mirror of
https://github.com/openssl/openssl.git
synced 2024-11-23 18:13:39 +08:00
dce7272d08
Unfortunately in terms of fips.sources this does not mean much given the way how the .h files are added via the dependency information from the compiler. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15622)
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
|
|
* Copyright 2011-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <openssl/evp.h>
|
|
#include <openssl/rand.h>
|
|
#include "rand_local.h"
|
|
|
|
/* Implements the default OpenSSL RAND_add() method */
|
|
static int drbg_add(const void *buf, int num, double randomness)
|
|
{
|
|
EVP_RAND_CTX *drbg = RAND_get0_primary(NULL);
|
|
|
|
if (drbg == NULL || num <= 0)
|
|
return 0;
|
|
|
|
return EVP_RAND_reseed(drbg, 0, NULL, 0, buf, num);
|
|
}
|
|
|
|
/* Implements the default OpenSSL RAND_seed() method */
|
|
static int drbg_seed(const void *buf, int num)
|
|
{
|
|
return drbg_add(buf, num, num);
|
|
}
|
|
|
|
/* Implements the default OpenSSL RAND_status() method */
|
|
static int drbg_status(void)
|
|
{
|
|
EVP_RAND_CTX *drbg = RAND_get0_primary(NULL);
|
|
|
|
if (drbg == NULL)
|
|
return 0;
|
|
|
|
return EVP_RAND_get_state(drbg) == EVP_RAND_STATE_READY ? 1 : 0;
|
|
}
|
|
|
|
/* Implements the default OpenSSL RAND_bytes() method */
|
|
static int drbg_bytes(unsigned char *out, int count)
|
|
{
|
|
EVP_RAND_CTX *drbg = RAND_get0_public(NULL);
|
|
|
|
if (drbg == NULL)
|
|
return 0;
|
|
|
|
return EVP_RAND_generate(drbg, out, count, 0, 0, NULL, 0);
|
|
}
|
|
|
|
RAND_METHOD ossl_rand_meth = {
|
|
drbg_seed,
|
|
drbg_bytes,
|
|
NULL,
|
|
drbg_add,
|
|
drbg_bytes,
|
|
drbg_status
|
|
};
|
|
|
|
RAND_METHOD *RAND_OpenSSL(void)
|
|
{
|
|
return &ossl_rand_meth;
|
|
}
|