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);