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-rw-r--r--openssl/crypto/rand/md_rand.c31
-rw-r--r--openssl/crypto/rand/rand.h9
-rw-r--r--openssl/crypto/rand/rand_err.c6
-rw-r--r--openssl/crypto/rand/rand_lib.c119
4 files changed, 148 insertions, 17 deletions
diff --git a/openssl/crypto/rand/md_rand.c b/openssl/crypto/rand/md_rand.c
index b2f04ff13..fcdd3f2a8 100644
--- a/openssl/crypto/rand/md_rand.c
+++ b/openssl/crypto/rand/md_rand.c
@@ -109,6 +109,8 @@
*
*/
+#define OPENSSL_FIPSEVP
+
#ifdef MD_RAND_DEBUG
# ifndef NDEBUG
# define NDEBUG
@@ -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;
@@ -517,7 +520,9 @@ static int ssleay_rand_bytes(unsigned char *buf, int num)
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 +531,16 @@ 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/openssl/crypto/rand/rand.h b/openssl/crypto/rand/rand.h
index ac6c02176..dc8fcf94c 100644
--- a/openssl/crypto/rand/rand.h
+++ b/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 +134,13 @@ 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_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/openssl/crypto/rand/rand_err.c b/openssl/crypto/rand/rand_err.c
index 03cda4dd9..b8586c8f4 100644
--- a/openssl/crypto/rand/rand_err.c
+++ b/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 +71,16 @@
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_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/openssl/crypto/rand/rand_lib.c b/openssl/crypto/rand/rand_lib.c
index 513e33898..daf1dab97 100644
--- a/openssl/crypto/rand/rand_lib.c
+++ b/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 +180,116 @@ 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)
+ {
+ 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;
+ 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