diff options
Diffstat (limited to 'main/openssl/crypto/rand')
| -rw-r--r-- | main/openssl/crypto/rand/md_rand.c | 55 | ||||
| -rw-r--r-- | main/openssl/crypto/rand/rand.h | 10 | ||||
| -rw-r--r-- | main/openssl/crypto/rand/rand_err.c | 7 | ||||
| -rw-r--r-- | main/openssl/crypto/rand/rand_lib.c | 130 | ||||
| -rw-r--r-- | main/openssl/crypto/rand/rand_unix.c | 108 | ||||
| -rw-r--r-- | main/openssl/crypto/rand/randfile.c | 4 |
6 files changed, 256 insertions, 58 deletions
diff --git a/main/openssl/crypto/rand/md_rand.c b/main/openssl/crypto/rand/md_rand.c index b2f04ff1..dd291637 100644 --- a/main/openssl/crypto/rand/md_rand.c +++ b/main/openssl/crypto/rand/md_rand.c @@ -109,6 +109,8 @@ * */ +#define OPENSSL_FIPSEVP + #ifdef MD_RAND_DEBUG # ifndef NDEBUG # define NDEBUG @@ -121,10 +123,10 @@ #include "e_os.h" +#include <openssl/crypto.h> #include <openssl/rand.h> #include "rand_lcl.h" -#include <openssl/crypto.h> #include <openssl/err.h> #ifdef BN_DEBUG @@ -157,13 +159,14 @@ const char RAND_version[]="RAND" OPENSSL_VERSION_PTEXT; static void ssleay_rand_cleanup(void); static void ssleay_rand_seed(const void *buf, int num); static void ssleay_rand_add(const void *buf, int num, double add_entropy); -static int ssleay_rand_bytes(unsigned char *buf, int num); +static int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo); +static int ssleay_rand_nopseudo_bytes(unsigned char *buf, int num); static int ssleay_rand_pseudo_bytes(unsigned char *buf, int num); static int ssleay_rand_status(void); RAND_METHOD rand_ssleay_meth={ ssleay_rand_seed, - ssleay_rand_bytes, + ssleay_rand_nopseudo_bytes, ssleay_rand_cleanup, ssleay_rand_add, ssleay_rand_pseudo_bytes, @@ -328,7 +331,7 @@ static void ssleay_rand_seed(const void *buf, int num) ssleay_rand_add(buf, num, (double)num); } -static int ssleay_rand_bytes(unsigned char *buf, int num) +static int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo) { static volatile int stirred_pool = 0; int i,j,k,st_num,st_idx; @@ -377,8 +380,11 @@ static int ssleay_rand_bytes(unsigned char *buf, int num) * are fed into the hash function and the results are kept in the * global 'md'. */ - - CRYPTO_w_lock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + /* NB: in FIPS mode we are already under a lock */ + if (!FIPS_mode()) +#endif + CRYPTO_w_lock(CRYPTO_LOCK_RAND); /* prevent ssleay_rand_bytes() from trying to obtain the lock again */ CRYPTO_w_lock(CRYPTO_LOCK_RAND2); @@ -457,7 +463,10 @@ static int ssleay_rand_bytes(unsigned char *buf, int num) /* before unlocking, we must clear 'crypto_lock_rand' */ crypto_lock_rand = 0; - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_RAND); while (num > 0) { @@ -509,15 +518,23 @@ static int ssleay_rand_bytes(unsigned char *buf, int num) MD_Init(&m); MD_Update(&m,(unsigned char *)&(md_c[0]),sizeof(md_c)); MD_Update(&m,local_md,MD_DIGEST_LENGTH); - CRYPTO_w_lock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_lock(CRYPTO_LOCK_RAND); MD_Update(&m,md,MD_DIGEST_LENGTH); MD_Final(&m,md); - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); +#ifdef OPENSSL_FIPS + if (!FIPS_mode()) +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_RAND); EVP_MD_CTX_cleanup(&m); if (ok) return(1); - else + else if (pseudo) + return 0; + else { RANDerr(RAND_F_SSLEAY_RAND_BYTES,RAND_R_PRNG_NOT_SEEDED); ERR_add_error_data(1, "You need to read the OpenSSL FAQ, " @@ -526,22 +543,16 @@ static int ssleay_rand_bytes(unsigned char *buf, int num) } } +static int ssleay_rand_nopseudo_bytes(unsigned char *buf, int num) + { + return ssleay_rand_bytes(buf, num, 0); + } + /* pseudo-random bytes that are guaranteed to be unique but not unpredictable */ static int ssleay_rand_pseudo_bytes(unsigned char *buf, int num) { - int ret; - unsigned long err; - - ret = RAND_bytes(buf, num); - if (ret == 0) - { - err = ERR_peek_error(); - if (ERR_GET_LIB(err) == ERR_LIB_RAND && - ERR_GET_REASON(err) == RAND_R_PRNG_NOT_SEEDED) - ERR_clear_error(); - } - return (ret); + return ssleay_rand_bytes(buf, num, 1); } static int ssleay_rand_status(void) diff --git a/main/openssl/crypto/rand/rand.h b/main/openssl/crypto/rand/rand.h index ac6c0217..bb5520e8 100644 --- a/main/openssl/crypto/rand/rand.h +++ b/main/openssl/crypto/rand/rand.h @@ -119,6 +119,11 @@ int RAND_event(UINT, WPARAM, LPARAM); #endif +#ifdef OPENSSL_FIPS +void RAND_set_fips_drbg_type(int type, int flags); +int RAND_init_fips(void); +#endif + /* BEGIN ERROR CODES */ /* The following lines are auto generated by the script mkerr.pl. Any changes * made after this point may be overwritten when the script is next run. @@ -129,9 +134,14 @@ void ERR_load_RAND_strings(void); /* Function codes. */ #define RAND_F_RAND_GET_RAND_METHOD 101 +#define RAND_F_RAND_INIT_FIPS 102 #define RAND_F_SSLEAY_RAND_BYTES 100 /* Reason codes. */ +#define RAND_R_DUAL_EC_DRBG_DISABLED 104 +#define RAND_R_ERROR_INITIALISING_DRBG 102 +#define RAND_R_ERROR_INSTANTIATING_DRBG 103 +#define RAND_R_NO_FIPS_RANDOM_METHOD_SET 101 #define RAND_R_PRNG_NOT_SEEDED 100 #ifdef __cplusplus diff --git a/main/openssl/crypto/rand/rand_err.c b/main/openssl/crypto/rand/rand_err.c index 03cda4dd..c4c80fc8 100644 --- a/main/openssl/crypto/rand/rand_err.c +++ b/main/openssl/crypto/rand/rand_err.c @@ -1,6 +1,6 @@ /* crypto/rand/rand_err.c */ /* ==================================================================== - * Copyright (c) 1999-2006 The OpenSSL Project. All rights reserved. + * Copyright (c) 1999-2011 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 @@ -71,12 +71,17 @@ static ERR_STRING_DATA RAND_str_functs[]= { {ERR_FUNC(RAND_F_RAND_GET_RAND_METHOD), "RAND_get_rand_method"}, +{ERR_FUNC(RAND_F_RAND_INIT_FIPS), "RAND_init_fips"}, {ERR_FUNC(RAND_F_SSLEAY_RAND_BYTES), "SSLEAY_RAND_BYTES"}, {0,NULL} }; static ERR_STRING_DATA RAND_str_reasons[]= { +{ERR_REASON(RAND_R_DUAL_EC_DRBG_DISABLED),"dual ec drbg disabled"}, +{ERR_REASON(RAND_R_ERROR_INITIALISING_DRBG),"error initialising drbg"}, +{ERR_REASON(RAND_R_ERROR_INSTANTIATING_DRBG),"error instantiating drbg"}, +{ERR_REASON(RAND_R_NO_FIPS_RANDOM_METHOD_SET),"no fips random method set"}, {ERR_REASON(RAND_R_PRNG_NOT_SEEDED) ,"PRNG not seeded"}, {0,NULL} }; diff --git a/main/openssl/crypto/rand/rand_lib.c b/main/openssl/crypto/rand/rand_lib.c index 513e3389..5ac0e14c 100644 --- a/main/openssl/crypto/rand/rand_lib.c +++ b/main/openssl/crypto/rand/rand_lib.c @@ -60,10 +60,16 @@ #include <time.h> #include "cryptlib.h" #include <openssl/rand.h> + #ifndef OPENSSL_NO_ENGINE #include <openssl/engine.h> #endif +#ifdef OPENSSL_FIPS +#include <openssl/fips.h> +#include <openssl/fips_rand.h> +#endif + #ifndef OPENSSL_NO_ENGINE /* non-NULL if default_RAND_meth is ENGINE-provided */ static ENGINE *funct_ref =NULL; @@ -174,3 +180,127 @@ int RAND_status(void) return meth->status(); return 0; } + +#ifdef OPENSSL_FIPS + +/* FIPS DRBG initialisation code. This sets up the DRBG for use by the + * rest of OpenSSL. + */ + +/* Entropy gatherer: use standard OpenSSL PRNG to seed (this will gather + * entropy internally through RAND_poll(). + */ + +static size_t drbg_get_entropy(DRBG_CTX *ctx, unsigned char **pout, + int entropy, size_t min_len, size_t max_len) + { + /* Round up request to multiple of block size */ + min_len = ((min_len + 19) / 20) * 20; + *pout = OPENSSL_malloc(min_len); + if (!*pout) + return 0; + if (RAND_SSLeay()->bytes(*pout, min_len) <= 0) + { + OPENSSL_free(*pout); + *pout = NULL; + return 0; + } + return min_len; + } + +static void drbg_free_entropy(DRBG_CTX *ctx, unsigned char *out, size_t olen) + { + if (out) + { + OPENSSL_cleanse(out, olen); + OPENSSL_free(out); + } + } + +/* Set "additional input" when generating random data. This uses the + * current PID, a time value and a counter. + */ + +static size_t drbg_get_adin(DRBG_CTX *ctx, unsigned char **pout) + { + /* Use of static variables is OK as this happens under a lock */ + static unsigned char buf[16]; + static unsigned long counter; + FIPS_get_timevec(buf, &counter); + *pout = buf; + return sizeof(buf); + } + +/* RAND_add() and RAND_seed() pass through to OpenSSL PRNG so it is + * correctly seeded by RAND_poll(). + */ + +static int drbg_rand_add(DRBG_CTX *ctx, const void *in, int inlen, + double entropy) + { + RAND_SSLeay()->add(in, inlen, entropy); + return 1; + } + +static int drbg_rand_seed(DRBG_CTX *ctx, const void *in, int inlen) + { + RAND_SSLeay()->seed(in, inlen); + return 1; + } + +#ifndef OPENSSL_DRBG_DEFAULT_TYPE +#define OPENSSL_DRBG_DEFAULT_TYPE NID_aes_256_ctr +#endif +#ifndef OPENSSL_DRBG_DEFAULT_FLAGS +#define OPENSSL_DRBG_DEFAULT_FLAGS DRBG_FLAG_CTR_USE_DF +#endif + +static int fips_drbg_type = OPENSSL_DRBG_DEFAULT_TYPE; +static int fips_drbg_flags = OPENSSL_DRBG_DEFAULT_FLAGS; + +void RAND_set_fips_drbg_type(int type, int flags) + { + fips_drbg_type = type; + fips_drbg_flags = flags; + } + +int RAND_init_fips(void) + { + DRBG_CTX *dctx; + size_t plen; + unsigned char pers[32], *p; +#ifndef OPENSSL_ALLOW_DUAL_EC_DRBG + if (fips_drbg_type >> 16) + { + RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_DUAL_EC_DRBG_DISABLED); + return 0; + } +#endif + + dctx = FIPS_get_default_drbg(); + if (FIPS_drbg_init(dctx, fips_drbg_type, fips_drbg_flags) <= 0) + { + RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INITIALISING_DRBG); + return 0; + } + + FIPS_drbg_set_callbacks(dctx, + drbg_get_entropy, drbg_free_entropy, 20, + drbg_get_entropy, drbg_free_entropy); + FIPS_drbg_set_rand_callbacks(dctx, drbg_get_adin, 0, + drbg_rand_seed, drbg_rand_add); + /* Personalisation string: a string followed by date time vector */ + strcpy((char *)pers, "OpenSSL DRBG2.0"); + plen = drbg_get_adin(dctx, &p); + memcpy(pers + 16, p, plen); + + if (FIPS_drbg_instantiate(dctx, pers, sizeof(pers)) <= 0) + { + RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INSTANTIATING_DRBG); + return 0; + } + FIPS_rand_set_method(FIPS_drbg_method()); + return 1; + } + +#endif diff --git a/main/openssl/crypto/rand/rand_unix.c b/main/openssl/crypto/rand/rand_unix.c index e9ead3a5..e3a65571 100644 --- a/main/openssl/crypto/rand/rand_unix.c +++ b/main/openssl/crypto/rand/rand_unix.c @@ -133,47 +133,87 @@ # define FD_SETSIZE (8*sizeof(fd_set)) #endif -#ifdef __VOS__ +#if defined(OPENSSL_SYS_VOS) + +/* The following algorithm repeatedly samples the real-time clock + (RTC) to generate a sequence of unpredictable data. The algorithm + relies upon the uneven execution speed of the code (due to factors + such as cache misses, interrupts, bus activity, and scheduling) and + upon the rather large relative difference between the speed of the + clock and the rate at which it can be read. + + If this code is ported to an environment where execution speed is + more constant or where the RTC ticks at a much slower rate, or the + clock can be read with fewer instructions, it is likely that the + results would be far more predictable. + + As a precaution, we generate 4 times the minimum required amount of + seed data. */ + int RAND_poll(void) { - unsigned char buf[ENTROPY_NEEDED]; + short int code; + gid_t curr_gid; pid_t curr_pid; uid_t curr_uid; - static int first=1; - int i; - long rnd = 0; + int i, k; struct timespec ts; - unsigned seed; - -/* The VOS random() function starts from a static seed so its - initial value is predictable. If random() returns the - initial value, reseed it with dynamic data. The VOS - real-time clock has a granularity of 1 nsec so it should be - reasonably difficult to predict its exact value. Do not - gratuitously reseed the PRNG because other code in this - process or thread may be using it. */ - - if (first) { - first = 0; - rnd = random (); - if (rnd == 1804289383) { - clock_gettime (CLOCK_REALTIME, &ts); - curr_pid = getpid(); - curr_uid = getuid(); - seed = ts.tv_sec ^ ts.tv_nsec ^ curr_pid ^ curr_uid; - srandom (seed); - } - } + unsigned char v; - for (i = 0; i < sizeof(buf); i++) { - if (i % 4 == 0) - rnd = random(); - buf[i] = rnd; - rnd >>= 8; - } - RAND_add(buf, sizeof(buf), ENTROPY_NEEDED); - memset(buf, 0, sizeof(buf)); +#ifdef OPENSSL_SYS_VOS_HPPA + long duration; + extern void s$sleep (long *_duration, short int *_code); +#else +#ifdef OPENSSL_SYS_VOS_IA32 + long long duration; + extern void s$sleep2 (long long *_duration, short int *_code); +#else +#error "Unsupported Platform." +#endif /* OPENSSL_SYS_VOS_IA32 */ +#endif /* OPENSSL_SYS_VOS_HPPA */ + + /* Seed with the gid, pid, and uid, to ensure *some* + variation between different processes. */ + + curr_gid = getgid(); + RAND_add (&curr_gid, sizeof curr_gid, 1); + curr_gid = 0; + + curr_pid = getpid(); + RAND_add (&curr_pid, sizeof curr_pid, 1); + curr_pid = 0; + + curr_uid = getuid(); + RAND_add (&curr_uid, sizeof curr_uid, 1); + curr_uid = 0; + for (i=0; i<(ENTROPY_NEEDED*4); i++) + { + /* burn some cpu; hope for interrupts, cache + collisions, bus interference, etc. */ + for (k=0; k<99; k++) + ts.tv_nsec = random (); + +#ifdef OPENSSL_SYS_VOS_HPPA + /* sleep for 1/1024 of a second (976 us). */ + duration = 1; + s$sleep (&duration, &code); +#else +#ifdef OPENSSL_SYS_VOS_IA32 + /* sleep for 1/65536 of a second (15 us). */ + duration = 1; + s$sleep2 (&duration, &code); +#endif /* OPENSSL_SYS_VOS_IA32 */ +#endif /* OPENSSL_SYS_VOS_HPPA */ + + /* get wall clock time. */ + clock_gettime (CLOCK_REALTIME, &ts); + + /* take 8 bits */ + v = (unsigned char) (ts.tv_nsec % 256); + RAND_add (&v, sizeof v, 1); + v = 0; + } return 1; } #elif defined __OpenBSD__ diff --git a/main/openssl/crypto/rand/randfile.c b/main/openssl/crypto/rand/randfile.c index bc7d9c58..7f142807 100644 --- a/main/openssl/crypto/rand/randfile.c +++ b/main/openssl/crypto/rand/randfile.c @@ -57,7 +57,9 @@ */ /* We need to define this to get macros like S_IFBLK and S_IFCHR */ +#if !defined(OPENSSL_SYS_VXWORKS) #define _XOPEN_SOURCE 500 +#endif #include <errno.h> #include <stdio.h> @@ -137,7 +139,7 @@ int RAND_load_file(const char *file, long bytes) in=fopen(file,"rb"); #endif if (in == NULL) goto err; -#if defined(S_IFBLK) && defined(S_IFCHR) && !defined(OPNESSL_NO_POSIX_IO) +#if defined(S_IFBLK) && defined(S_IFCHR) && !defined(OPENSSL_NO_POSIX_IO) if (sb.st_mode & (S_IFBLK | S_IFCHR)) { /* this file is a device. we don't want read an infinite number * of bytes from a random device, nor do we want to use buffered |