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-rw-r--r--openssl/fips/fips.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/openssl/fips/fips.c b/openssl/fips/fips.c
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+++ b/openssl/fips/fips.c
@@ -0,0 +1,519 @@
+/* ====================================================================
+ * Copyright (c) 2003 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.
+ *
+ */
+
+
+#include <openssl/rand.h>
+#include <openssl/fips_rand.h>
+#include <openssl/err.h>
+#include <openssl/bio.h>
+#include <openssl/hmac.h>
+#include <openssl/rsa.h>
+#include <string.h>
+#include <limits.h>
+#include "fips_locl.h"
+
+#ifdef OPENSSL_FIPS
+
+#include <openssl/fips.h>
+
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
+static int fips_selftest_fail;
+static int fips_mode;
+static const void *fips_rand_check;
+
+static void fips_set_mode(int onoff)
+ {
+ int owning_thread = fips_is_owning_thread();
+
+ if (fips_is_started())
+ {
+ if (!owning_thread) fips_w_lock();
+ fips_mode = onoff;
+ if (!owning_thread) fips_w_unlock();
+ }
+ }
+
+static void fips_set_rand_check(const void *rand_check)
+ {
+ int owning_thread = fips_is_owning_thread();
+
+ if (fips_is_started())
+ {
+ if (!owning_thread) fips_w_lock();
+ fips_rand_check = rand_check;
+ if (!owning_thread) fips_w_unlock();
+ }
+ }
+
+int FIPS_mode(void)
+ {
+ int ret = 0;
+ int owning_thread = fips_is_owning_thread();
+
+ if (fips_is_started())
+ {
+ if (!owning_thread) fips_r_lock();
+ ret = fips_mode;
+ if (!owning_thread) fips_r_unlock();
+ }
+ return ret;
+ }
+
+const void *FIPS_rand_check(void)
+ {
+ const void *ret = 0;
+ int owning_thread = fips_is_owning_thread();
+
+ if (fips_is_started())
+ {
+ if (!owning_thread) fips_r_lock();
+ ret = fips_rand_check;
+ if (!owning_thread) fips_r_unlock();
+ }
+ return ret;
+ }
+
+int FIPS_selftest_failed(void)
+ {
+ int ret = 0;
+ if (fips_is_started())
+ {
+ int owning_thread = fips_is_owning_thread();
+
+ if (!owning_thread) fips_r_lock();
+ ret = fips_selftest_fail;
+ if (!owning_thread) fips_r_unlock();
+ }
+ return ret;
+ }
+
+/* Selftest failure fatal exit routine. This will be called
+ * during *any* cryptographic operation. It has the minimum
+ * overhead possible to avoid too big a performance hit.
+ */
+
+void FIPS_selftest_check(void)
+ {
+ if (fips_selftest_fail)
+ {
+ OpenSSLDie(__FILE__,__LINE__, "FATAL FIPS SELFTEST FAILURE");
+ }
+ }
+
+void fips_set_selftest_fail(void)
+ {
+ fips_selftest_fail = 1;
+ }
+
+int FIPS_selftest()
+ {
+
+ return FIPS_selftest_sha1()
+ && FIPS_selftest_hmac()
+ && FIPS_selftest_aes()
+ && FIPS_selftest_des()
+ && FIPS_selftest_rsa()
+ && FIPS_selftest_dsa();
+ }
+
+extern const void *FIPS_text_start(), *FIPS_text_end();
+extern const unsigned char FIPS_rodata_start[], FIPS_rodata_end[];
+unsigned char FIPS_signature [20] = { 0 };
+static const char FIPS_hmac_key[]="etaonrishdlcupfm";
+
+unsigned int FIPS_incore_fingerprint(unsigned char *sig,unsigned int len)
+ {
+ const unsigned char *p1 = FIPS_text_start();
+ const unsigned char *p2 = FIPS_text_end();
+ const unsigned char *p3 = FIPS_rodata_start;
+ const unsigned char *p4 = FIPS_rodata_end;
+ HMAC_CTX c;
+
+ HMAC_CTX_init(&c);
+ HMAC_Init(&c,FIPS_hmac_key,strlen(FIPS_hmac_key),EVP_sha1());
+
+ /* detect overlapping regions */
+ if (p1<=p3 && p2>=p3)
+ p3=p1, p4=p2>p4?p2:p4, p1=NULL, p2=NULL;
+ else if (p3<=p1 && p4>=p1)
+ p3=p3, p4=p2>p4?p2:p4, p1=NULL, p2=NULL;
+
+ if (p1)
+ HMAC_Update(&c,p1,(size_t)p2-(size_t)p1);
+
+ if (FIPS_signature>=p3 && FIPS_signature<p4)
+ {
+ /* "punch" hole */
+ HMAC_Update(&c,p3,(size_t)FIPS_signature-(size_t)p3);
+ p3 = FIPS_signature+sizeof(FIPS_signature);
+ if (p3<p4)
+ HMAC_Update(&c,p3,(size_t)p4-(size_t)p3);
+ }
+ else
+ HMAC_Update(&c,p3,(size_t)p4-(size_t)p3);
+
+ HMAC_Final(&c,sig,&len);
+ HMAC_CTX_cleanup(&c);
+
+ return len;
+ }
+
+int FIPS_check_incore_fingerprint(void)
+ {
+ unsigned char sig[EVP_MAX_MD_SIZE];
+ unsigned int len;
+#if defined(__sgi) && (defined(__mips) || defined(mips))
+ extern int __dso_displacement[];
+#else
+ extern int OPENSSL_NONPIC_relocated;
+#endif
+
+ if (FIPS_text_start()==NULL)
+ {
+ FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_UNSUPPORTED_PLATFORM);
+ return 0;
+ }
+
+ len=FIPS_incore_fingerprint (sig,sizeof(sig));
+
+ if (len!=sizeof(FIPS_signature) ||
+ memcmp(FIPS_signature,sig,sizeof(FIPS_signature)))
+ {
+ if (FIPS_signature>=FIPS_rodata_start && FIPS_signature<FIPS_rodata_end)
+ FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH_SEGMENT_ALIASING);
+#if defined(__sgi) && (defined(__mips) || defined(mips))
+ else if (__dso_displacement!=NULL)
+#else
+ else if (OPENSSL_NONPIC_relocated)
+#endif
+ FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH_NONPIC_RELOCATED);
+ else
+ FIPSerr(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT,FIPS_R_FINGERPRINT_DOES_NOT_MATCH);
+ return 0;
+ }
+
+ return 1;
+ }
+
+int FIPS_mode_set(int onoff)
+ {
+ int fips_set_owning_thread();
+ int fips_clear_owning_thread();
+ int ret = 0;
+
+ fips_w_lock();
+ fips_set_started();
+ fips_set_owning_thread();
+
+ if(onoff)
+ {
+ unsigned char buf[48];
+
+ fips_selftest_fail = 0;
+
+ /* Don't go into FIPS mode twice, just so we can do automagic
+ seeding */
+ if(FIPS_mode())
+ {
+ FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_FIPS_MODE_ALREADY_SET);
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+
+#ifdef OPENSSL_IA32_SSE2
+ if ((OPENSSL_ia32cap & (1<<25|1<<26)) != (1<<25|1<<26))
+ {
+ FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_UNSUPPORTED_PLATFORM);
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+#endif
+
+ if(fips_signature_witness() != FIPS_signature)
+ {
+ FIPSerr(FIPS_F_FIPS_MODE_SET,FIPS_R_CONTRADICTING_EVIDENCE);
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+
+ if(!FIPS_check_incore_fingerprint())
+ {
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+
+ /* Perform RNG KAT before seeding */
+ if (!FIPS_selftest_rng())
+ {
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+
+ /* automagically seed PRNG if not already seeded */
+ if(!FIPS_rand_status())
+ {
+ if(RAND_bytes(buf,sizeof buf) <= 0)
+ {
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+ FIPS_rand_set_key(buf,32);
+ FIPS_rand_seed(buf+32,16);
+ }
+
+ /* now switch into FIPS mode */
+ fips_set_rand_check(FIPS_rand_method());
+ RAND_set_rand_method(FIPS_rand_method());
+ if(FIPS_selftest())
+ fips_set_mode(1);
+ else
+ {
+ fips_selftest_fail = 1;
+ ret = 0;
+ goto end;
+ }
+ ret = 1;
+ goto end;
+ }
+ fips_set_mode(0);
+ fips_selftest_fail = 0;
+ ret = 1;
+end:
+ fips_clear_owning_thread();
+ fips_w_unlock();
+ return ret;
+ }
+
+void fips_w_lock(void) { CRYPTO_w_lock(CRYPTO_LOCK_FIPS); }
+void fips_w_unlock(void) { CRYPTO_w_unlock(CRYPTO_LOCK_FIPS); }
+void fips_r_lock(void) { CRYPTO_r_lock(CRYPTO_LOCK_FIPS); }
+void fips_r_unlock(void) { CRYPTO_r_unlock(CRYPTO_LOCK_FIPS); }
+
+static int fips_started = 0;
+static unsigned long fips_thread = 0;
+
+void fips_set_started(void)
+ {
+ fips_started = 1;
+ }
+
+int fips_is_started(void)
+ {
+ return fips_started;
+ }
+
+int fips_is_owning_thread(void)
+ {
+ int ret = 0;
+
+ if (fips_is_started())
+ {
+ CRYPTO_r_lock(CRYPTO_LOCK_FIPS2);
+ if (fips_thread != 0 && fips_thread == CRYPTO_thread_id())
+ ret = 1;
+ CRYPTO_r_unlock(CRYPTO_LOCK_FIPS2);
+ }
+ return ret;
+ }
+
+int fips_set_owning_thread(void)
+ {
+ int ret = 0;
+
+ if (fips_is_started())
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_FIPS2);
+ if (fips_thread == 0)
+ {
+ fips_thread = CRYPTO_thread_id();
+ ret = 1;
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_FIPS2);
+ }
+ return ret;
+ }
+
+int fips_clear_owning_thread(void)
+ {
+ int ret = 0;
+
+ if (fips_is_started())
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_FIPS2);
+ if (fips_thread == CRYPTO_thread_id())
+ {
+ fips_thread = 0;
+ ret = 1;
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_FIPS2);
+ }
+ return ret;
+ }
+
+unsigned char *fips_signature_witness(void)
+ {
+ extern unsigned char FIPS_signature[];
+ return FIPS_signature;
+ }
+
+/* Generalized public key test routine. Signs and verifies the data
+ * supplied in tbs using mesage digest md and setting option digest
+ * flags md_flags. If the 'kat' parameter is not NULL it will
+ * additionally check the signature matches it: a known answer test
+ * The string "fail_str" is used for identification purposes in case
+ * of failure.
+ */
+
+int fips_pkey_signature_test(EVP_PKEY *pkey,
+ const unsigned char *tbs, int tbslen,
+ const unsigned char *kat, unsigned int katlen,
+ const EVP_MD *digest, unsigned int md_flags,
+ const char *fail_str)
+ {
+ int ret = 0;
+ unsigned char sigtmp[256], *sig = sigtmp;
+ unsigned int siglen;
+ EVP_MD_CTX mctx;
+ EVP_MD_CTX_init(&mctx);
+
+ if ((pkey->type == EVP_PKEY_RSA)
+ && (RSA_size(pkey->pkey.rsa) > sizeof(sigtmp)))
+ {
+ sig = OPENSSL_malloc(RSA_size(pkey->pkey.rsa));
+ if (!sig)
+ {
+ FIPSerr(FIPS_F_FIPS_PKEY_SIGNATURE_TEST,ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ }
+
+ if (tbslen == -1)
+ tbslen = strlen((char *)tbs);
+
+ if (md_flags)
+ M_EVP_MD_CTX_set_flags(&mctx, md_flags);
+
+ if (!EVP_SignInit_ex(&mctx, digest, NULL))
+ goto error;
+ if (!EVP_SignUpdate(&mctx, tbs, tbslen))
+ goto error;
+ if (!EVP_SignFinal(&mctx, sig, &siglen, pkey))
+ goto error;
+
+ if (kat && ((siglen != katlen) || memcmp(kat, sig, katlen)))
+ goto error;
+
+ if (!EVP_VerifyInit_ex(&mctx, digest, NULL))
+ goto error;
+ if (!EVP_VerifyUpdate(&mctx, tbs, tbslen))
+ goto error;
+ ret = EVP_VerifyFinal(&mctx, sig, siglen, pkey);
+
+ error:
+ if (sig != sigtmp)
+ OPENSSL_free(sig);
+ EVP_MD_CTX_cleanup(&mctx);
+ if (ret != 1)
+ {
+ FIPSerr(FIPS_F_FIPS_PKEY_SIGNATURE_TEST,FIPS_R_TEST_FAILURE);
+ if (fail_str)
+ ERR_add_error_data(2, "Type=", fail_str);
+ return 0;
+ }
+ return 1;
+ }
+
+/* Generalized symmetric cipher test routine. Encrypt data, verify result
+ * against known answer, decrypt and compare with original plaintext.
+ */
+
+int fips_cipher_test(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
+ const unsigned char *key,
+ const unsigned char *iv,
+ const unsigned char *plaintext,
+ const unsigned char *ciphertext,
+ int len)
+ {
+ unsigned char pltmp[FIPS_MAX_CIPHER_TEST_SIZE];
+ unsigned char citmp[FIPS_MAX_CIPHER_TEST_SIZE];
+ OPENSSL_assert(len <= FIPS_MAX_CIPHER_TEST_SIZE);
+ if (EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, 1) <= 0)
+ return 0;
+ EVP_Cipher(ctx, citmp, plaintext, len);
+ if (memcmp(citmp, ciphertext, len))
+ return 0;
+ if (EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, 0) <= 0)
+ return 0;
+ EVP_Cipher(ctx, pltmp, citmp, len);
+ if (memcmp(pltmp, plaintext, len))
+ return 0;
+ return 1;
+ }
+
+#if 0
+/* The purpose of this is to ensure the error code exists and the function
+ * name is to keep the error checking script quiet
+ */
+void hash_final(void)
+ {
+ FIPSerr(FIPS_F_HASH_FINAL,FIPS_R_NON_FIPS_METHOD);
+ }
+#endif
+
+
+#endif