1
/* ====================================================================
2
* Copyright (c) 2003 The OpenSSL Project. All rights reserved.
4
* Redistribution and use in source and binary forms, with or without
5
* modification, are permitted provided that the following conditions
8
* 1. Redistributions of source code must retain the above copyright
9
* notice, this list of conditions and the following disclaimer.
11
* 2. Redistributions in binary form must reproduce the above copyright
12
* notice, this list of conditions and the following disclaimer in
13
* the documentation and/or other materials provided with the
16
* 3. All advertising materials mentioning features or use of this
17
* software must display the following acknowledgment:
18
* "This product includes software developed by the OpenSSL Project
19
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22
* endorse or promote products derived from this software without
23
* prior written permission. For written permission, please contact
24
* openssl-core@openssl.org.
26
* 5. Products derived from this software may not be called "OpenSSL"
27
* nor may "OpenSSL" appear in their names without prior written
28
* permission of the OpenSSL Project.
30
* 6. Redistributions of any form whatsoever must retain the following
32
* "This product includes software developed by the OpenSSL Project
33
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46
* OF THE POSSIBILITY OF SUCH DAMAGE.
51
#include <openssl/rand.h>
52
#include <openssl/fips_rand.h>
53
#include <openssl/err.h>
54
#include <openssl/bio.h>
55
#include <openssl/hmac.h>
56
#include <openssl/rsa.h>
59
#include "fips_locl.h"
63
#include <openssl/fips.h>
69
static int fips_selftest_fail;
71
static const void *fips_rand_check;
73
static void fips_set_mode(int onoff)
75
int owning_thread = fips_is_owning_thread();
77
if (fips_is_started())
79
if (!owning_thread) fips_w_lock();
81
if (!owning_thread) fips_w_unlock();
85
static void fips_set_rand_check(const void *rand_check)
87
int owning_thread = fips_is_owning_thread();
89
if (fips_is_started())
91
if (!owning_thread) fips_w_lock();
92
fips_rand_check = rand_check;
93
if (!owning_thread) fips_w_unlock();
100
int owning_thread = fips_is_owning_thread();
102
if (fips_is_started())
104
if (!owning_thread) fips_r_lock();
106
if (!owning_thread) fips_r_unlock();
111
const void *FIPS_rand_check(void)
114
int owning_thread = fips_is_owning_thread();
116
if (fips_is_started())
118
if (!owning_thread) fips_r_lock();
119
ret = fips_rand_check;
120
if (!owning_thread) fips_r_unlock();
125
int FIPS_selftest_failed(void)
128
if (fips_is_started())
130
int owning_thread = fips_is_owning_thread();
132
if (!owning_thread) fips_r_lock();
133
ret = fips_selftest_fail;
134
if (!owning_thread) fips_r_unlock();
139
/* Selftest failure fatal exit routine. This will be called
140
* during *any* cryptographic operation. It has the minimum
141
* overhead possible to avoid too big a performance hit.
144
void FIPS_selftest_check(void)
146
if (fips_selftest_fail)
148
OpenSSLDie(__FILE__,__LINE__, "FATAL FIPS SELFTEST FAILURE");
152
void fips_set_selftest_fail(void)
154
fips_selftest_fail = 1;
160
return FIPS_selftest_sha1()
161
&& FIPS_selftest_hmac()
162
&& FIPS_selftest_aes()
163
&& FIPS_selftest_des()
164
&& FIPS_selftest_rsa()
165
&& FIPS_selftest_dsa();
168
extern const void *FIPS_text_start(), *FIPS_text_end();
169
extern const unsigned char FIPS_rodata_start[], FIPS_rodata_end[];
170
unsigned char FIPS_signature [20] = { 0 };
171
static const char FIPS_hmac_key[]="etaonrishdlcupfm";
173
unsigned int FIPS_incore_fingerprint(unsigned char *sig,unsigned int len)
175
const unsigned char *p1 = FIPS_text_start();
176
const unsigned char *p2 = FIPS_text_end();
177
const unsigned char *p3 = FIPS_rodata_start;
178
const unsigned char *p4 = FIPS_rodata_end;
182
HMAC_Init(&c,FIPS_hmac_key,strlen(FIPS_hmac_key),EVP_sha1());
184
/* detect overlapping regions */
185
if (p1<=p3 && p2>=p3)
186
p3=p1, p4=p2>p4?p2:p4, p1=NULL, p2=NULL;
187
else if (p3<=p1 && p4>=p1)
188
p3=p3, p4=p2>p4?p2:p4, p1=NULL, p2=NULL;
191
HMAC_Update(&c,p1,(size_t)p2-(size_t)p1);
193
if (FIPS_signature>=p3 && FIPS_signature<p4)
196
HMAC_Update(&c,p3,(size_t)FIPS_signature-(size_t)p3);
197
p3 = FIPS_signature+sizeof(FIPS_signature);
199
HMAC_Update(&c,p3,(size_t)p4-(size_t)p3);
202
HMAC_Update(&c,p3,(size_t)p4-(size_t)p3);
204
HMAC_Final(&c,sig,&len);
205
HMAC_CTX_cleanup(&c);
210
int FIPS_check_incore_fingerprint(void)
212
unsigned char sig[EVP_MAX_MD_SIZE];
214
#if defined(__sgi) && (defined(__mips) || defined(mips))
215
extern int __dso_displacement[];
217
extern int OPENSSL_NONPIC_relocated;
220
if (FIPS_text_start()==NULL)
222
FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_UNSUPPORTED_PLATFORM);
226
len=FIPS_incore_fingerprint (sig,sizeof(sig));
228
if (len!=sizeof(FIPS_signature) ||
229
memcmp(FIPS_signature,sig,sizeof(FIPS_signature)))
231
if (FIPS_signature>=FIPS_rodata_start && FIPS_signature<FIPS_rodata_end)
232
FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH_SEGMENT_ALIASING);
233
#if defined(__sgi) && (defined(__mips) || defined(mips))
234
else if (__dso_displacement!=NULL)
236
else if (OPENSSL_NONPIC_relocated)
238
FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH_NONPIC_RELOCATED);
240
FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH);
247
int FIPS_mode_set(int onoff)
249
int fips_set_owning_thread();
250
int fips_clear_owning_thread();
255
fips_set_owning_thread();
259
unsigned char buf[48];
261
fips_selftest_fail = 0;
263
/* Don't go into FIPS mode twice, just so we can do automagic
267
FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_FIPS_MODE_ALREADY_SET);
268
fips_selftest_fail = 1;
273
#ifdef OPENSSL_IA32_SSE2
274
if ((OPENSSL_ia32cap & (1<<25|1<<26)) != (1<<25|1<<26))
276
FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_UNSUPPORTED_PLATFORM);
277
fips_selftest_fail = 1;
283
if(fips_signature_witness() != FIPS_signature)
285
FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_CONTRADICTING_EVIDENCE);
286
fips_selftest_fail = 1;
291
if(!FIPS_check_incore_fingerprint())
293
fips_selftest_fail = 1;
298
/* Perform RNG KAT before seeding */
299
if (!FIPS_selftest_rng())
301
fips_selftest_fail = 1;
306
/* automagically seed PRNG if not already seeded */
307
if(!FIPS_rand_status())
309
if(RAND_bytes(buf,sizeof buf) <= 0)
311
fips_selftest_fail = 1;
315
FIPS_rand_set_key(buf,32);
316
FIPS_rand_seed(buf+32,16);
319
/* now switch into FIPS mode */
320
fips_set_rand_check(FIPS_rand_method());
321
RAND_set_rand_method(FIPS_rand_method());
326
fips_selftest_fail = 1;
334
fips_selftest_fail = 0;
337
fips_clear_owning_thread();
342
void fips_w_lock(void) { CRYPTO_w_lock(CRYPTO_LOCK_FIPS); }
343
void fips_w_unlock(void) { CRYPTO_w_unlock(CRYPTO_LOCK_FIPS); }
344
void fips_r_lock(void) { CRYPTO_r_lock(CRYPTO_LOCK_FIPS); }
345
void fips_r_unlock(void) { CRYPTO_r_unlock(CRYPTO_LOCK_FIPS); }
347
static int fips_started = 0;
348
static unsigned long fips_thread = 0;
350
void fips_set_started(void)
355
int fips_is_started(void)
360
int fips_is_owning_thread(void)
364
if (fips_is_started())
366
CRYPTO_r_lock(CRYPTO_LOCK_FIPS2);
367
if (fips_thread != 0 && fips_thread == CRYPTO_thread_id())
369
CRYPTO_r_unlock(CRYPTO_LOCK_FIPS2);
374
int fips_set_owning_thread(void)
378
if (fips_is_started())
380
CRYPTO_w_lock(CRYPTO_LOCK_FIPS2);
381
if (fips_thread == 0)
383
fips_thread = CRYPTO_thread_id();
386
CRYPTO_w_unlock(CRYPTO_LOCK_FIPS2);
391
int fips_clear_owning_thread(void)
395
if (fips_is_started())
397
CRYPTO_w_lock(CRYPTO_LOCK_FIPS2);
398
if (fips_thread == CRYPTO_thread_id())
403
CRYPTO_w_unlock(CRYPTO_LOCK_FIPS2);
408
unsigned char *fips_signature_witness(void)
410
extern unsigned char FIPS_signature[];
411
return FIPS_signature;
414
/* Generalized public key test routine. Signs and verifies the data
415
* supplied in tbs using mesage digest md and setting option digest
416
* flags md_flags. If the 'kat' parameter is not NULL it will
417
* additionally check the signature matches it: a known answer test
418
* The string "fail_str" is used for identification purposes in case
422
int fips_pkey_signature_test(EVP_PKEY *pkey,
423
const unsigned char *tbs, int tbslen,
424
const unsigned char *kat, unsigned int katlen,
425
const EVP_MD *digest, unsigned int md_flags,
426
const char *fail_str)
429
unsigned char sigtmp[256], *sig = sigtmp;
432
EVP_MD_CTX_init(&mctx);
434
if ((pkey->type == EVP_PKEY_RSA)
435
&& (RSA_size(pkey->pkey.rsa) > sizeof(sigtmp)))
437
sig = OPENSSL_malloc(RSA_size(pkey->pkey.rsa));
440
FIPSerr(FIPS_F_FIPS_PKEY_SIGNATURE_TEST,ERR_R_MALLOC_FAILURE);
446
tbslen = strlen((char *)tbs);
449
M_EVP_MD_CTX_set_flags(&mctx, md_flags);
451
if (!EVP_SignInit_ex(&mctx, digest, NULL))
453
if (!EVP_SignUpdate(&mctx, tbs, tbslen))
455
if (!EVP_SignFinal(&mctx, sig, &siglen, pkey))
458
if (kat && ((siglen != katlen) || memcmp(kat, sig, katlen)))
461
if (!EVP_VerifyInit_ex(&mctx, digest, NULL))
463
if (!EVP_VerifyUpdate(&mctx, tbs, tbslen))
465
ret = EVP_VerifyFinal(&mctx, sig, siglen, pkey);
470
EVP_MD_CTX_cleanup(&mctx);
473
FIPSerr(FIPS_F_FIPS_PKEY_SIGNATURE_TEST,FIPS_R_TEST_FAILURE);
475
ERR_add_error_data(2, "Type=", fail_str);
481
/* Generalized symmetric cipher test routine. Encrypt data, verify result
482
* against known answer, decrypt and compare with original plaintext.
485
int fips_cipher_test(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
486
const unsigned char *key,
487
const unsigned char *iv,
488
const unsigned char *plaintext,
489
const unsigned char *ciphertext,
492
unsigned char pltmp[FIPS_MAX_CIPHER_TEST_SIZE];
493
unsigned char citmp[FIPS_MAX_CIPHER_TEST_SIZE];
494
OPENSSL_assert(len <= FIPS_MAX_CIPHER_TEST_SIZE);
495
if (EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, 1) <= 0)
497
EVP_Cipher(ctx, citmp, plaintext, len);
498
if (memcmp(citmp, ciphertext, len))
500
if (EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, 0) <= 0)
502
EVP_Cipher(ctx, pltmp, citmp, len);
503
if (memcmp(pltmp, plaintext, len))
509
/* The purpose of this is to ensure the error code exists and the function
510
* name is to keep the error checking script quiet
512
void hash_final(void)
514
FIPSerr(FIPS_F_HASH_FINAL,FIPS_R_NON_FIPS_METHOD);