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openssl-3/openssl-3-jitterentropy-3.4.0.patch

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Index: openssl-3.1.4/Configurations/00-base-templates.conf
===================================================================
--- openssl-3.1.4.orig/Configurations/00-base-templates.conf
+++ openssl-3.1.4/Configurations/00-base-templates.conf
@@ -71,9 +71,12 @@ my %targets=(
lflags =>
sub { $withargs{zlib_lib} ? "-L".$withargs{zlib_lib} : () },
ex_libs =>
- sub { !defined($disabled{zlib})
- && defined($disabled{"zlib-dynamic"})
- ? "-lz" : () },
+ sub {
+ my @libs = ();
+ push(@libs, "-lz") if !defined($disabled{zlib}) && defined($disabled{"zlib-dynamic"});
+ push(@libs, "-ljitterentropy") if !defined($disabled{jitterentropy});
+ return join(" ", @libs);
+ },
HASHBANGPERL => "/usr/bin/env perl", # Only Unix actually cares
RANLIB => sub { which("$config{cross_compile_prefix}ranlib")
? "ranlib" : "" },
Index: openssl-3.1.4/crypto/rand/rand_jitter_entropy.c
===================================================================
--- /dev/null
+++ openssl-3.1.4/crypto/rand/rand_jitter_entropy.c
@@ -0,0 +1,97 @@
+# include "jitterentropy.h"
+# include "prov/jitter_entropy.h"
+
+struct rand_data* ec = NULL;
+CRYPTO_RWLOCK *jent_lock = NULL;
+int stop = 0;
+
+struct rand_data* FIPS_entropy_init(void)
+{
+ if (ec != NULL) {
+ /* Entropy source has been initiated and collector allocated */
+ return ec;
+ }
+ if (stop != 0) {
+ /* FIPS_entropy_cleanup() already called, don't initialize it again */
+ return NULL;
+ }
+ if (jent_lock == NULL) {
+ /* Allocates a new lock to serialize access to jent library */
+ jent_lock = CRYPTO_THREAD_lock_new();
+ if (jent_lock == NULL) {
+ return NULL;
+ }
+ }
+ if (CRYPTO_THREAD_write_lock(jent_lock) == 0) {
+ return NULL;
+ }
+ /* If the initialization is successful, the call returns with 0 */
+ if (jent_entropy_init_ex(1, JENT_FORCE_FIPS) == 0) {
+ /* Allocate entropy collector */
+ ec = jent_entropy_collector_alloc(1, JENT_FORCE_FIPS);
+ } else {
+ /* abort if jitter rng fails initialization */
+ abort();
+ }
+ if (ec == NULL) {
+ /* abort if jitter rng fails initialization */
+ abort();
+ }
+ CRYPTO_THREAD_unlock(jent_lock);
+
+ return ec;
+}
+
+/*
+ * The following error codes can be returned by jent_read_entropy_safe():
+ * -1 entropy_collector is NULL
+ * -2 RCT failed
+ * -3 APT failed
+ * -4 The timer cannot be initialized
+ * -5 LAG failure
+ * -6 RCT permanent failure
+ * -7 APT permanent failure
+ * -8 LAG permanent failure
+ */
+ssize_t FIPS_jitter_entropy(unsigned char *buf, size_t buflen)
+{
+ ssize_t ent_bytes = -1;
+
+ /*
+ * Order is important. We need to call FIPS_entropy_init() before we
+ * acquire jent_lock, otherwise it can lead to deadlock. Once we have
+ * jent_lock, we need to ensure that FIPS_entropy_cleanup() was not called
+ * in the meantime. Then it's safe to read entropy.
+ */
+ if (buf != NULL
+ && buflen != 0
+ && FIPS_entropy_init()
+ && CRYPTO_THREAD_write_lock(jent_lock) != 0
+ && stop == 0) {
+ /* Get entropy */
+ ent_bytes = jent_read_entropy_safe(&ec, (char *)buf, buflen);
+ if (ent_bytes < 0) {
+ /* abort if jitter rng fails entropy gathering because health tests failed. */
+ abort();
+ }
+ CRYPTO_THREAD_unlock(jent_lock);
+ }
+
+ return ent_bytes;
+}
+
+void FIPS_entropy_cleanup(void)
+{
+ if (jent_lock != NULL && stop == 0) {
+ CRYPTO_THREAD_write_lock(jent_lock);
+ }
+ /* Disable re-initialization in FIPS_entropy_init() */
+ stop = 1;
+ /* Free entropy collector */
+ if (ec != NULL) {
+ jent_entropy_collector_free(ec);
+ ec = NULL;
+ }
+ CRYPTO_THREAD_lock_free(jent_lock);
+ jent_lock = NULL;
+}
Index: openssl-3.1.4/providers/implementations/rands/seeding/rand_unix.c
===================================================================
--- openssl-3.1.4.orig/providers/implementations/rands/seeding/rand_unix.c
+++ openssl-3.1.4/providers/implementations/rands/seeding/rand_unix.c
@@ -20,6 +20,7 @@
#include "internal/dso.h"
#include "internal/nelem.h"
#include "prov/seeding.h"
+#include "prov/jitter_entropy.h"
#ifdef __linux
# include <sys/syscall.h>
@@ -631,6 +632,31 @@ size_t ossl_pool_acquire_entropy(RAND_PO
(void)entropy_available; /* avoid compiler warning */
+ /* Use jitter entropy in FIPS mode */
+ if (EVP_default_properties_is_fips_enabled(NULL))
+ {
+ size_t bytes_needed;
+ unsigned char *buffer;
+ ssize_t bytes;
+ /* Maximum allowed number of consecutive unsuccessful attempts */
+ int attempts = 3;
+
+ bytes_needed = ossl_rand_pool_bytes_needed(pool, 1 /*entropy_factor*/);
+ while (bytes_needed != 0 && attempts-- > 0) {
+ buffer = ossl_rand_pool_add_begin(pool, bytes_needed);
+ bytes = FIPS_jitter_entropy(buffer, bytes_needed);
+ if (bytes > 0) {
+ ossl_rand_pool_add_end(pool, bytes, 8 * bytes);
+ bytes_needed -= bytes;
+ attempts = 3; /* reset counter after successful attempt */
+ } else if (bytes < 0) {
+ break;
+ }
+ }
+ entropy_available = ossl_rand_pool_entropy_available(pool);
+ return entropy_available;
+ }
+
# if defined(OPENSSL_RAND_SEED_GETRANDOM)
{
size_t bytes_needed;
Index: openssl-3.1.4/providers/implementations/include/prov/jitter_entropy.h
===================================================================
--- /dev/null
+++ openssl-3.1.4/providers/implementations/include/prov/jitter_entropy.h
@@ -0,0 +1,17 @@
+#ifndef OSSL_PROVIDERS_JITTER_ENTROPY_H
+# define OSSL_PROVIDERS_JITTER_ENTROPY_H
+
+# include <openssl/core.h>
+# include <openssl/types.h>
+# include <openssl/crypto.h>
+# include <openssl/fips.h>
+
+extern struct rand_data* ec;
+extern CRYPTO_RWLOCK *jent_lock;
+extern int stop;
+
+struct rand_data* FIPS_entropy_init(void);
+ssize_t FIPS_jitter_entropy(unsigned char *buf, size_t buflen);
+void FIPS_entropy_cleanup(void);
+
+#endif
Index: openssl-3.1.4/providers/fips/self_test.c
===================================================================
--- openssl-3.1.4.orig/providers/fips/self_test.c
+++ openssl-3.1.4/providers/fips/self_test.c
@@ -20,6 +20,7 @@
#include "internal/tsan_assist.h"
#include "prov/providercommon.h"
#include "crypto/rand.h"
+#include "prov/jitter_entropy.h"
/*
* We're cheating here. Normally we don't allow RUN_ONCE usage inside the FIPS
@@ -392,6 +393,11 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS
return 0;
}
+ if (!FIPS_entropy_init()) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FIPS_ENTROPY_INIT_FAILED);
+ goto end;
+ }
+
if (st == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CONFIG_DATA);
goto end;
Index: openssl-3.1.4/include/openssl/proverr.h
===================================================================
--- openssl-3.1.4.orig/include/openssl/proverr.h
+++ openssl-3.1.4/include/openssl/proverr.h
@@ -44,6 +44,7 @@
# define PROV_R_FAILED_TO_GET_PARAMETER 103
# define PROV_R_FAILED_TO_SET_PARAMETER 104
# define PROV_R_FAILED_TO_SIGN 175
+# define PROV_R_FIPS_ENTROPY_INIT_FAILED 234
# define PROV_R_FIPS_MODULE_CONDITIONAL_ERROR 227
# define PROV_R_FIPS_MODULE_ENTERING_ERROR_STATE 224
# define PROV_R_FIPS_MODULE_IN_ERROR_STATE 225
Index: openssl-3.1.4/providers/common/provider_err.c
===================================================================
--- openssl-3.1.4.orig/providers/common/provider_err.c
+++ openssl-3.1.4/providers/common/provider_err.c
@@ -54,6 +54,8 @@ static const ERR_STRING_DATA PROV_str_re
{ERR_PACK(ERR_LIB_PROV, 0, PROV_R_FAILED_TO_SET_PARAMETER),
"failed to set parameter"},
{ERR_PACK(ERR_LIB_PROV, 0, PROV_R_FAILED_TO_SIGN), "failed to sign"},
+ {ERR_PACK(ERR_LIB_PROV, 0, PROV_R_FIPS_ENTROPY_INIT_FAILED),
+ "fips module jitter entropy init failed"},
{ERR_PACK(ERR_LIB_PROV, 0, PROV_R_FIPS_MODULE_CONDITIONAL_ERROR),
"fips module conditional error"},
{ERR_PACK(ERR_LIB_PROV, 0, PROV_R_FIPS_MODULE_ENTERING_ERROR_STATE),
Index: openssl-3.1.4/crypto/rand/build.info
===================================================================
--- openssl-3.1.4.orig/crypto/rand/build.info
+++ openssl-3.1.4/crypto/rand/build.info
@@ -1,6 +1,6 @@
LIBS=../../libcrypto
-$COMMON=rand_lib.c
+$COMMON=rand_lib.c rand_jitter_entropy.c
$CRYPTO=randfile.c rand_err.c rand_deprecated.c prov_seed.c rand_pool.c
IF[{- !$disabled{'egd'} -}]
Index: openssl-3.1.4/providers/fips/fipsprov.c
===================================================================
--- openssl-3.1.4.orig/providers/fips/fipsprov.c
+++ openssl-3.1.4/providers/fips/fipsprov.c
@@ -27,6 +27,7 @@
#include "crypto/context.h"
#include "internal/core.h"
#include "indicator.h"
+#include "prov/jitter_entropy.h"
static const char FIPS_DEFAULT_PROPERTIES[] = "provider=fips,fips=yes";
static const char FIPS_UNAPPROVED_PROPERTIES[] = "provider=fips,fips=no";
@@ -603,6 +604,7 @@ const OSSL_SUSE_FIPSINDICATOR_ALGORITHM
static void fips_teardown(void *provctx)
{
+ FIPS_entropy_cleanup();
OSSL_LIB_CTX_free(PROV_LIBCTX_OF(provctx));
ossl_prov_ctx_free(provctx);
}
Index: openssl-3.1.4/util/libcrypto.num
===================================================================
--- openssl-3.1.4.orig/util/libcrypto.num
+++ openssl-3.1.4/util/libcrypto.num
@@ -5441,3 +5441,5 @@ X509_get_default_cert_path_env
ossl_safe_getenv ? 3_0_0 EXIST::FUNCTION:
ossl_ctx_legacy_digest_signatures_allowed ? 3_0_1 EXIST::FUNCTION:
ossl_ctx_legacy_digest_signatures_allowed_set ? 3_0_1 EXIST::FUNCTION:
+FIPS_entropy_init ? 3_1_4 EXIST::FUNCTION:
+FIPS_entropy_cleanup ? 3_1_4 EXIST::FUNCTION:
Index: openssl-3.1.4/Configure
===================================================================
--- openssl-3.1.4.orig/Configure
+++ openssl-3.1.4/Configure
@@ -454,6 +454,7 @@ my @disablables = (
"fuzz-libfuzzer",
"gost",
"idea",
+ "jitterentropy",
"ktls",
"legacy",
"loadereng",
@@ -550,6 +551,7 @@ our %disabled = ( # "what" => "c
"external-tests" => "default",
"fuzz-afl" => "default",
"fuzz-libfuzzer" => "default",
+ "jitterentropy" => "default",
"ktls" => "default",
"md2" => "default",
"msan" => "default",
@@ -763,7 +765,7 @@ my %cmdvars = (); # Stores
my %unsupported_options = ();
my %deprecated_options = ();
# If you change this, update apps/version.c
-my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
+my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom jitterentropy);
my @seed_sources = ();
while (@argvcopy)
{
@@ -1231,6 +1233,9 @@ if (scalar(@seed_sources) == 0) {
if (scalar(grep { $_ eq 'egd' } @seed_sources) > 0) {
delete $disabled{'egd'};
}
+if (scalar(grep { $_ eq 'jitterentropy' } @seed_sources) > 0) {
+ delete $disabled{'jitterentropy'};
+}
if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
warn <<_____ if scalar(@seed_sources) == 1;
Index: openssl-3.1.4/crypto/info.c
===================================================================
--- openssl-3.1.4.orig/crypto/info.c
+++ openssl-3.1.4/crypto/info.c
@@ -15,6 +15,9 @@
#include "internal/e_os.h"
#include "buildinf.h"
+# include <stdio.h>
+# include <jitterentropy.h>
+
#if defined(__arm__) || defined(__arm) || defined(__aarch64__)
# include "arm_arch.h"
# define CPU_INFO_STR_LEN 128
@@ -128,6 +131,14 @@ DEFINE_RUN_ONCE_STATIC(init_info_strings
OPENSSL_strlcat(seeds, ")", sizeof(seeds)); \
} while (0)
+ /* In FIPS mode, only jitterentropy is used for seeding and
+ * reseeding the primary DRBG.
+ */
+ if (EVP_default_properties_is_fips_enabled(NULL)) {
+ char jent_version_string[32];
+ sprintf(jent_version_string, "jitterentropy (%d)", jent_version());
+ add_seeds_string(jent_version_string);
+ } else {
#ifdef OPENSSL_RAND_SEED_NONE
add_seeds_string("none");
#endif
@@ -156,6 +167,7 @@ DEFINE_RUN_ONCE_STATIC(init_info_strings
#ifdef OPENSSL_RAND_SEED_OS
add_seeds_string("os-specific");
#endif
+ }
seed_sources = seeds;
}
return 1;
Index: openssl-3.1.4/INSTALL.md
===================================================================
--- openssl-3.1.4.orig/INSTALL.md
+++ openssl-3.1.4/INSTALL.md
@@ -463,6 +463,12 @@ if provided by the CPU.
Use librandom (not implemented yet).
This source is ignored by the FIPS provider.
+### jitterentropy
+
+Use [jitterentropy-library](https://github.com/smuellerDD/jitterentropy-library)
+dynamically linked. In FIPS mode, only the jitter RNG is used to seed and reseed
+the primary DRBG.
+
### none
Disable automatic seeding. This is the default on some operating systems where
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