hcrypto_rand man page

hcrypto_rand — RAND crypto functions

Functions

void RAND_seed (const void *indata, size_t size)

int RAND_bytes (void *outdata, size_t size)

void RAND_cleanup (void)

void RAND_add (const void *indata, size_t size, double entropi)

int RAND_pseudo_bytes (void *outdata, size_t size)

int RAND_status (void)

int RAND_set_rand_method (const RAND_METHOD *meth)

const RAND_METHOD * RAND_get_rand_method (void)

int RAND_set_rand_engine (ENGINE *engine)

int RAND_load_file (const char *filename, size_t size)

int RAND_write_file (const char *filename)

const char * RAND_file_name (char *filename, size_t size)

Detailed Description

See the RAND - random number for description and examples.

Function Documentation

void RAND_add (const void * indata, size_t size, double entropi)

Seed that random number generator. Secret material can securely be feed into the function, they will never be returned.

Parameters:

indata the input data.
size size of in data.
entropi entropi in data.

int RAND_bytes (void * outdata, size_t size)

Get a random block from the random generator, can be used for key material.

Parameters:

outdata random data
size length random data

Returns:

1 on success, 0 on failure.

void RAND_cleanup (void)

Reset and free memory used by the random generator.

const char* RAND_file_name (char * filename, size_t size)

Return the default random state filename for a user to use for RAND_load_file(), and RAND_write_file().

Parameters:

filename buffer to hold file name.
size size of buffer filename.

Returns:

the buffer filename or NULL on failure.

const RAND_METHOD* RAND_get_rand_method (void)

Get the default random method.

int RAND_load_file (const char * filename, size_t size)

Load a a file and feed it into RAND_seed().

Parameters:

filename name of file to read.
size minimum size to read.

int RAND_pseudo_bytes (void * outdata, size_t size)

Get a random block from the random generator, should NOT be used for key material.

Parameters:

outdata random data
size length random data

Returns:

1 on success, 0 on failure.

void RAND_seed (const void * indata, size_t size)

Seed that random number generator. Secret material can securely be feed into the function, they will never be returned.

Parameters:

indata seed data
size length seed data

int RAND_set_rand_engine (ENGINE * engine)

Set the default random method from engine.

Parameters:

engine use engine, if NULL is passed it, old method and engine is cleared.

Returns:

1 on success, 0 on failure.

int RAND_set_rand_method (const RAND_METHOD * meth)

Set the default random method.

Parameters:

meth set the new default method.

Returns:

1 on success.

int RAND_status (void)

Return status of the random generator

Returns:

1 if the random generator can deliver random data.

int RAND_write_file (const char * filename)

Write of random numbers to a file to store for later initiation with RAND_load_file().

Parameters:

filename name of file to write.

Returns:

1 on success and non-one on failure.

Author

Generated automatically by Doxygen for Heimdal crypto library from the source code.

Referenced By

BN_rand.3ssl(3), mailx(1), rand.3ssl(3), RAND_add.3ssl(3), RAND_bytes.3ssl(3), RAND_egd.3ssl(3), RAND_load_file.3ssl(3), SSL_get_client_random.3ssl(3), SSL_library_init.3ssl(3), sslrand.1ssl(1).

RAND_add(3), RAND_bytes(3), RAND_cleanup(3), RAND_file_name(3), RAND_get_rand_method(3), RAND_load_file(3), RAND_pseudo_bytes(3), RAND_seed(3), RAND_set_rand_engine(3), RAND_set_rand_method(3), RAND_status(3) and RAND_write_file(3) are aliases of hcrypto_rand(3).

Mon Aug 10 2015 Version 1.6rc2 Heimdal crypto library