ltc_prng_descriptor Struct Reference

#include <tomcrypt_prng.h>

Public Attributes
char *	name
int	export_size
int(*	start )(prng_state *prng)
int(*	add_entropy )(const unsigned char *in, unsigned long inlen, prng_state *prng)
int(*	ready )(prng_state *prng)
unsigned long(*	read )(unsigned char *out, unsigned long outlen, prng_state *prng)
int(*	done )(prng_state *prng)
int(*	pexport )(unsigned char *out, unsigned long *outlen, prng_state *prng)
int(*	pimport )(const unsigned char *in, unsigned long inlen, prng_state *prng)
int(*	test )(void)

Detailed Description

PRNG descriptor

Member Data Documentation

int(* ltc_prng_descriptor::add_entropy)(const unsigned char *in, unsigned long inlen, prng_state *prng)

Add entropy to the PRNG

Parameters

in	The entropy
inlen	Length of the entropy (octets)\
prng	The PRNG state

Returns

CRYPT_OK if successful

int(* ltc_prng_descriptor::done)(prng_state *prng)

Terminate a PRNG state

Parameters

prng	The PRNG state to terminate

Returns

CRYPT_OK if successful

int ltc_prng_descriptor::export_size

size in bytes of exported state

char* ltc_prng_descriptor::name

Name of the PRNG

int(* ltc_prng_descriptor::pexport)(unsigned char *out, unsigned long *outlen, prng_state *prng)

Export a PRNG state

Parameters

out	[out] The destination for the state
outlen	[in/out] The max size and resulting size of the PRNG state
prng	The PRNG to export

Returns

CRYPT_OK if successful

int(* ltc_prng_descriptor::pimport)(const unsigned char *in, unsigned long inlen, prng_state *prng)

Import a PRNG state

Parameters

in	The data to import
inlen	The length of the data to import (octets)
prng	The PRNG to initialize/import

Returns

CRYPT_OK if successful

unsigned long(* ltc_prng_descriptor::read)(unsigned char *out, unsigned long outlen, prng_state *prng)

Read from the PRNG

Parameters

out	[out] Where to store the data
outlen	Length of data desired (octets)
prng	The PRNG state to read from

Returns

Number of octets read

int(* ltc_prng_descriptor::ready)(prng_state *prng)

Ready a PRNG state to read from

Parameters

prng	The PRNG state to ready

Returns

CRYPT_OK if successful

int(* ltc_prng_descriptor::start)(prng_state *prng)

Start a PRNG state

Parameters

prng	[out] The state to initialize

Returns

CRYPT_OK if successful

int(* ltc_prng_descriptor::test)(void)

Self-test the PRNG

Returns

CRYPT_OK if successful, CRYPT_NOP if self-testing has been disabled

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The documentation for this struct was generated from the following file:

• dep/CascLib/src/libtomcrypt/src/headers/tomcrypt_prng.h