Commit Graph

55 Commits

Author SHA1 Message Date
Pauli
3fc164e8d1 doc: Fix documentation of EVP_EncryptUpdate().
The documentation was off by one for the length this function could return.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12435)
2020-07-17 22:22:34 +10:00
Shane Lontis
7cc355c2e4 Add AES_CBC_CTS ciphers to providers
Added Algorithm names AES-128-CBC-CTS, AES-192-CBC-CTS and AES-256-CBC-CTS.
CS1, CS2 and CS3 variants are supported.
Only single shot updates are supported.
The cipher returns the mode EVP_CIPH_CBC_MODE (Internally it shares the aes_cbc cipher code). This
would allow existing code that uses AES_CBC to switch to the CTS variant without breaking code that
tests for this mode. Because it shares the aes_cbc code the cts128.c functions could not be used directly.
The cipher returns the flag EVP_CIPH_FLAG_CTS.
EVP_CIPH_FLAG_FIPS & EVP_CIPH_FLAG_NON_FIPS_ALLOW have been deprecated.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12094)
2020-07-15 23:11:50 +02:00
Gustaf Neumann
8c1cbc7210 Fix typos and repeated words
CLA: trivial

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/12320)
2020-07-05 01:49:20 +02:00
Patrick Steuer
d561b84143 EVP_EncryptInit.pod: fix example
Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11976)
2020-05-28 20:46:29 +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
Richard Levitte
e4a1d02300 Modify EVP_CIPHER_is_a() and EVP_MD_is_a() to handle legacy methods too
These functions would only handle provided methods, but there are
cases where the caller just passes along a received method without
knowing the underlying method tech, so might pass along a legacy
method.  We therefore need to have them handle this case as well so
they don't cause any unnecessary surprises.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10845)
2020-01-17 08:59:41 +01:00
Veres Lajos
79c44b4e30 Fix some typos
Reported-by: misspell-fixer <https://github.com/vlajos/misspell-fixer>

CLA: trivial

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10544)
2019-12-11 19:04:01 +01:00
Dmitry Belyavskiy
32745fccdb Difference between EVP_CipherInit and EVP_CipherInit_ex
Fixes #10455

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10550)
2019-12-08 22:27:57 +03:00
Rich Salz
d7cea0b8f5 Fix some broken doc links
Replace L<> link to header-file with a C<> reference.
Change some broken L<provider(3)> links to L<provider(7)>.
For consistency, rename four cipher pages to have a specific mode.
Fix up all references to any "generic" names to point to specific names.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10100)
2019-11-15 17:20:33 +01:00
Rich Salz
6e4618a0d7 Fix L<> entries without sections
Add sections (almost always "(3)" to L<> references that were missing
them. Among other things, this
Fixes: #10226

Also remove two references to non-existant manpages that have never
existed, and with the 3.0 structure, are unlikely to do so.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10240)
2019-10-31 14:26:34 +01:00
Richard Levitte
506cb0f632 EVP: add functions that return the name number
The returned number can be used for comparison purposes.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)
2019-10-17 09:16:45 +02:00
Richard Levitte
f651c727f8 EVP: add name traversal functions to all fetchable types
The following new functions all do the same thing; they traverse
the set of names assigned to implementations of each algorithm type:

EVP_MD_names_do_all(), EVP_CIPHER_names_do_all(),
EVP_MAC_names_do_all(), EVP_KEYMGMT_names_do_all(),
EVP_KEYEXCH_names_do_all(), EVP_KDF_names_do_all(),
EVP_SIGNATURE_names_do_all()

We add a warning to the documentation of EVP_CIPHER_name() and
EVP_MD_name(), as they aren't suitable to use with multiple-name
implementation.

We also remove EVP_MAC_name() and evp_KDF_name(), as they serve no
useful purpose.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)
2019-10-17 09:16:45 +02:00
Richard Levitte
251e610ce4 EVP: add missing common functionality
This adds the missing functions that should be common for all
fetchable EVP sub-APIs:

EVP_KEYMGMT_is_a(), EVP_KEYMGMT_do_all_provided(), EVP_KEYEXCH_is_a(),
EVP_KEYEXCH_do_all_provided(), EVP_KDF_is_a(), EVP_MD_is_a(),
EVP_SIGNATURE_do_all_provided(), EVP_SIGNATURE_is_a().

This also renames EVP_MD_do_all_ex(), EVP_CIPHER_do_all_ex(),
EVP_KDF_do_all_ex(), EVP_MAC_do_all_ex() to change '_ex'
to '_provided'.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)
2019-10-17 09:16:45 +02:00
Richard Levitte
f7397f0d58 Fix EVP_Cipher() for provided cipher implementations
EVP_Cipher() would return whatever ctx->cipher->ccipher() returned
with no regard for historical semantics.

We change this to first look if there is a ctx->cipher->ccipher(), and
in that case we treat the implementation as one with a custom cipher,
and "translate" it's return value like this: 0 => -1, 1 => outl, where
|outl| is the output length.

If there is no ctx->cipher->ccipher, we treat the implementation as
one without a custom cipher, call ctx->cipher->cupdate or
ctx->cipher->cfinal depending on input, and return whatever they
return (0 or 1).

Furthermore, we add a small hack in EVP_CIPHER_flags() to check if the
cipher is a provided one, and add EVP_CIPH_FLAG_CUSTOM_CIPHER to the
flags to be returned if there is a cipher->ccipher.  That way,
provided implementations never have to set that flag themselves, all
they need to do is to include a OSSL_FUNC_CIPHER_CIPHER function.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10137)
2019-10-11 15:55:36 +02:00
Richard Levitte
bb82531f65 POD: stop abusing comment
OpenSSL uses some POD directives masquerading as 'comment'
('=for comment' etc).  This is abusive and confusing.  Instead, we use
our own keyword.

    =for openssl whatever

    =begin openssl

    whatever

    =end openssl

(we have never used the multiline form, but might start one day)

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10048)
2019-10-11 15:30:57 +02:00
Pauli
41f7ecf30d Consistent naming for context gettable param queries .
All instances of EVP_*_CTX_gettable_params functions have been renamed
to EVP_*_gettable_ctx_params.  Except for the EVP_MD ones which were changed
already.

These functions do not take EVP_*_CTX arguments so their prior naming was
misleading.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10052)
2019-09-27 19:32:55 +10:00
Richard Levitte
7cfa1717b8 Modify providers that keep track of underlying algorithms
With some provider implementations, there are underlying ciphers,
digests and macs.  For some of them, the name was retrieved from the
method, but since the methods do not store those any more, we add
different mechanics.

For code that needs to pass on the name of a cipher or diges via
parameters, we simply locally store the name that was used when
fetching said cipher or digest.  This will ensure that any underlying
code that needs to fetch that same cipher or digest does so with the
exact same name instead of any random name from the set of names
associated with the algorithm.

For code that needs to check what kind of algorithm was passed, we
provide EVP_{type}_is_a(), that returns true if the given method has
the given name as one of its names.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9897)
2019-09-19 14:58:17 +02:00
Shane Lontis
dc64dc2edd Add EVP_CIPHER_CTX_tag_length()
There is no deprecated CTRL support for this new field.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9698)
2019-09-11 17:52:30 +10:00
Richard Levitte
550f974a09 New function EVP_CIPHER_free()
This function re-implements EVP_CIPHER_meth_free(), but has a name that
isn't encumbered by legacy EVP_CIPHER construction functionality.

We also refactor most of EVP_CIPHER_meth_new() into an internal
evp_cipher_new() that's used when creating fetched methods.

EVP_CIPHER_meth_new() and EVP_CIPHER_meth_free() are rewritten in terms of
evp_cipher_new() and EVP_CIPHER_free().  This means that at any time, we can
deprecate all the EVP_CIPHER_meth_ functions with no harmful consequence.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9758)
2019-09-04 10:38:13 +02:00
Rich Salz
485d336137 Do not have duplicate section heads
Change find-doc-nits to complain if a section header is repeated,
within a parent header (i.e., duplicate =head2 within a =head1).
In almost all cases, we just remove the duplicate header, as
it was a "continuation" of the =head1 that was already in affect.
In some cases, just remove "=head1 NOTES", possibly moving text
around, because the "NOTES" were really important parts of the
DESCRIPTION section.

No =headX sections should end with a period.
All =head1 labels should be in all uppercase.
No sub-head (=head2, etc) should be in all uppercase.
Update find-doc-nits to reject the above.

Fixup an internal POD link

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9631)
2019-08-27 07:08:11 +10:00
Richard Levitte
ae3ff60e7b Add missing EVP param utility functions
These functions were missing for a completes API:

EVP_MD_get_params(), EVP_CIPHER_get_params(), EVP_CIPHER_CTX_set_params(),
and EVP_CIPHER_CTX_get_params

Additionally, we also add all the corresponding parameter descriptor
returning functions, along the correspoding provider dispatches:

EVP_MD_gettable_params(), EVP_MD_CTX_settable_params(),
EVP_MD_CTX_gettable_params(), EVP_CIPHER_gettable_params(),
EVP_CIPHER_CTX_settable_params(), and EVP_CIPHER_CTX_gettable_params()

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9576)
2019-08-15 10:49:56 +02:00
Shane Lontis
a672a02a64 Add gcm ciphers (aes and aria) to providers.
The code has been modularized so that it can be shared by algorithms.

A fixed size IV is now used instead of being allocated.
The IV is not set into the low level struct now until the update (it uses an
iv_state for this purpose).

Hardware specific methods have been added to a PROV_GCM_HW object.

The S390 code has been changed to just contain methods that can be accessed in
a modular way. There are equivalent generic methods also for the other
platforms.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com>
(Merged from https://github.com/openssl/openssl/pull/9231)
2019-07-31 21:55:16 +10:00
Matt Caswell
11dbdc0714 Document the provider CIPHER operation
Extends the existing provider documentation with information about the
CIPHER operation. This is primarily for provider authors.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9473)
2019-07-30 10:17:12 +01:00
Richard Levitte
c540f00f38 Add EVP_CIPHER_do_all_ex() and EVP_MD_do_all_ex()
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9356)
2019-07-23 06:34:09 +02:00
Richard Levitte
1d2622d4f3 Add EVP_MD_provider() and EVP_CIPHER_provider()
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9356)
2019-07-23 06:34:09 +02:00
Richard Levitte
c750bc0851 Re-implement EVP_MD_name() and EVP_CIPHER_name() as functions
They will do the same as usual for non-provider algorithms
implementations, but can handle provider implementations as well.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9356)
2019-07-23 06:34:09 +02:00
Richard Levitte
2cafb1dff3 Documentation: Move the description of the fetching functions
Now that the general descriptions have moved from
doc/man3/EVP_MD_fetch.pod to doc/man7/provider.pod, the description of
the fetching functions themselves can be moved to other pages where
related functions are already described.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9409)
2019-07-22 16:42:19 +02:00
Tobias Nießen
67c81ec311 Allow specifying the tag after AAD in CCM mode
This change allows to pass the authentication tag after specifying
the AAD in CCM mode. This is already true for the other two supported
AEAD modes (GCM and OCB) and it seems appropriate to match the
behavior.

GCM and OCB also support to set the tag at any point before the call
to `EVP_*Final`, but this won't work for CCM due to a restriction
imposed by section 2.6 of RFC3610: The tag must be set before
actually decrypting data.

This commit also adds a test case for setting the tag after supplying
plaintext length and AAD.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7243)
2019-05-08 10:57:59 +01:00
Matt Caswell
27d5631236 Update ChaCha20-Poly1305 documentation
Correctly describe the maximum IV length.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8406)
2019-03-06 13:25:21 +00:00
Dr. Matthias St. Pierre
fc5ecaddd0 man: harmonize the various formulations in the HISTORY sections
While stereotyped repetitions are frowned upon in literature, they
serve a useful purpose in manual pages, because it is easier for
the user to find certain information if it is always presented in
the same way. For that reason, this commit harmonizes the varying
formulations in the HISTORY section about which functions, flags,
etc. were added in which OpenSSL version.

It also attempts to make the pod files more grep friendly by
avoiding to insert line breaks between the symbol names and the
corresponding version number in which they were introduced
(wherever possible). Some punctuation and typographical errors
were fixed on the way.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7854)
2018-12-15 22:27:26 +01:00
Todd Short
b1ceb439f2 Add RFC5297 AES-SIV support
Based originally on github.com/dfoxfranke/libaes_siv

This creates an SIV128 mode that uses EVP interfaces for the CBC, CTR
and CMAC code to reduce complexity at the cost of perfomance. The
expected use is for short inputs, not TLS-sized records.

Add multiple AAD input capacity in the EVP tests.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3540)
2018-12-12 08:16:10 +10:00
Richard Levitte
4746f25ac6 Following the license change, modify the boilerplates in doc/man3/
[skip ci]

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7829)
2018-12-06 15:34:13 +01:00
David von Oheimb
49c9c1b3d0 add 'unsupported cipher mode' diagnostics to evp_lib.c and genpkey.c
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6217)
2018-06-18 10:45:35 +01:00
Alexandre Perrin
1238caa725 Documentation typo fix in EVP_EncryptInit.pod
Remove duplicate declaration of `EVP_CIPHER_key_length` in the synopsis.

CLA: trivial

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5792)
2018-04-02 07:16:12 -04:00
Kurt Roeckx
16cfc2c90d Don't use a ssl specific DRBG anymore
Since the public and private DRBG are per thread we don't need one
per ssl object anymore. It could also try to get entropy from a DRBG
that's really from an other thread because the SSL object moved to an
other thread.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/5547)
2018-03-19 15:04:40 +01:00
Kurt Roeckx
b38fa9855f Fix propotype to include the const qualifier
Reviewed-by: Andy Polyakov <appro@openssl.org>
GH: #5582
2018-03-11 14:22:31 +01:00
Kurt Roeckx
d91f45688c Tell the ciphers which DRBG to use for generating random bytes.
Reviewed-by: Richard Levitte <levitte@openssl.org>
GH: #4672
2018-02-28 21:20:01 +01:00
Matt Caswell
0d66475908 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
2018-02-27 13:59:42 +00:00
Pauli
b45497c337 Avoid mentioning uninitialised contexts.
All contexts must be initialised because they can only be created using the _new() calls.
Remove the outdated mentions of uninitialised and initialised contexts.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/5388)
2018-02-19 08:41:55 +10:00
Patrick Steuer
5c5eb286af doc/man3/EVP_EncryptInit.pod: add EVP_CIPHER_CTX_rand_key
Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4843)
2017-12-09 21:38:41 +01:00
FdaSilvaYY
7bbb00500a Fix docs for EVP_EncryptUpdate and EVP_DecryptUpdate
Fixes #4775
[skip ci]

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4776)
2017-11-28 10:32:46 +00:00
Ronald Tse
8fa4d95e8e Synchronize man3 EVP cipher list with existing implementations, adding:
* ARIA, SEED, Camellia
* AES-XTS, OCB, CTR
* Key wrap for 3DES, AES
* RC4-MD5 AD
* CFB modes with 1-bit and 8-bit shifts

Split EVP_EncryptInit cipher list to individual man pages.

Consolidate cipher bit-lengths in EVP_EncryptInit cipher list.

Clarify

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4564)
2017-10-31 16:28:42 +01:00
Patrick Steuer
338ead0ff9 EVP_EncryptInit.pod: EVP_CIPHER_mode and EVP_CIPHER_CTX_mode update
Mention CTR, GCM, CCM, OCB, WRAP and XTS modes.

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4498)
2017-10-10 07:57:59 +10:00
Dr. Stephen Henson
5e95c1efe6 Correct GCM docs.
Fix GCM documentation: the tag does not have to be supplied before
decrypting any data any more.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4231)
2017-08-23 23:54:51 +01:00
Greg Zaverucha
519a5d1ef2 Fix sample code
Fix memory leak in sample encryption code and check return value of
fopen.

CLA: trivial

Signed-off-by: Greg Zaverucha <gregz@microsoft.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3790)
2017-06-29 00:38:26 +02:00
Beat Bolli
e9b7724687 doc/man3: reformat the function prototypes in the synopses
I tried hard to keep the lines at 80 characters or less, but in a few
cases I had to punt and just indented the subsequent lines by 4 spaces.

A few well-placed typedefs for callback functions would really help, but
these would be part of the API, so that's probably for later.

I also took the liberty of inserting empty lines in overlong blocks to
provide some visual space.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1956)
2017-06-08 11:54:16 +01:00
Beat Bolli
2947af32a0 doc/man3: use the documented coding style in the example code
Adjust brace placement, whitespace after keywords, indentation and empty
lines after variable declarations according to
https://www.openssl.org/policies/codingstyle.html.

Indent literal sections by exactly one space.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1956)
2017-06-08 11:54:15 +01:00
Kurt Roeckx
6061f80b5c Add missing commas in pod files
Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #3557
2017-05-25 19:31:01 +02:00
Paul Yang
719b289d62 Fix typo in doc/man3/EVP_EncrypInit.pod
In the example section.

CLA: trivial

Signed-off-by: Paul Yang <paulyang.inf@gmail.com>

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3520)
2017-05-23 09:30:34 +01:00
Steven Collison
209fac9f8a doc: Add stitched ciphers to EVP_EncryptInit.pod
These ciphers don't appear to be documented anywhere. Given the
performance[1] benefits I think it makes sense to expose them.

[1] https://software.intel.com/sites/default/files/open-ssl-performance-paper.pdf

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3067)
2017-03-29 09:31:39 +01:00