+++ /dev/null
-/* ====================================================================
- * Copyright (c) 2011 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#define OPENSSL_FIPSAPI
-
-#include <openssl/crypto.h>
-#include <openssl/rand.h>
-#include <openssl/err.h>
-#include <openssl/fips.h>
-#include <openssl/fips_rand.h>
-#include "e_os.h"
-
-/* FIPS API for PRNG use. Similar to RAND functionality but without
- * ENGINE and additional checking for non-FIPS rand methods.
- */
-
-static const RAND_METHOD *fips_rand_meth = NULL;
-static int fips_approved_rand_meth = 0;
-static int fips_rand_bits = 0;
-
-/* Allows application to override number of bits and uses non-FIPS methods */
-void FIPS_rand_set_bits(int nbits)
- {
- fips_rand_bits = nbits;
- }
-
-int FIPS_rand_set_method(const RAND_METHOD *meth)
- {
- if (!fips_rand_bits)
- {
- if (meth == FIPS_drbg_method())
- fips_approved_rand_meth = 1;
- else if (meth == FIPS_x931_method())
- fips_approved_rand_meth = 2;
- else
- {
- fips_approved_rand_meth = 0;
- if (FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_SET_METHOD,
- FIPS_R_NON_FIPS_METHOD);
- return 0;
- }
- }
- }
- fips_rand_meth = meth;
- return 1;
- }
-
-const RAND_METHOD *FIPS_rand_get_method(void)
- {
- return fips_rand_meth;
- }
-
-void FIPS_rand_seed(const void *buf, int num)
- {
- if (!fips_approved_rand_meth && FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_SEED, FIPS_R_NON_FIPS_METHOD);
- return;
- }
- if (fips_rand_meth && fips_rand_meth->seed)
- fips_rand_meth->seed(buf,num);
- }
-
-void FIPS_rand_add(const void *buf, int num, double entropy)
- {
- if (!fips_approved_rand_meth && FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_ADD, FIPS_R_NON_FIPS_METHOD);
- return;
- }
- if (fips_rand_meth && fips_rand_meth->add)
- fips_rand_meth->add(buf,num,entropy);
- }
-
-int FIPS_rand_bytes(unsigned char *buf, int num)
- {
- if (!fips_approved_rand_meth && FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_BYTES, FIPS_R_NON_FIPS_METHOD);
- return 0;
- }
- if (fips_rand_meth && fips_rand_meth->bytes)
- return fips_rand_meth->bytes(buf,num);
- return 0;
- }
-
-int FIPS_rand_pseudo_bytes(unsigned char *buf, int num)
- {
- if (!fips_approved_rand_meth && FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_PSEUDO_BYTES, FIPS_R_NON_FIPS_METHOD);
- return 0;
- }
- if (fips_rand_meth && fips_rand_meth->pseudorand)
- return fips_rand_meth->pseudorand(buf,num);
- return -1;
- }
-
-int FIPS_rand_status(void)
- {
- if (!fips_approved_rand_meth && FIPS_module_mode())
- {
- FIPSerr(FIPS_F_FIPS_RAND_STATUS, FIPS_R_NON_FIPS_METHOD);
- return 0;
- }
- if (fips_rand_meth && fips_rand_meth->status)
- return fips_rand_meth->status();
- return 0;
- }
-
-/* Return instantiated strength of PRNG. For DRBG this is an internal
- * parameter. For X9.31 PRNG it is 80 bits (from SP800-131). Any other
- * type of PRNG is not approved and returns 0 in FIPS mode and maximum
- * 256 outside FIPS mode.
- */
-
-int FIPS_rand_strength(void)
- {
- if (fips_rand_bits)
- return fips_rand_bits;
- if (fips_approved_rand_meth == 1)
- return FIPS_drbg_get_strength(FIPS_get_default_drbg());
- else if (fips_approved_rand_meth == 2)
- return 80;
- else if (fips_approved_rand_meth == 0)
- {
- if (FIPS_module_mode())
- return 0;
- else
- return 256;
- }
- return 0;
- }
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