23 #ifndef MBEDTLS_ENTROPY_ALT_H
24 #define MBEDTLS_ENTROPY_ALT_H
26 #if !defined(MBEDTLS_CONFIG_FILE)
29 #include MBEDTLS_CONFIG_FILE
34 #if defined(MBEDTLS_TRNG_C)
38 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256)
40 #define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
42 #if defined(MBEDTLS_SHA256_C)
43 #define MBEDTLS_ENTROPY_SHA256_ACCUMULATOR
48 #if defined(MBEDTLS_THREADING_C)
52 #if defined(MBEDTLS_HAVEGE_C)
56 #define MBEDTLS_ERR_ENTROPY_SOURCE_FAILED -0x003C
57 #define MBEDTLS_ERR_ENTROPY_MAX_SOURCES -0x003E
58 #define MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040
59 #define MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE -0x003D
60 #define MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR -0x003F
70 #if !defined(MBEDTLS_ENTROPY_MAX_SOURCES)
71 #define MBEDTLS_ENTROPY_MAX_SOURCES 20
74 #if !defined(MBEDTLS_ENTROPY_MAX_GATHER)
75 #define MBEDTLS_ENTROPY_MAX_GATHER 128
80 #if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
81 #define MBEDTLS_ENTROPY_BLOCK_SIZE 64
83 #define MBEDTLS_ENTROPY_BLOCK_SIZE 32
86 #define MBEDTLS_ENTROPY_MAX_SEED_SIZE 1024
87 #define MBEDTLS_ENTROPY_SOURCE_MANUAL MBEDTLS_ENTROPY_MAX_SOURCES
89 #define MBEDTLS_ENTROPY_SOURCE_STRONG 1
90 #define MBEDTLS_ENTROPY_SOURCE_WEAK 0
128 #if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
135 #if defined(MBEDTLS_HAVEGE_C)
138 #if defined(MBEDTLS_THREADING_C)
139 mbedtls_threading_mutex_t mutex;
141 #if defined(MBEDTLS_TRNG_C)
180 size_t threshold,
int strong );
216 const unsigned char *data,
size_t len );
218 #if defined(MBEDTLS_FS_IO)
246 #if defined(MBEDTLS_SELF_TEST)
252 int mbedtls_entropy_self_test(
int verbose );
int(* mbedtls_entropy_f_source_ptr)(void *data, unsigned char *output, size_t len, size_t *olen)
Entropy poll callback pointer.
void * p_source
The callback data pointer.
size_t threshold
Minimum bytes required before release.
mbedtls_entropy_f_source_ptr f_source
The entropy source callback.
Compatibility names (set of defines)
int mbedtls_entropy_gather(mbedtls_entropy_context *ctx)
Trigger an extra gather poll for the accumulator (Thread-safe if MBEDTLS_THREADING_C is enabled) ...
size_t size
Amount received in bytes.
Entropy context structure.
Threading abstraction layer.
SHA-512 context structure.
void mbedtls_entropy_init(mbedtls_entropy_context *ctx)
Initialize the context.
int mbedtls_entropy_add_source(mbedtls_entropy_context *ctx, mbedtls_entropy_f_source_ptr f_source, void *p_source, size_t threshold, int strong)
Adds an entropy source to poll (Thread-safe if MBEDTLS_THREADING_C is enabled)
#define MBEDTLS_ENTROPY_MAX_SOURCES
Maximum number of sources supported.
HAVEGE: HArdware Volatile Entropy Gathering and Expansion.
SHA-256 context structure.
int mbedtls_entropy_update_manual(mbedtls_entropy_context *ctx, const unsigned char *data, size_t len)
Add data to the accumulator manually (Thread-safe if MBEDTLS_THREADING_C is enabled) ...
void mbedtls_entropy_free(mbedtls_entropy_context *ctx)
Free the data in the context.
mbedtls_sha256_context accumulator
True Random Number Generator (TRNG) driver for Silicon Labs devices.
SHA-384 and SHA-512 cryptographic hash function.
int mbedtls_entropy_func(void *data, unsigned char *output, size_t len)
Retrieve entropy from the accumulator (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE) (Thread-safe if MB...
mbedtls_trng_context trng_ctx
int strong
Is the source strong?
SHA-224 and SHA-256 cryptographic hash function.