Adds an entropy source to poll
- * (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param ctx Entropy context
- * \param f_source Entropy function
- * \param p_source Function data
- * \param threshold Minimum required from source before entropy is released
- * ( with mbedtls_entropy_func() ) (in bytes)
- * \param strong MBEDTLS_ENTROPY_SOURCE_STRONG or
- * MBEDTLS_ENTROPY_SOURCE_WEAK.
- * At least one strong source needs to be added.
- * Weaker sources (such as the cycle counter) can be used as
- * a complement.
- *
- * \return 0 if successful or MBEDTLS_ERR_ENTROPY_MAX_SOURCES
- */
-int mbedtls_entropy_add_source(mbedtls_entropy_context *ctx,
- mbedtls_entropy_f_source_ptr f_source, void *p_source,
- size_t threshold, int strong);
-
-/**
- * \brief Trigger an extra gather poll for the accumulator
- * (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param ctx Entropy context
- *
- * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
- */
-int mbedtls_entropy_gather(mbedtls_entropy_context *ctx);
-
-/**
- * \brief Retrieve entropy from the accumulator
- * (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE)
- * (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param data Entropy context
- * \param output Buffer to fill
- * \param len Number of bytes desired, must be at most MBEDTLS_ENTROPY_BLOCK_SIZE
- *
- * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
- */
-int mbedtls_entropy_func(void *data, unsigned char *output, size_t len);
-
-/**
- * \brief Add data to the accumulator manually
- * (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param ctx Entropy context
- * \param data Data to add
- * \param len Length of data
- *
- * \return 0 if successful
- */
-int mbedtls_entropy_update_manual(mbedtls_entropy_context *ctx,
- const unsigned char *data, size_t len);
-
-#if defined(MBEDTLS_ENTROPY_NV_SEED)
-/**
- * \brief Trigger an update of the seed file in NV by using the
- * current entropy pool.
- *
- * \param ctx Entropy context
- *
- * \return 0 if successful
- */
-int mbedtls_entropy_update_nv_seed(mbedtls_entropy_context *ctx);
-#endif /* MBEDTLS_ENTROPY_NV_SEED */
-
-#if defined(MBEDTLS_FS_IO)
-/**
- * \brief Write a seed file
- *
- * \param ctx Entropy context
- * \param path Name of the file
- *
- * \return 0 if successful,
- * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, or
- * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
- */
-int mbedtls_entropy_write_seed_file(mbedtls_entropy_context *ctx, const char *path);
-
-/**
- * \brief Read and update a seed file. Seed is added to this
- * instance. No more than MBEDTLS_ENTROPY_MAX_SEED_SIZE bytes are
- * read from the seed file. The rest is ignored.
- *
- * \param ctx Entropy context
- * \param path Name of the file
- *
- * \return 0 if successful,
- * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error,
- * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
- */
-int mbedtls_entropy_update_seed_file(mbedtls_entropy_context *ctx, const char *path);
-#endif /* MBEDTLS_FS_IO */
-
-#if defined(MBEDTLS_SELF_TEST)
-/**
- * \brief Checkup routine
- *
- * This module self-test also calls the entropy self-test,
- * mbedtls_entropy_source_self_test();
- *
- * \return 0 if successful, or 1 if a test failed
- */
-int mbedtls_entropy_self_test(int verbose);
-
-#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
-/**
- * \brief Checkup routine
- *
- * Verifies the integrity of the hardware entropy source
- * provided by the function 'mbedtls_hardware_poll()'.
- *
- * Note this is the only hardware entropy source that is known
- * at link time, and other entropy sources configured
- * dynamically at runtime by the function
- * mbedtls_entropy_add_source() will not be tested.
- *
- * \return 0 if successful, or 1 if a test failed
- */
-int mbedtls_entropy_source_self_test(int verbose);
-#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */
-#endif /* MBEDTLS_SELF_TEST */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* entropy.h */