Commit Graph

165 Commits

Author SHA1 Message Date
Mike Kasick cc343d047c rand_lib: RAND_poll: Reseed in non-"no-deprecated" builds.
In a non-"no-deprecated" libcrypto build with a default configuration,
RAND_get_rand_method() == RAND_OpenSSL() and so needs to fall through to
the RAND_seed call (used in "no-deprecated" builds) to perform a reseed.

CLA: trivial

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21167)
2023-06-14 09:03:14 +10:00
Matt Caswell 7f2c22c1b9 Avoid taking a write lock in RAND_get_rand_method()
The function RAND_get_rand_method() is called every time RAND_bytes() or
RAND_priv_bytes() is called. We were obtaining a write lock in order to
find the default random method - even though we rarely write. We change
this to a read lock and only fallback to a write lock if we need to.

Partial fix for #20286

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20929)
2023-05-30 17:19:11 +01:00
Pauli 56547da9d3 rand: trust user supplied entropy when configured without a random source
Fixes #20841

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/20843)
2023-05-03 07:51:21 +10:00
Tomas Mraz a88e97fcac Release the drbg in the global default context before engines
Fixes #17995
Fixes #18578

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/19386)
2022-11-02 11:01:20 +01:00
Pauli 7c8187d43d rand: add set0 calls for the private and public DRBGs
The FIPS 140-3 DSA and ECDSA tests need to be known answer tests which means
the entropy needs to be cooked.  This permits this.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/19510)
2022-11-02 08:42:46 +11:00
Richard Levitte e077455e9e Stop raising ERR_R_MALLOC_FAILURE in most places
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and
at least handle the file name and line number they are called from,
there's no need to report ERR_R_MALLOC_FAILURE where they are called
directly, or when SSLfatal() and RLAYERfatal() is used, the reason
`ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`.

There were a number of places where `ERR_R_MALLOC_FAILURE` was reported
even though it was a function from a different sub-system that was
called.  Those places are changed to report ERR_R_{lib}_LIB, where
{lib} is the name of that sub-system.
Some of them are tricky to get right, as we have a lot of functions
that belong in the ASN1 sub-system, and all the `sk_` calls or from
the CRYPTO sub-system.

Some extra adaptation was necessary where there were custom OPENSSL_malloc()
wrappers, and some bugs are fixed alongside these changes.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)
2022-10-05 14:02:03 +02:00
Matt Caswell fecb3aae22 Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes
2022-05-03 13:34:51 +01:00
Dmitry Belyavskiy fba140c735 str[n]casecmp => OPENSSL_strncasecmp
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18069)
2022-04-22 11:34:41 +02:00
Hugo Landau 927d0566de Refactor OSSL_LIB_CTX to avoid using CRYPTO_EX_DATA
This refactors OSSL_LIB_CTX to avoid using CRYPTO_EX_DATA. The assorted
objects to be managed by OSSL_LIB_CTX are hardcoded and are initialized
eagerly rather than lazily, which avoids the need for locking on access
in most cases.

Fixes #17116.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17881)
2022-04-01 10:49:19 +11:00
Jiasheng Jiang 09dca55733 rand: Add missing check for rand_get_global
As the potential failure of the rand_get_global(),
for example fail to get lock, 'dgbl' could be NULL
pointer and be dereferenced later.
Therefore, it should be better to check it and return
error if fails, like RAND_get0_primary() and other callers.

Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/17690)
2022-02-20 13:09:27 +01:00
Richard Levitte d5f9166bac Move e_os.h to include/internal
Including e_os.h with a path from a header file doesn't work well on
certain exotic platform.  It simply fails to build.

Since we don't seem to be able to stop ourselves, the better move is
to move e_os.h to an include directory that's part of the inclusion
path given to the compiler.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17641)
2022-02-05 05:31:09 +01:00
Pauli 505d44c623 rand: avoid using the derivation function for the public and private DRBGs
There is no point using it becuase they are getting full quality entropy from
the primary DRBG (which remains using the d.f.).

Also cleaned up the parameter passing to the DRBGs to not pass parameters that
are unknown.

Fixes #16117

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16156)
2021-09-03 10:23:21 +10:00
Matt Caswell 005505fbf8 Ensure we remove libctx DRBG state before removing the provider store
Otherwise a heap use-after-free can result.

Fixes #15766

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15810)
2021-06-21 14:54:35 +01:00
Tomas Mraz dce7272d08 Elimination of some sources not needed in the FIPS_MODULE
Unfortunately in terms of fips.sources this does not mean much
given the way how the .h files are added via the dependency
information from the compiler.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15622)
2021-06-07 08:37:09 +02:00
Rich Salz 6b750b89ee Add NCONF_get0_libctx()
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15466)
2021-06-02 12:40:02 +10:00
Tomas Mraz ed576acdf5 Rename all getters to use get/get0 in name
For functions that exist in 1.1.1 provide a simple aliases via #define.

Fixes #15236

Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_,
EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_,
EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_,
EVP_MD_, and EVP_CIPHER_ prefixes are renamed.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)
2021-06-01 12:40:00 +02:00
Pauli 528685fe77 rand: use size_t for size argument to RAND_bytes_ex()
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15540)
2021-06-01 18:13:36 +10:00
Pauli 508258caa0 rand: add a strength argument to the BN and RAND RNG calls
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15513)
2021-05-29 17:17:12 +10:00
Matt Caswell a16d21744d Add the ability for ex_data to have a priority
Where an object has multiple ex_data associated with it, then we free that
ex_data in order of priority (high priority first).

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:56:55 +01:00
Pauli 8f4cddbc90 rand: fix coverity 1473636: data race condition
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14651)
2021-03-26 08:41:32 +10:00
Shane Lontis 1335ca4b07 Add ossl_rand symbols
Partial fix for #12964

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-18 17:52:37 +10:00
Rich Salz cd3f8c1b11 Always check CRYPTO_LOCK_{read,write}_lock
Some functions that lock things are void, so we just return early.

Also make ossl_namemap_empty return 0 on error.  Updated the docs, and added
some code to ossl_namemap_stored() to handle the failure, and updated the
tests to allow for failure.

Fixes: #14230

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14238)
2021-03-14 15:33:34 +10:00
Tomas Mraz 12b4e5821d Use OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL) in libcrypto
Calling OPENSSL_init_crypto(0, NULL) is a no-op and will
not properly initialize thread local handling.

Only the calls that are needed to initialize thread locals
are kept, the rest of the no-op calls are removed.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14497)
2021-03-12 15:11:21 +01:00
Pauli d5a936c5b1 rand: use params argument on instantiate call
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14310)
2021-02-28 17:25:49 +10:00
Pauli 786b13fa77 RAND_METHOD deprecation: code changes
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13652)
2021-02-23 23:24:41 +10:00
Matt Caswell cd4e6a3512 Refactor RAND_get0_primary() locking
Make sure we never read or write to dgbl->primary outside of a lock.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13987)
2021-02-02 12:21:21 +00:00
Richard Levitte 4333b89f50 Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13999)
2021-01-28 13:54:57 +01:00
Matt Caswell f5a50c2a07 Enable locking on the primary DRBG when we create it
The primary DRBG may be shared across multiple threads and therefore
we must use locking to access it. Previously we were enabling that locking
lazily when we attempted to obtain one of the child DRBGs. Part of the
process of enabling the lock, is to create the lock. But if we create the
lock lazily then it is too late - we may race with other threads where each
thread is independently attempting to enable the locking. This results
in multiple locks being created - only one of which "sticks" and the rest
are leaked.

Instead we enable locking on the primary when we first create it. This is
already locked and therefore we cannot race.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13660)
2021-01-14 17:30:46 +00:00
Pauli 1d180bbe8e rand: allow seed-src to be missing
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13640)
2020-12-09 22:28:52 +10:00
Pauli 81aef6ba72 rand: add a provider side seed source.
This allows the operating system sources that OpenSSL supports to be
used directly as RNGs.  It also allows DRBG seeding to be explicitly
specified rather than being left to a fall back case.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13455)
2020-12-09 12:20:32 +10:00
Pauli 03bede0cc8 rand: move the entropy source out of the FIPS provider
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/13226)
2020-11-20 08:24:21 +10:00
Pauli 1dc188ba0e Provide side RNG functions renamed to have an ossl_ prefix.
These are: prov_crngt_cleanup_entropy(), prov_crngt_get_entropy(),
prov_pool_acquire_entropy(), prov_pool_add_nonce_data(),
prov_rand_drbg_free() and prov_rand_drbg_new().

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13417)
2020-11-19 07:39:12 +10:00
Richard Levitte a150f8e1fc CRYPTO: refactor ERR_raise()+ERR_add_error_data() to ERR_raise_data()
This is not done absolutely everywhere, as there are places where
the use of ERR_add_error_data() is quite complex, but at least the
simple cases are done.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13318)
2020-11-13 09:35:31 +01:00
Richard Levitte 9311d0c471 Convert all {NAME}err() in crypto/ to their corresponding ERR_raise() call
This includes error reporting for libcrypto sub-libraries in surprising
places.

This was done using util/err-to-raise

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13318)
2020-11-13 09:35:02 +01:00
Dr. Matthias St. Pierre b425001010 Rename OPENSSL_CTX prefix to OSSL_LIB_CTX
Many of the new types introduced by OpenSSL 3.0 have an OSSL_ prefix,
e.g., OSSL_CALLBACK, OSSL_PARAM, OSSL_ALGORITHM, OSSL_SERIALIZER.

The OPENSSL_CTX type stands out a little by using a different prefix.
For consistency reasons, this type is renamed to OSSL_LIB_CTX.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12621)
2020-10-15 11:59:53 +01:00
Pauli 44d2482ba6 Add a "random" configuration section.
This permits the default trio of DRBGs to have their type and parameters set
using configuration.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12931)
2020-09-23 15:28:29 +10:00
Pauli 4516bf7422 rand: instantiate the DRBGs upon first use.
Fixes #12714

[skip ci]

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/12717)
2020-08-28 10:19:56 +10:00
Pauli 7d615e2178 rand_drbg: remove RAND_DRBG.
The RAND_DRBG API did not fit well into the new provider concept as
implemented by EVP_RAND and EVP_RAND_CTX. The main reason is that the
RAND_DRBG API is a mixture of 'front end' and 'back end' API calls
and some of its API calls are rather low-level. This holds in particular
for the callback mechanism (RAND_DRBG_set_callbacks()) and the RAND_DRBG
type changing mechanism (RAND_DRBG_set()).

Adding a compatibility layer to continue supporting the RAND_DRBG API as
a legacy API for a regular deprecation period turned out to come at the
price of complicating the new provider API unnecessarily. Since the
RAND_DRBG API exists only since version 1.1.1, it was decided by the OMC
to drop it entirely.

Other related changes:

Use RNG instead of DRBG in EVP_RAND documentation.  The documentation was
using DRBG in places where it should have been RNG or CSRNG.

Move the RAND_DRBG(7) documentation to EVP_RAND(7).

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/12509)
2020-08-07 14:16:47 +10:00
Pauli e4468e6d8d deprecate engines in libcrypto
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12226)
2020-07-16 09:12:27 +02:00
Pauli f000e82898 CTR, HASH and HMAC DRBGs in provider
Move the three different DRBGs to the provider.

As part of the move, the DRBG specific data was pulled out of a common
structure and into their own structures.  Only these smaller structures are
securely allocated.  This saves quite a bit of secure memory:

    +-------------------------------+
    | DRBG         | Bytes | Secure |
    +--------------+-------+--------+
    | HASH         |  376  |   512  |
    | HMAC         |  168  |   256  |
    | CTR          |  176  |   256  |
    | Common (new) |  320  |     0  |
    | Common (old) |  592  |  1024  |
    +--------------+-------+--------+

Bytes is the structure size on the X86/64.
Secure is the number of bytes of secure memory used (power of two allocator).

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/11682)
2020-06-24 20:05:42 +10:00
Pauli 4bffc025fd CRNGT: continuous DRBG tests for providers
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/11682)
2020-06-24 20:05:41 +10:00
Richard Levitte f844f9eb44 Rename FIPS_MODE to FIPS_MODULE
This macro is used to determine if certain pieces of code should
become part of the FIPS module or not.  The old name was confusing.

Fixes #11538

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11539)
2020-04-28 15:37:37 +02:00
Matt Caswell 33388b44b6 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11616)
2020-04-23 13:55:52 +01:00
Dr. Matthias St. Pierre 7fa8bcfe43 Fix misspelling errors and typos reported by codespell
Fixes #10998

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11000)
2020-02-06 17:01:00 +01:00
Matt Caswell 993ebac9ed Convert rand_bytes_ex and rand_priv_bytes_ex to public functions
These were initially added as internal functions only. However they will
also need to be used by libssl as well. Therefore it make sense to move
them into the public API.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10864)
2020-01-20 14:54:31 +00:00
Dr. Matthias St. Pierre 0402c90ff9 rand_lib.c: fix null pointer dereferences after RAND_get_rand_method() failure
RAND_get_rand_method() can return a NULL method pointer in the case of a
malloc failure, so don't dereference it without a check.

Reported-by: Zu-Ming Jiang (detected by FIFUZZ)

Fixes #10480

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10483)
2019-12-12 07:41:00 +10:00
Richard Levitte 00db8c60aa Update source files for pre-3.0 deprecation
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10364)
2019-11-07 11:37:25 +01:00
Dr. Matthias St. Pierre 706457b7bd Reorganize local header files
Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like

  '*_lcl.h', '*_local.h', or '*_int.h'

This commit changes the different suffixes to '*_local.h' uniformly.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)
2019-09-28 20:26:35 +02:00
Dr. Matthias St. Pierre 25f2138b0a Reorganize private crypto header files
Currently, there are two different directories which contain internal
header files of libcrypto which are meant to be shared internally:

While header files in 'include/internal' are intended to be shared
between libcrypto and libssl, the files in 'crypto/include/internal'
are intended to be shared inside libcrypto only.

To make things complicated, the include search path is set up in such
a way that the directive #include "internal/file.h" could refer to
a file in either of these two directoroes. This makes it necessary
in some cases to add a '_int.h' suffix to some files to resolve this
ambiguity:

  #include "internal/file.h"      # located in 'include/internal'
  #include "internal/file_int.h"  # located in 'crypto/include/internal'

This commit moves the private crypto headers from

  'crypto/include/internal'  to  'include/crypto'

As a result, the include directives become unambiguous

  #include "internal/file.h"       # located in 'include/internal'
  #include "crypto/file.h"         # located in 'include/crypto'

hence the superfluous '_int.h' suffixes can be stripped.

The files 'store_int.h' and 'store.h' need to be treated specially;
they are joined into a single file.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)
2019-09-28 20:26:34 +02:00
Dr. Matthias St. Pierre 0768b38b80 drbg: fix issue where DRBG_CTR fails if NO_DF is used (2nd attempt)
Since commit 7c226dfc43 a chained DRBG does not add additional
data anymore when reseeding from its parent. The reason is that
the size of the additional data exceeded the allowed size when
no derivation function was used.

This commit provides an alternative fix: instead of adding the
entire DRBG's complete state, we just add the DRBG's address
in memory, thereby providing some distinction between the different
DRBG instances.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9832)
2019-09-11 11:22:18 +02:00