algo_entropy_fractional.c File Reference

#include <rz_hash.h>
#include <rz_util/rz_assert.h>
#include "../algorithms/entropy/entropy.h"

Go to the source code of this file.

Functions
static void *	plugin_entropy_context_new ()
static void	plugin_entropy_context_free (void *context)
static RzHashSize	plugin_entropy_digest_size (void *context)
static RzHashSize	plugin_entropy_block_size (void *context)
static bool	plugin_entropy_init (void *context)
static bool	plugin_entropy_update (void *context, const ut8 *data, ut64 size)
static bool	plugin_entropy_final (void *context, ut8 *digest)
static bool	plugin_entropy_small_block (const ut8 *data, ut64 size, ut8 **digest, RzHashSize *digest_size)

Variables
RzHashPlugin	rz_hash_plugin_entropy_fract
RZ_API RzLibStruct	rizin_plugin

Function Documentation

plugin_entropy_block_size()

static RzHashSize plugin_entropy_block_size ( void *  context )

static

Definition at line 21 of file algo_entropy_fractional.c.

                                                           {
    return 0;
}

plugin_entropy_context_free()

static void plugin_entropy_context_free ( void *  context )

static

Definition at line 13 of file algo_entropy_fractional.c.

                                                       {
    free(context);
}

References free().

plugin_entropy_context_new()

static void* plugin_entropy_context_new ( )

static

Definition at line 9 of file algo_entropy_fractional.c.

                                          {
    return RZ_NEW0(RzEntropy);
}

References RZ_NEW0.

plugin_entropy_digest_size()

static RzHashSize plugin_entropy_digest_size ( void *  context )

static

Definition at line 17 of file algo_entropy_fractional.c.

                                                            {
    return sizeof(double);
}

plugin_entropy_final()

static bool plugin_entropy_final ( void *  context, ut8 *  digest  )

static

Definition at line 39 of file algo_entropy_fractional.c.

                                                             {
    rz_return_val_if_fail(context && digest, false);
 
    rz_entropy_final(digest, (RzEntropy *)context, true);
    return true;
}

References rz_entropy_final(), and rz_return_val_if_fail.

plugin_entropy_init()

static bool plugin_entropy_init ( void *  context )

static

Definition at line 25 of file algo_entropy_fractional.c.

                                               {
    rz_return_val_if_fail(context, false);
 
    rz_entropy_init((RzEntropy *)context);
    return true;
}

References rz_entropy_init(), and rz_return_val_if_fail.

plugin_entropy_small_block()

static bool plugin_entropy_small_block ( const ut8 *  data, ut64  size, ut8 **  digest, RzHashSize *  digest_size  )

static

Definition at line 46 of file algo_entropy_fractional.c.

                                                                                                          {
    rz_return_val_if_fail(data && digest, false);
    ut8 *dgst = malloc(sizeof(double));
    if (!dgst) {
        return false;
    }
 
    RzEntropy ctx;
    rz_entropy_init(&ctx);
    rz_entropy_update(&ctx, data, size);
    rz_entropy_final(dgst, &ctx, true);
 
    *digest = dgst;
    if (digest_size) {
        *digest_size = sizeof(double);
    }
    return true;
}

References malloc(), rz_entropy_final(), rz_entropy_init(), rz_entropy_update(), and rz_return_val_if_fail.

plugin_entropy_update()

static bool plugin_entropy_update ( void *  context, const ut8 *  data, ut64  size  )

static

Definition at line 32 of file algo_entropy_fractional.c.

                                                                             {
    rz_return_val_if_fail(context && data, false);
 
    rz_entropy_update((RzEntropy *)context, data, size);
    return true;
}

References rz_entropy_update(), and rz_return_val_if_fail.

Variable Documentation

rizin_plugin

RZ_API RzLibStruct rizin_plugin

Initial value:

= {
    .type = RZ_LIB_TYPE_HASH,
    .data = &rz_hash_plugin_entropy_fract,
    .version = RZ_VERSION
}

Definition at line 81 of file algo_entropy_fractional.c.

rz_hash_plugin_entropy_fract

RzHashPlugin rz_hash_plugin_entropy_fract

Initial value:

= {
    .name = "entropy_fract",
    .license = "LGPL3",
    .author = "deroad",
    .support_hmac = false,
    .context_new = plugin_entropy_context_new,
    .context_free = plugin_entropy_context_free,
    .digest_size = plugin_entropy_digest_size,
    .block_size = plugin_entropy_block_size,
    .init = plugin_entropy_init,
    .update = plugin_entropy_update,
    .final = plugin_entropy_final,
    .small_block = plugin_entropy_small_block,
}

Definition at line 65 of file algo_entropy_fractional.c.

Referenced by rz_hash_entropy_fraction().