Get the up_ref functions and signature accessors.
Change-Id: Ie12e3a48ccc7e4c165ba08001232f5453e3dca11
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45945
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
The X509 version APIs confuse everyone, including our own tests
(v3name_test.cc was using the wrong value). Introduce constants. Also
document which version to use for each type. It is extra confusing that,
although certificates and CRLs use the same Version enum, RFC5280
defines X.509 v3 certificates with X.509 v2 CRLs. (There are no v3
CRLs.)
I'll send a similar patch to OpenSSL to keep upstream aligned.
Change-Id: If096138eb004156d43df87a6d74f695b04f67480
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45944
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This is a no-op, but relying on ASN1_INTEGER_get's internal handling of
NULL is confusing.
Change-Id: I49ab38c170d2f39fd3a4780b8c44b103a2ba4615
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45924
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I85f0364b83440469c0d15c32dd96607be31fc1b7
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45904
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
There are a few places where it is useful to run ECDSA with a specified
nonce:
- An ECDSA KAT in the module self-check
- Unit tests for particular test vectors
- Fuzzing the implementation (requested by the cryptofuzz project)
This replaces the fixed_k machinery with a separate function. Although
they are effectively the same, I've used two different functions.
One is internal and only used in the module self-check. The other is
exported for unit tests and cryptofuzz but marked with a for_testing.
(Chromium's presubmits flag uses of "for_testing" functions outside of
unit tests. The KAT version isn't in a test per se, so it's a separate
function.)
Bug: 391
Change-Id: I0f764d89bf0ac2081307e1079623d508fb0f2df7
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45867
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The extra computation in the "setup" half is a remnant of
ECDSA_sign_setup, which was designed to amortize the message-independent
portion of the signature. We don't care about this amortization, but we
do want some control over k for testing. Instead, have ecdsa_sign_impl
take k and do the rest.
In doing so, this lets us compute m and kinv slightly later, which means
fewer temporaries are needed.
Bug: 391
Change-Id: I398004a5388ce5b7e839db6c36edf8464643d16f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45866
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
In FIPS mode, we maintain a lock in order to implement clearing DRBG
state on process shutdown. This lock serves two purposes:
1. It protects the linked list of all DRBG states, which needs to be
updated the first time a thread touches RAND_bytes, when a thread
exits, and on process exit.
2. It ensures threads alive during process shutdown do not accidentally
touch DRBGs after they are cleared, by way of taking a ton of read
locks in RAND_bytes across some potentially time-consuming points.
This means that when one of the rare events in (1) happens, it must
contend with the flurry of read locks in (2). Split these uses into two
locks. The second lock now only ever sees read locks until process
shutdown, and the first lock is only accessed in rare cases.
Change-Id: Ib856c7a3bb937bbfa5d08534031dbf4ed3315cab
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45844
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This mirrors a change on the C side. Sessions may store the master
secret (main secret as of draft-ietf-tls-rfc8446bis-01) in TLS 1.2 or
the resumption PSK in TLS 1.3, so giving it any description other than
plain 'secret' isn't even accurate.
(Doing this separately from the rfc8446bis names since it's a bit less
mechanical.)
Change-Id: Iaf2b72fe298f17eeb4f4957cfd78b0015c3a9d89
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45824
Reviewed-by: Adam Langley <agl@google.com>
This is a very very basic sanity check on k generation, but it helps
make sure we haven't *completely* disconnected the RNG.
Change-Id: If7ae5dd6be3d0866962cd966b8c1ed1cdedffb50
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45865
Reviewed-by: Adam Langley <agl@google.com>
Trusty requires its own trusted app to implement the ACVP modulewrapper
functionality for validation. Separate the frontend from the generic
functions that implement each algorithm.
Change-Id: I86802b66c627ce4f5b5ddd54555a386e8e993eed
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45604
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Make sure the recent changes to the builders all work.
Change-Id: I0eca1b7732da29a14325673deeb031c8863b45b8
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45724
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
These are ultimately just the upstream tarballs, but it's one less
ad-hoc script to maintain.
Change-Id: Ia93a7a9d4944d482e4e4137587998790e8e59294
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45784
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Newer versions of CMake have some fix for default libraries on
Windows/ARM64. (Not sure exactly what version, but the latest CMake does
seem to work.)
While trying to update the others, it turns out my workstation no longer
makes CMake builds compatible with the builders. It's also tedious that
updating CMake requires making builds myself. Fortunately, Chrome infra
is maintains some packages of third-party software in CIPD.
However, they don't make Windows CMake builds (filed
https://crbug.com/1180257 to request them), and they're stuck on 3.13.x
(blocked on https://crbug.com/1176531).
So, this CL switches to CIPD for Mac/Linux, with the latest version they
have available. It sticks with the old method (uploading copies of
upstream's packages) for Windows and grabs the latest version. When both
of the bugs above are fixed, hopefully things will be more uniform.
Change-Id: I710091fc60594165738a893b2be73cdcef54dfe2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45764
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
In trying to figure out an ARM64 builder issue, I tried VS2019. That
didn't fix the ARM64 issue, but it did reveal that I ported over some of
the logic from Chromium wrong. For "new-style" paths, the toolchain
directory should be toolchain_data['path'], not the parent directory of
win_sdk.
(The latest VS2019 package in Chromium puts win_sdk a few directories
down from the toolchain root.)
This CL should be a no-op for now because all our current toolchains use
Chromium's "old-style" win_sdk-relative paths.
Change-Id: I8ad7784abb479d1ede3995a44433e57448e8debf
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45744
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This reverts commit 4251d0d3f6, except
that the reland dates have been updated to not be in the past.
Change-Id: I7812c0e36d87ed1e049ec0a7d92a23efec881a81
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45704
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
I've left libc++ and Android tools for now. libc++ is running into
https://crbug.com/1166707. I'm not sure what's wrong with the Android
tools. (CMAKE_LINKER isn't defined for some reason, but it's defined on
my machine.)
We'll also want to update the builders before the NDK anyway. The new
NDK now defaults to ANDROID_ARM_NEON=TRUE.
Change-Id: I1c0fbc3e26368c04d31464477a51e04209aec7ba
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45544
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
While I'm here, rewrite it a bit to align more with our preferred style.
(No assignments in conditions, no need for NULL checks on free
functions.)
See also 64a1b940d2b640e5edf0feae90e81bbb6b4941e7 from upstream.
Change-Id: I99a122343541e89d5950888de2c708cfa3ec45e2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45686
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CVE-2021-23840
(Imported from upstream's 6a51b9e1d0cf0bf8515f7201b68fb0a3482b3dc1.)
This differs slightly from upstream's version:
- EVP_R_OUTPUT_WOULD_OVERFLOW didn't seem necessary when ERR_R_OVERFLOW
already exists. (Also since we use CIPHER_R_*, it wouldn't have helped
with compatibility anyway. Though there's probably something to be
said for us folding CIPHER_R_* back into EVP_R_*.)
- For simplicity, just check in_len + bl at the top, rather than trying
to predict the exact number of bytes written.
Update-Note: Passing extremely large input lengths into EVP_CipherUpdate
will now fail. Use EVP_AEAD instead, which is size_t-based and has more
explicit output bounds.
Change-Id: I31835c89dcdecb6b112828f57deb798dc7187db5
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45685
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Update-Note: No one uses this function. It had a NULL dereference in
some error cases. See CVE-2021-23841.
Change-Id: Ie1cc97615ac8b674147715d7d62e62faf218ae65
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45684
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This fixes an issue in a99308f that caused Bazel builds to break during
the analysis phase.
Change-Id: Ib26e70a52730f04905c2b2f137674f297488ec4f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45665
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This lets the builders pass it in via gclient_vars. Once this lands,
I'll make the builders fill it in, at which point we can remove the
magic 'env' value and the logic in the recipe.
Change-Id: Idfc4db3e4cdecf62eacbb2925fd545e1a76b2c79
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45624
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Newer versions of Bazel use a different setting for the crosstool_top
flag, depending on the NDK toolchain in use. This change detects these
crosstools and builds them using Android flags.
Fixes: 180083900
Change-Id: I937d18e53d72b2911e1c472adbce65282d31885d
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45564
Commit-Queue: Justin Paupore <jpaupore@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This aligns with OpenSSL's behavior. RFC7301 says servers should return
no_application_protocol if the client supported ALPN but no common
protocol was found. We currently interpret all values as
SSL_TLSEXT_ERR_NOACK. Instead, implement both modes and give guidance on
whne to use each. (NOACK is still useful because the callback may be
shared across multiple configurations, some of which don't support ALPN
at all. Those would want to return NOACK to ignore the list.)
To match upstream, I've also switched SSL_R_MISSING_ALPN, added for
QUIC, to SSL_R_NO_APPLICATION_PROTOCOL.
Update-Note: Callers that return SSL_TLSEXT_ERR_ALERT_FATAL from the
ALPN callback will change behavior. The old behavior may be restored by
returning SSL_TLSEXT_ERR_NOACK, though see the documentation for new
recommendations on return values.
Change-Id: Ib7917b5f8a098571bed764c79aa7a4ce0f728297
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45504
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Sometimes JSON vector files contain a header element that must be
duplicated into the output and sometimes they don't. Auto-detect this by
looking for a “url” field in the first element.
Change-Id: I76046adb8ea64fe5ac9bae9d6583546504723918
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45524
Reviewed-by: David Benjamin <davidben@google.com>
This is largely some cleanup so the three features follow the same
patterns and is hopefully cleaner (no more separate static and
non-static paths). The practical impact is probably nil. (Linux-based
ARM builds with crypto extensions as a baseline, if any exist, save
binary size.)
Change-Id: I2214b1a54e2074024b8eeb51799a08b94646cbf3
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45485
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
When a feature is enabled statically in the build config, the compiler
defines __ARM_NEON and also considers itself free to emit NEON code.
In this case, there is no need to check for NEON support at runtime
since the binary will not work without NEON anyway. Moving the check to
compile time lets us drop unused code.
Chrome has required NEON on Android for nearly five years now. However,
historically there was a bad CPU which broke on some NEON code, but not
others. See https://crbug.com/341598 and https://crbug.com/606629. We
worked around that CPU by parsing /proc/cpuinfo and intentionally
dropping the optimization. This is not a stable situation, however, as
we're hoping the compiler is not good enough at emitting NEON to trigger
this bug.
Since then, the number of affected devices has dropped, and Chrome has
raised the minimum Android requirement to L. The Net.HasBrokenNEON
metric from Chrome is now well in the noise.
This CL stops short of removing the workaround altogether because some
consumers of Cronet are unsure whether they needed this workaround.
Those consumers also build without __ARM_NEON, so gating on that works
out. We'll decide what to do with it pending metrics from them.
Update-Note: Builds with __ARM_NEON (-mfpu=neon) will now drop about
30KiB of dead code, but no longer work (if they even did before) on a
particular buggy CPU. Builds without __ARM_NEON are not affected.
Change-Id: Id8f7bccfb75afe0a1594572ea20c51d275b0a256
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45484
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CMAC-AES isn't inside our FIPS module, it's only included in
modulewrapper in order to test acvptool. Mark it with a special tag to
avoid it appearing when dumping regcap JSON because NIST paperwork is
such that it's better not to ACVP test such code.
Change-Id: I0c6d3a38bce9bf5766b889677eb3f7de94262c24
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45465
Reviewed-by: David Benjamin <davidben@google.com>
This is only used for testing acvptool but, yea, |memcmp| doesn't return
a bool 😳
This wasn't noticed because "ver" mode was missing from the registration
and thus from the test vectors.
Change-Id: I181c9b66aea4032543d39ebcc8728a01e0f34f55
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45464
Commit-Queue: Adam Langley <alangley@gmail.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
test_fips probably needs to exercise everything that we have self-tests
for.
(The following change will eliminate the duplication of the code to
create the FFDH group. For reasons, that can't be done in this change.)
Change-Id: Ia72064db77381e7cf396a34b4723b2607f26f00b
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45404
Reviewed-by: Adam Langley <alangley@gmail.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
This fixes the build for folks not using bcm.c.
Change-Id: I47935d8af7cb5a12ff2918ee2a8774182681d930
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45384
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The check was happening in code that only ran at TLS 1.2, so we weren't
testing anything. Additionally check the resumption case. While we do
handle it correctly, we only manage it due to the weird OpenSSL quirk
we've carried over from TLS 1.2 tickets where we synthesize a session ID
for TLS 1.3 tickets. (Is that still needed?)
That's subtle enough to warrant a test, and some other implementations
reuse our test suite, so it's worth the coverage there.
Change-Id: I83cc355bd853097ec6edcd2cc40b06b19e3b00e5
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45324
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
A linter was complaining about some instance, so just fix the lot of it.
Change-Id: I7e23cbada6e42da887d740b84a05de9f104a86ab
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45284
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CMAC is not inside our FIPS module and we have ACVP support for it just
for testing (other modules need to validate CMAC). This change makes the
CMAC verify test an explicit action for the module wrapper so that a
verification function exposed by a FIPS module can be tested.
Change-Id: I3943bde175f2c1d62881002b4e12d7bca68a9018
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45264
Reviewed-by: David Benjamin <davidben@google.com>
Probably worth benchmarking this, given it slows down every process
startup.
Change-Id: I603c79a445203f87e26fa23d9afc4450688f2929
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45245
Reviewed-by: Adam Langley <agl@google.com>
GCC 10.2.1 seems to be emitting code like this:
movq gcm_gmult_clmul@GOTPCREL(%rip), %xmm0
movhps gcm_ghash_clmul@GOTPCREL(%rip), %xmm0
movaps %xmm0, (%rsp)
This is assembling a pair of function pointers in %xmm0 and writing the
two out together. I've not observed the compiler output movlps, but
supporting movhps and movlps are about as tricky. The main complication
is that these instructions preserve the unwritten half of the
destination, and they do not support register sources, only memory.
This CL supports them by loading in a general-purpose register as we
usually do, pushing the register on the stack, and then running the
instruction on (%rsp). Some alternatives I considered:
- Save/restore a temporary XMM register and then use MOVHLPS and
MOVLHPS. This would work but require another saveRegister-like
wrapper.
- Take advantage of loadFromGOT ending in a memory mov and swap out
the final instruction. This would be more efficient, but we downgrade
GOT-based accesses to local symbols to a plain LEA. The compiler will
only do this when we write a pair of function pointers in a row, so
trying to optimize the non-local symbols seems not worth the trouble.
(Really the compiler should not be emitting GOT-relative loads at all,
but the compiler doesn't know these symbols will be private and in the
same module, so it has a habit of pessimally using GOT-based loads.)
This option seemed the simplest.
Change-Id: I8c4915a6a0d72aa4c5f4d581081b99b3a6ab64c2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45244
Reviewed-by: Adam Langley <agl@google.com>
This invovles a |2048|^|225| modexp, which is far from ideal, but is now
required in FIPS mode.
Change-Id: Id7384b4ba92aa74e971231bc44fa0f10434d18e2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45085
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Revision 1.0 is this test is reportedly no longer acceptable and we have
to use the “SSC” version now. The documentation for this test doesn't
mention that a “z” field is possible, but that's what the test vectors
from the demo server contain and, after guessing at the correct response
format, this makes the NIST server happy.
Change-Id: Ic63d9e19998dc015733d847cd0330a3af1d5e7e6
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45224
Reviewed-by: David Benjamin <davidben@google.com>
Our use-case for this does not require optimisation at the current time,
so a clean C implementation is fine.
Change-Id: I8f29572c33e8dbcc37961c099c71c14aafc8d0a3
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45164
Reviewed-by: David Benjamin <davidben@google.com>
NIST currently seems to have a bug where they don't respect the regcap
for AES-CTR and return fractional-byte tests when not allowed.
Previously we didn't notice that the specified payload length didn't
match the actual value.
Change-Id: I0e48d5246f7250e6047d983cd016b0de290d0f70
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45205
Reviewed-by: David Benjamin <davidben@google.com>
In order to support cross-compiling:
1) inject-hash needs to know to use SHA-256 for the hash function
on Android. Since that's a good idea on Aarch64 in general
(due to common hardware support), do it for all Aarch64.
2) We need to use the compiler to run the preprocessor, not plain
cpp, because the compiler will get the built-in #defines right.
Change-Id: Ie00d46e9e6d489fcb9e3f3e5e625aa289c7e0d73
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45044
Reviewed-by: David Benjamin <davidben@google.com>
The NIST production server doesn't like this.
Change-Id: I22ce31e822107f176eb97f7632ea2777c6ab4a44
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45184
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
QUICHE currently does not know to call
SSL_set_quic_use_legacy_codepoint, picking up the current default of the
legacy code point. It then assumes that the
TLSEXT_TYPE_quic_transport_parameters constant may be used to extract
transport parameters, so after
https://boringssl-review.googlesource.com/c/boringssl/+/44704, it
breaks.
To smooth over the transition, we now define three constants:
TLSEXT_TYPE_quic_transport_parameters_legacy,
TLSEXT_TYPE_quic_transport_parameters_standard, and the old constant.
The old constant will match whatever the default is (for now, legacy) so
the default is self-consistent. Then plan is then:
1. BoringSSL switches to the state in this CL: the default code point
and constant are the legacy one, but there are APIs to specify the
code point. This will not affect QUICHE, which only uses the
defaults.
2. QUICHE calls SSL_set_quic_use_legacy_codepoint and uses the
corresponding _legacy or _standard constant. It should *not* use the
unsuffixed constant at this point.
3. BoringSSL switches the default setting and the constant to the
standard code point. This will not affect QUICHE, which explicitly
configures the code point it wants.
4. Optional: BoringSSL won't switch the default back to legacy, so
QUICHE can switch _standard to unsuffixed and BoringSSL
can remove the _standard alias (but not the function) early.
5. When QUICHE no longer needs both code points, it unwinds the
SSL_set_quic_use_legacy_codepoint code and switches back to the
unsuffixed constant.
6. BoringSSL removes all this scaffolding now that it's no longer
needed.
Update-Note: This this fixes a compatibility issue with
https://boringssl-review.googlesource.com/c/boringssl/+/44704.
Change-Id: I9f75845aba58ba93e9665cd6f05bcd080eb5f139
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45124
Reviewed-by: David Schinazi <dschinazi@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
We clear all heap memory on free now, thus the difference between these
functions is quite small. There are some differences though:
Firstly, BN_clear_free will attempt to zero out static limb data. But
static data is probably read-only and thus trying to zero it will crash.
Secondly it will try to zero out the BIGNUM structure itself. But either
it's on the heap, and will be zeroed anyway, or else it's on the stack,
and we don't try and clear the stack in general because the compiler is
duplicating bits of it at will anyway.
Change-Id: I8a07385a102cfd308b555432942225c25eb7c12d
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/45084
Reviewed-by: David Benjamin <davidben@google.com>
Add Aarch64 support to delocate. Since it's a modern ISA, it's actually
not too bad once I understood the behaviour of the assembler.
Change-Id: I105fede43b5196b7ff7bdbf1ee71c6cfa2fc1aab
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/44848
Reviewed-by: David Benjamin <davidben@google.com>
David Benjamin
Adam Langley
Stephen Crane
Adam Langley
Justin Paupore
Dan McArdle