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This reverts commits:
8d79ed67407e433d80ebc8d3aa080e8ce16e6eb7
19fdcb523402ed13ab798cf811fb0119e3e7b104
8d79ed67407e433d80ebc8d3aa080e8ce16e6eb7
Because WebRTC (at least) includes our headers in an extern "C" block,
which precludes having any C++ in them.
Change-Id: Ia849f43795a40034cbd45b22ea680b51aab28b2d
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MSVC doesn't define __cplusplus as 201103 to indicate C++11 support, so
just assume that the compiler supports C++11 if _MSC_VER is defined.
Change-Id: I27f6eeefe6e8dc522470f36fab76ab36d85eebac
Reviewed-on: https://boringssl-review.googlesource.com/8734
Reviewed-by: David Benjamin <davidben@google.com>
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This change scatters the contents of the two scoped_types.h files into
the headers for each of the areas of the code. The types are now in the
|bssl| namespace.
Change-Id: I802b8de68fba4786b6a0ac1bacd11d81d5842423
Reviewed-on: https://boringssl-review.googlesource.com/8731
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: I189db990df2a3cbf68f820a8f9f16142ccd7070f
Reviewed-on: https://boringssl-review.googlesource.com/7595
Reviewed-by: David Benjamin <davidben@google.com>
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Require the public exponent to be available unless
|RSA_FLAG_NO_BLINDING| is set on the key. Also, document this.
If the public exponent |e| is not available, then we could compute it
from |p|, |q|, and |d|. However, there's no reasonable situation in
which we'd have |p| or |q| but not |e|; either we have all the CRT
parameters, or we have (e, d, n), or we have only (d, n). The
calculation to compute |e| exposes the private key to risk of side
channel attacks.
Also, it was particularly wasteful to compute |e| for each
|BN_BLINDING| created, instead of just once before the first
|BN_BLINDING| was created.
|BN_BLINDING| now no longer needs to contain a duplicate copy of |e|,
so it is now more space-efficient.
Note that the condition |b->e != NULL| in |bn_blinding_update| was
always true since commit cbf56a5683ddda831ff91c46ea48d1fba545db66.
Change-Id: Ic2fd6980e0d359dcd53772a7c31bdd0267e316b4
Reviewed-on: https://boringssl-review.googlesource.com/7594
Reviewed-by: David Benjamin <davidben@google.com>
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We do not need to support engine-provided verification methods.
Change-Id: Iaad8369d403082b728c831167cc386fdcabfb067
Reviewed-on: https://boringssl-review.googlesource.com/7311
Reviewed-by: David Benjamin <davidben@google.com>
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This is needed by trousers. As with the PSS function, the version that
assumes SHA-1 is put into decrepit.
Change-Id: I153e8ea0150e48061b978384b600a7b990d21d03
Reviewed-on: https://boringssl-review.googlesource.com/7670
Reviewed-by: David Benjamin <davidben@google.com>
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The documentation in |RSA_METHOD| says that the |ctx| parameter to
|mod_exp| can be NULL, however the default implementation doesn't
handle that case. That wouldn't matter since internally it is always
called with a non-NULL |ctx| and it is static, but an external
application could get a pointer to |mod_exp| by extracting it from
the default |RSA_METHOD|. That's unlikely, but making that impossible
reduces the chances that future refactorings will cause unexpected
trouble.
Change-Id: Ie0e35e9f107551a16b49c1eb91d0d3386604e594
Reviewed-on: https://boringssl-review.googlesource.com/7580
Reviewed-by: David Benjamin <davidben@google.com>
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Simplify the code by always caching Montgomery contexts in the RSA
structure, regardless of the |RSA_FLAG_CACHE_PUBLIC| and
|RSA_FLAG_CACHE_PRIVATE| flags. Deprecate those flags.
Now that we do this no more than once per key per RSA exponent, the
private key exponents better because the initialization of the
Montgomery contexts isn't perfectly side-channel protected.
Change-Id: I4fbcfec0f2f628930bfeb811285b0ae3d103ac5e
Reviewed-on: https://boringssl-review.googlesource.com/7521
Reviewed-by: David Benjamin <davidben@google.com>
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I messed up a few of these.
ASN1_R_UNSUPPORTED_ALGORITHM doesn't exist. X509_R_UNSUPPORTED_ALGORITHM does
exist as part of X509_PUBKEY_set, but the SPKI parser doesn't emit this. (I
don't mind the legacy code having really weird errors, but since EVP is now
limited to things we like, let's try to keep that clean.) To avoid churn in
Conscrypt, we'll keep defining X509_R_UNSUPPORTED_ALGORITHM, but not actually
do anything with it anymore. Conscrypt was already aware of
EVP_R_UNSUPPORTED_ALGORITHM, so this should be fine. (I don't expect
EVP_R_UNSUPPORTED_ALGORITHM to go away. The SPKI parsers we like live in EVP
now.)
A few other ASN1_R_* values didn't quite match upstream, so make those match
again. Finally, I got some of the rsa_pss.c values wrong. Each of those
corresponds to an (overly specific) RSA_R_* value in upstream. However, those
were gone in BoringSSL since even the initial commit. We placed the RSA <-> EVP
glue in crypto/evp (so crypto/rsa wouldn't depend on crypto/evp) while upstream
placed them in crypto/rsa.
Since no one seemed to notice the loss of RSA_R_INVALID_SALT_LENGTH, let's undo
all the cross-module errors inserted in crypto/rsa. Instead, since that kind of
specificity is not useful, funnel it all into X509_R_INVALID_PSS_PARAMETERS
(formerly EVP_R_INVALID_PSS_PARAMETERS, formerly RSA_R_INVALID_PSS_PARAMETERS).
Reset the error codes for all affected modules.
(That our error code story means error codes are not stable across this kind of
refactoring is kind of a problem. Hopefully this will be the last of it.)
Change-Id: Ibfb3a0ac340bfc777bc7de6980ef3ddf0a8c84bc
Reviewed-on: https://boringssl-review.googlesource.com/7458
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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People seem to condition on these a lot. Since this code has now been moved
twice, just make them all cross-module errors rather than leave a trail of
renamed error codes in our wake.
Change-Id: Iea18ab3d320f03cf29a64a27acca119768c4115c
Reviewed-on: https://boringssl-review.googlesource.com/7431
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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This removes a hard dependency on |BN_mod_exp|, which will allow the
linker to drop it in programs that don't use other features that
require it.
Also, remove the |mont| member of |bn_blinding_st| in favor of having
callers pass it when necssaary. The |mont| member was a weak reference,
and weak references tend to be error-prone.
Finally, reduce the scope of some parts of the blinding code to
|static|.
Change-Id: I16d8ccc2d6d950c1bb40377988daf1a377a21fe6
Reviewed-on: https://boringssl-review.googlesource.com/7111
Reviewed-by: David Benjamin <davidben@google.com>
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These functions are just like the _mgf1 versions but omit one of the
parameters. It's easier to add them than to patch the callers in some
cases.
Change-Id: Idee5b81374bf15f2ea89b7e0c06400c2badbb275
Reviewed-on: https://boringssl-review.googlesource.com/7362
Reviewed-by: David Benjamin <davidben@google.com>
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All the signature algorithm logic depends on X509_ALGOR. This also
removes the X509_ALGOR-based EVP functions which are no longer used
externally. I think those APIs were a mistake on my part. The use in
Chromium was unnecessary (and has since been removed anyway). The new
X.509 stack will want to process the signatureAlgorithm itself to be
able to enforce policies on it.
This also moves the RSA_PSS_PARAMS bits to crypto/x509 from crypto/rsa.
That struct is also tied to crypto/x509. Any new RSA-PSS code would
have to use something else anyway.
BUG=499653
Change-Id: I6c4b4573b2800a2e0f863d35df94d048864b7c41
Reviewed-on: https://boringssl-review.googlesource.com/7025
Reviewed-by: Adam Langley <agl@google.com>
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(Comment-only change; no functional difference.)
Some code was broken by the |d2i_ECDSA_SIG| change in 87897a8c. It was
passing in a pointer to an existing |ECDSA_SIG| as the first argument
and then simply assuming that the structure would be updated in place.
The comments on the function suggested that this was reasonable.
This change updates the comments that use similar wording to either note
that the function will never update in-place, or else to note that
depending on that is a bad idea for the future.
I've also audited all the uses of these functions that I can find and,
in addition to the one case with |d2i_ECDSA_SIG|, there are several
users of |d2i_PrivateKey| that could become a problem in the future.
I'll try to fix them before it does become an issue.
Change-Id: I769f7b2e0b5308d09ea07dd447e02fc161795071
Reviewed-on: https://boringssl-review.googlesource.com/6902
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
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This check was fixed a while ago, but it could have been much simpler.
In the RSA key exchange, the expected size of the output is known, making the
padding check much simpler. There isn't any use in exporting the more general
RSA_message_index_PKCS1_type_2. (Without knowing the expected size, any
integrity check or swap to randomness or other mitigation is basically doomed
to fail.)
Verified with the valgrind uninitialized memory trick that we're still
constant-time.
Also update rsa.h to recommend against using the PKCS#1 v1.5 schemes.
Thanks to Ryan Sleevi for the suggestion.
Change-Id: I4328076b1d2e5e06617dd8907cdaa702635c2651
Reviewed-on: https://boringssl-review.googlesource.com/6613
Reviewed-by: Adam Langley <agl@google.com>
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This callback is never used. The one caller I've ever seen is in Android
code which isn't built with BoringSSL and it was a no-op.
It also doesn't actually make much sense. A callback cannot reasonably
assume that it sees every, say, SSL_CTX created because the index may be
registered after the first SSL_CTX is created. Nor is there any point in
an EX_DATA consumer in one file knowing about an SSL_CTX created in
completely unrelated code.
Replace all the pointers with a typedef to int*. This will ensure code
which passes NULL or 0 continues to compile while breaking code which
passes an actual function.
This simplifies some object creation functions which now needn't worry
about CRYPTO_new_ex_data failing. (Also avoids bouncing on the lock, but
it's taking a read lock, so this doesn't really matter.)
BUG=391192
Change-Id: I02893883c6fa8693682075b7b130aa538a0a1437
Reviewed-on: https://boringssl-review.googlesource.com/6625
Reviewed-by: Adam Langley <agl@google.com>
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Most functions can take this in as const. Note this changes an
RSA_METHOD hook, though one I would not expect anyone to override.
Change-Id: Ib70ae65e5876b01169bdc594e465e3e3c4319a8b
Reviewed-on: https://boringssl-review.googlesource.com/6419
Reviewed-by: Adam Langley <agl@google.com>
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Although those are only created by code owned by RSA_METHOD, custom RSA_METHODs
shouldn't be allowed to squat our internal fields and then change how you free
things.
Remove 'method' from their names now that they're not method-specific.
Change-Id: I9494ef9a7754ad59ac9fba7fd463b3336d826e0b
Reviewed-on: https://boringssl-review.googlesource.com/6423
Reviewed-by: Adam Langley <agl@google.com>
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This extends 79c59a30 to |RSA_public_encrypt|, |RSA_private_encrypt|,
and |RSA_public_decrypt|. It benefits Conscrypt, which expects these
functions to have the same signature as |RSA_public_private_decrypt|.
Change-Id: Id1ce3118e8f20a9f43fd4f7bfc478c72a0c64e4b
Reviewed-on: https://boringssl-review.googlesource.com/6286
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: If05761052e235b38d9798b2fe4d8ba44293af891
Reviewed-on: https://boringssl-review.googlesource.com/5944
Reviewed-by: Adam Langley <agl@google.com>
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Not content with signing negative RSA moduli, still other Estonian IDs have too
many leading zeros. Work around those too.
This workaround will be removed in six months.
BUG=534766
Change-Id: Ica23b1b1499f9dbe39e94cf7b540900860e8e135
Reviewed-on: https://boringssl-review.googlesource.com/5980
Reviewed-by: Adam Langley <agl@google.com>
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Estonian IDs issued between September 2014 to September 2015 are broken and use
negative moduli. They last five years and are common enough that we need to
work around this bug.
Add parallel "buggy" versions of BN_cbs2unsigned and RSA_parse_public_key which
tolerate this mistake, to align with OpenSSL's previous behavior. This code is
currently hooked up to rsa_pub_decode in RSA_ASN1_METHOD so that d2i_X509 is
tolerant. (This isn't a huge deal as the rest of that stack still uses the
legacy ASN.1 code which is overly lenient in many other ways.)
In future, when Chromium isn't using crypto/x509 and has more unified
certificate handling code, we can put client certificates under a slightly
different codepath, so this needn't hold for all certificates forever. Then in
September 2019, when the broken Estonian certificates all expire, we can purge
this codepath altogether.
BUG=532048
Change-Id: Iadb245048c71dba2eec45dd066c4a6e077140751
Reviewed-on: https://boringssl-review.googlesource.com/5894
Reviewed-by: Adam Langley <agl@google.com>
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We had a few duplicate section names.
Change-Id: I0c9b2a1669ac14392fd577097d5ee8dd80f7c73c
Reviewed-on: https://boringssl-review.googlesource.com/5824
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: I4a30b80a76cb4bb6e9bc488a915488b0a794520e
Reviewed-on: https://boringssl-review.googlesource.com/5591
Reviewed-by: Adam Langley <agl@google.com>
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Running make_errors.go every time a function is renamed is incredibly
tedious. Plus we keep getting them wrong.
Instead, sample __func__ (__FUNCTION__ in MSVC) in the OPENSSL_PUT_ERROR macro
and store it alongside file and line number. This doesn't change the format of
ERR_print_errors, however ERR_error_string_n now uses the placeholder
"OPENSSL_internal" rather than an actual function name since that only takes
the uint32_t packed error code as input.
This updates err scripts to not emit the function string table. The
OPENSSL_PUT_ERROR invocations, for now, still include the extra
parameter. That will be removed in a follow-up.
BUG=468039
Change-Id: Iaa2ef56991fb58892fa8a1283b3b8b995fbb308d
Reviewed-on: https://boringssl-review.googlesource.com/5275
Reviewed-by: Adam Langley <agl@google.com>
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This removes the version field from RSA and instead handles versioning
as part of parsing. (As a bonus, we now correctly limit multi-prime RSA
to version 1 keys.)
Most consumers are also converted. old_rsa_priv_{de,en}code are left
alone for now. Those hooks are passed in parameters which match the old
d2i/i2d pattern (they're only used in d2i_PrivateKey and
i2d_PrivateKey).
Include a test which, among other things, checks that public keys being
serialized as private keys are handled properly.
BUG=499653
Change-Id: Icdd5f0382c4a84f9c8867024f29756e1a306ba08
Reviewed-on: https://boringssl-review.googlesource.com/5273
Reviewed-by: Adam Langley <agl@google.com>
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BUG=499653
Change-Id: If5d98ed23e65a84f9f0e303024f91cce078f3d18
Reviewed-on: https://boringssl-review.googlesource.com/5272
Reviewed-by: Adam Langley <agl@google.com>
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The callback arguments are required to be NULL.
Change-Id: I266ec46efdaca411a7f0c2b645883b2c5bec1c96
Reviewed-on: https://boringssl-review.googlesource.com/5160
Reviewed-by: Adam Langley <agl@google.com>
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Platform crypto APIs for PKCS#1 RSA signatures vary between expecting the
caller to prepend the DigestInfo prefix (RSA_sign_raw) and prepending it
internally (RSA_sign). Currently, Chromium implements sign or sign_raw as
appropriate. To avoid needing both variants, the new asynchronous methods will
only expose the higher-level one, sign.
To satisfy ports which previously implemented sign_raw, expose the DigestInfo
prefix as a utility function.
BUG=347404
Change-Id: I04c397b5e9502b2942f6698ecf81662a3c9282e6
Reviewed-on: https://boringssl-review.googlesource.com/4940
Reviewed-by: Adam Langley <agl@google.com>
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Some of the documentation had the right explanation but the incorrect
function names attached.
Change-Id: I7b479dae6d71a5ac7bc86df5a3890508c3b3d09f
Reviewed-on: https://boringssl-review.googlesource.com/5090
Reviewed-by: Adam Langley <agl@google.com>
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RSA with more than two primes is specified in
https://tools.ietf.org/html/rfc3447, although the idea goes back far
earier than that.
This change ports some of the changes in
http://rt.openssl.org/Ticket/Display.html?id=3477&user=guest&pass=guest
to BoringSSL—specifically those bits that are under an OpenSSL license.
Change-Id: I51e8e345e2148702b8ce12e00518f6ef4683d3e1
Reviewed-on: https://boringssl-review.googlesource.com/4870
Reviewed-by: Adam Langley <agl@google.com>
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This change converts the reference counts in crypto/ to use
|CRYPTO_refcount_t|. The reference counts in |X509_PKEY| and |X509_INFO|
were never actually used and so were dropped.
Change-Id: I75d572cdac1f8c1083c482e29c9519282d7fd16c
Reviewed-on: https://boringssl-review.googlesource.com/4772
Reviewed-by: Adam Langley <agl@google.com>
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Callers are required to use the wrappers now. They still need OPENSSL_EXPORT
since crypto and ssl get built separately in the standalone shared library
build.
Change-Id: I61186964e6099b9b589c4cd45b8314dcb2210c89
Reviewed-on: https://boringssl-review.googlesource.com/4372
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: I0fb680d088425df8fca558bf8d4213f251eb0a96
Reviewed-on: https://boringssl-review.googlesource.com/4340
Reviewed-by: Adam Langley <agl@google.com>
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OpenSSH, especially, does some terrible things that mean that it needs
the EVP_CIPHER structure to be exposed ☹. Damian is open to a better API
to replace this, but only if OpenSSL agree too. Either way, it won't be
happening soon.
Change-Id: I393b7a6af6694d4d2fe9ebcccd40286eff4029bd
Reviewed-on: https://boringssl-review.googlesource.com/4330
Reviewed-by: Adam Langley <agl@google.com>
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This introduces a per-RSA/DSA/DH lock. This is good for lock contention,
although pthread locks are depressingly bloated.
Change-Id: I07c4d1606fc35135fc141ebe6ba904a28c8f8a0c
Reviewed-on: https://boringssl-review.googlesource.com/4324
Reviewed-by: Adam Langley <agl@google.com>
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Also, set sensible defaults for the command-line arguments to doc.go.
Change-Id: Iefd2ade4c9095489efa0ae1059007593fc84923a
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(system/keymaster is using them now.)
Change-Id: I8fba501005b9318b7d3a76bf1715fb772b23c49d
Reviewed-on: https://boringssl-review.googlesource.com/4092
Reviewed-by: Adam Langley <agl@google.com>
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This saves about 6-7k of error data.
Change-Id: Ic28593d4a1f5454f00fb2399d281c351ee57fb14
Reviewed-on: https://boringssl-review.googlesource.com/3385
Reviewed-by: Adam Langley <agl@google.com>
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The use in s3_srvr.c doesn't care (it doesn't even have to be in bounds), but
it's good to have the value be initialized and not a function of the input.
(The old uninitialized case wasn't hit in s3_srvr.c because of the earlier
bounds check.)
Change-Id: Ib6b418b3c140aa564f8a46da3d34bb2b69f06195
Reviewed-on: https://boringssl-review.googlesource.com/2845
Reviewed-by: Adam Langley <agl@google.com>
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This is intended for TLS client auth with Windows CAPI- and CNG-backed keys
which implement sign over sign_raw and do not support all hash functions. Only
plumbed through RSA for now.
Change-Id: Ica42e7fb026840f817a169da9372dda226f7d6fd
Reviewed-on: https://boringssl-review.googlesource.com/2250
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: If7752709727fe33ba38a9d414089253bb2f89ea2
Reviewed-on: https://boringssl-review.googlesource.com/1558
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
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This change extracts two, common parts of RSA_decrypt and RSA_sign into
a function called |private_transform|. It also allows this to be
overridden in a method, which is convenient for opaque keys that only
expose the raw RSA transform as it means that the padding code from
BoringSSL can be easily reimplemented.
One significant change here is that short RSA ciphertexts will no longer
be accepted. I think this is correct and OpenSSL has a comment about PGP
mistakenly stripping leading zeros. However, these is the possibility
that it could break something.
Change-Id: I258c5cbbf21314cc9b6e8d2a2b898fd9a440cd40
Reviewed-on: https://boringssl-review.googlesource.com/1554
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: I2096f760165f7aaa9b5d922a2e6d4d755365087b
Reviewed-on: https://boringssl-review.googlesource.com/1372
Reviewed-by: Adam Langley <agl@google.com>
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This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.
On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h
In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.
In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.
Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>
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Where possible, functions should return one for success and zero for
error. The use of additional negative values to indicate an error is,
itself, error prone.
This change fixes many EVP functions to remove the possibility of
negative return values. Existing code that is testing for <= 0 will
continue to function, although there is the possibility that some code
was differentiating between negative values (error) and zero (invalid
signature) for the verify functions and will now show the wrong error
message.
Change-Id: I982512596bb18a82df65861394dbd7487783bd3d
Reviewed-on: https://boringssl-review.googlesource.com/1333
Reviewed-by: Adam Langley <agl@google.com>
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This is function that is available in OpenSSL too. Here it only returns
zero or one and doesn't do expensive primality checks on p and q.
https://code.google.com/p/chromium/issues/detail?id=396250
Change-Id: I7a173da26e06440dbb595fb717e3a620edf23576
Reviewed-on: https://boringssl-review.googlesource.com/1334
Reviewed-by: Adam Langley <agl@google.com>
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Although the PKCS#1 padding check is internally constant-time, it is not
constant time at the crypto/ ssl/ API boundary. Expose a constant-time
RSA_message_index_PKCS1_type_2 function and integrate it into the
timing-sensitive portion of the RSA key exchange logic.
Change-Id: I6fa64ddc9d65564d05529d9b2985da7650d058c3
Reviewed-on: https://boringssl-review.googlesource.com/1301
Reviewed-by: Adam Langley <agl@google.com>
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Custom RSA and ECDSA keys may not expose the key material. Plumb and "opaque"
bit out of the *_METHOD up to EVP_PKEY. Query that in ssl_rsa.c to skip the
sanity checks for certificate and key matching.
Change-Id: I362a2d5116bfd1803560dfca1d69a91153e895fc
Reviewed-on: https://boringssl-review.googlesource.com/1255
Reviewed-by: Adam Langley <agl@google.com>
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