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.
50 #include <openssl/fips.h>
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>
58 #include "fips_locl.h"
66 static int fips_md5_allowed = 0;
67 static int fips_selftest_fail = 0;
69 void FIPS_allow_md5(int onoff)
71 if (fips_is_started())
73 int owning_thread = fips_is_owning_thread();
75 if (!owning_thread) CRYPTO_w_lock(CRYPTO_LOCK_FIPS);
76 fips_md5_allowed = onoff;
77 if (!owning_thread) CRYPTO_w_unlock(CRYPTO_LOCK_FIPS);
81 int FIPS_md5_allowed(void)
84 if (fips_is_started())
86 int owning_thread = fips_is_owning_thread();
88 if (!owning_thread) CRYPTO_r_lock(CRYPTO_LOCK_FIPS);
89 ret = fips_md5_allowed;
90 if (!owning_thread) CRYPTO_r_unlock(CRYPTO_LOCK_FIPS);
95 int FIPS_selftest_failed(void)
98 if (fips_is_started())
100 int owning_thread = fips_is_owning_thread();
102 if (!owning_thread) CRYPTO_r_lock(CRYPTO_LOCK_FIPS);
103 ret = fips_selftest_fail;
104 if (!owning_thread) CRYPTO_r_unlock(CRYPTO_LOCK_FIPS);
111 ERR_load_crypto_strings();
113 return FIPS_selftest_sha1()
114 && FIPS_selftest_aes()
115 && FIPS_selftest_des()
116 && FIPS_selftest_rsa()
117 && FIPS_selftest_dsa();
120 static int FIPS_check_exe(const char *path)
122 unsigned char buf[1024];
125 unsigned char mdbuf[EVP_MAX_MD_SIZE];
127 static char key[]="etaonrishdlcupfm";
133 FIPSerr(FIPS_F_FIPS_CHECK_EXE,FIPS_R_CANNOT_READ_EXE);
136 HMAC_Init(&hmac,key,strlen(key),EVP_sha1());
139 n=fread(buf,1,sizeof buf,f);
144 FIPSerr(FIPS_F_FIPS_CHECK_EXE,FIPS_R_CANNOT_READ_EXE);
147 if (n) HMAC_Update(&hmac,buf,n);
150 HMAC_Final(&hmac,mdbuf,&n);
151 BIO_snprintf(p2,sizeof p2,"%s.sha1",path);
153 if(!f || fread(buf,1,20,f) != 20)
156 FIPSerr(FIPS_F_FIPS_CHECK_EXE,FIPS_R_CANNOT_READ_EXE_DIGEST);
160 if(memcmp(buf,mdbuf,20))
162 FIPSerr(FIPS_F_FIPS_CHECK_EXE,FIPS_R_EXE_DIGEST_DOES_NOT_MATCH);
168 int FIPS_mode_set(int onoff,const char *path)
170 void fips_set_mode(int _onoff);
171 int fips_set_owning_thread();
172 int fips_clear_owning_thread();
175 CRYPTO_w_lock(CRYPTO_LOCK_FIPS);
177 fips_set_owning_thread();
181 unsigned char buf[24];
183 fips_selftest_fail = 0;
185 /* Don't go into FIPS mode twice, just so we can do automagic
189 FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_FIPS_MODE_ALREADY_SET);
190 fips_selftest_fail = 1;
195 if(!FIPS_check_exe(path))
197 fips_selftest_fail = 1;
202 /* automagically seed PRNG if not already seeded */
203 if(!FIPS_rand_seeded())
205 if(RAND_bytes(buf,sizeof buf) <= 0)
207 fips_selftest_fail = 1;
211 FIPS_set_prng_key(buf,buf+8);
212 FIPS_rand_seed(buf+16,8);
215 /* now switch into FIPS mode */
216 fips_set_rand_check(FIPS_rand_method());
217 RAND_set_rand_method(FIPS_rand_method());
222 fips_selftest_fail = 1;
230 fips_selftest_fail = 0;
233 fips_clear_owning_thread();
234 CRYPTO_w_unlock(CRYPTO_LOCK_FIPS);
239 /* here just to cause error codes to exist */
242 FIPSerr(FIPS_F_HASH_FINAL,FIPS_F_NON_FIPS_METHOD);
243 FIPSerr(FIPS_F_HASH_FINAL,FIPS_R_FIPS_SELFTEST_FAILED);