This is a version of PKCS7_get_certificates but does not require
crypto/x509.
BUG=54
Change-Id: I20152a8d1f3ed866d47e41fe576ea9f442490224
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A follow-up change will add a CRYPTO_BUFFER variant. This makes the
naming match the header and doesn't require including x509.h. (Though
like ssl.h and pkcs8.h, some of the functions are implemented with code
that depends on crypto/x509.)
Change-Id: I5a7de209f4f775fe0027893f711326d89699ca1f
Reviewed-on: https://boringssl-review.googlesource.com/15128
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BUG=76
Change-Id: I8b754ba17b3e0beee425929e4b53785b2e95f0ae
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I had a brain-fart and had in mind that strings.Index(x[i:], _) would
return a value relative to the beginning of |x|, which is impossible.
Change-Id: I905ea1fa3469ea13f2e3b782c4baf2431b615a2f
Reviewed-on: https://boringssl-review.googlesource.com/15146
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This also fixes TestGetUint to actually test CBS_get_last_u8's behavior.
Right now it can't distinguish CBS_get_last_u8 and CBS_get_u8.
BUG=129
Change-Id: Ie431bb1a828f1c6877938ba7e75c82305b54cf13
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BUG=129
Change-Id: If91d97ea653177d55d5c703f091366ddce24da60
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This is not actually sensible, but it seemed really funny. PEM files
sometimes carry private keys so, in principle, we'd probably prefer not
to leak the contents when we encode or decode them?
Change-Id: I7b056612bd7f22c28853bc89f56aee1f5103b8fb
Reviewed-on: https://boringssl-review.googlesource.com/15047
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FIPS 186-4 prescribes a particular ECDSA nonce selection algorithm,
implemented by BN_range_range_ex. Recast our nonce hardening mechanism
as additional data to be passed into the RBG during that algorithm.
Change-Id: Ic16a10cd58fd7deb7461f0c109a698ea80faff00
Reviewed-on: https://boringssl-review.googlesource.com/15046
Reviewed-by: Adam Langley <agl@google.com>
Rather than comparing against both min and max, FIPS prefers comparing
with max - min and adding min. It also does not believe in using
3*range. Align with it, though our old algorithm trivially produces the
same probability distribution on values.
Change-Id: I447cc3608b92ba93706489d702b8d6a68047f491
Reviewed-on: https://boringssl-review.googlesource.com/15045
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FIPS requires that the output of the entropy source be checked to ensure
that no two n-bit blocks are equal.
Change-Id: Ia086ca5c888770e0fd71ee052278f77b544b9983
Reviewed-on: https://boringssl-review.googlesource.com/14926
Reviewed-by: Adam Langley <agl@google.com>
We already do this in the case that getrandom is supported. This change
adds a polling loop for the case where we are using /dev/urandom.
This makes FIPS imply Linux, which I think is fine for the time being.
Change-Id: I9bf5c0f51a908621655cbcc47fc86b0366168b97
Reviewed-on: https://boringssl-review.googlesource.com/14925
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Fork-unsafe buffering was a mode that could be enabled by applications
that were sure that they didn't need to worry about state duplication.
It saved reads to urandom.
Since everything is now going through the CTR-DRBG, we can get the same
effect by simply not reading additional data from urandom in this case.
This change drops the buffering from urandom.c and, instead, implements
fork-unsafe buffering as a mode that skips reading additional data from
urandom, which only happened when RDRAND wasn't available anyway.
Since we expect the power-on self-tests to call into the PRNG, this
change also makes the flag capable of changing at any point by using a
mutex rather than a once. This is split into a separate file so that it
doesn't have to go into the FIPS module—since it uses r/w data that
would be a pain.
Change-Id: I5fd0ead0422e770e35758f080bb1cffa70d0c8da
Reviewed-on: https://boringssl-review.googlesource.com/14924
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This isn't actually used yet, but implements CTR-DRBG from SP 800-90Ar1.
Specifically, it always uses AES-256 and no derivation function.
Change-Id: Ie82b829590226addd7c165eac410a5d584858bfd
Reviewed-on: https://boringssl-review.googlesource.com/14891
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I73213b5d9f3ac67bab70e3d9a36a4b67c558f3f5
Reviewed-on: https://boringssl-review.googlesource.com/15044
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Otherwise the order changes each time, which will make the build
egregiously non-deterministic.
Change-Id: Idd501ecd118c61a27566eafc61157715e48758bc
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References to global symbols generate relocations, which breaks the
integrity check.
Change-Id: If6fa06d5d924294ab496c32e7f082a1ae60fdb24
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Some assembly code references “OPENSSL_ia32cap_P+4(%rip)” etc, which
slipped by the previous check.
Change-Id: I22c3fbf9883aea695e8584857bf9c0e3113f9a77
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Since only the consumers knows whether an EC key will be used for
ECDSA or ECDHE, it is part of the FIPS policy for the consumer to
check the validity of the generated key before signing with it.
Change-Id: Ie250f655c8fcb6a59cc7210def1e87eb958e9349
Reviewed-on: https://boringssl-review.googlesource.com/14745
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This moves the kinv computation next to k generation and adds a check for group
size as per 186-4 B.5.2.
Change-Id: I8744080d3961bc9e29054985280fc835e3f1e25c
Reviewed-on: https://boringssl-review.googlesource.com/14944
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It's not obvious how to make ASAN happy with the integrity test but this
will let us test FIPS-only code with ASAN at least.
Change-Id: Iac983787e04cb86a158e4416c410d9b2d1e5e03f
Reviewed-on: https://boringssl-review.googlesource.com/14965
Reviewed-by: Adam Langley <agl@google.com>
FIPS is not compatible with multiprime RSA. Any multiprime RSA private
keys will fail to parse after this change.
Change-Id: I8d969d668bf0be4f66c66a30e56f0e7f6795f3e9
Reviewed-on: https://boringssl-review.googlesource.com/14984
Reviewed-by: Adam Langley <agl@google.com>
FIPS prescribes a slightly different key generation algorithm than we
use. Specifically:
- Rather than using BN_RAND_TOP_TWO (so using 1.5 as an upper bound for
sqrt(2)), it prescribes using sqrt(2) itself. To avoid unnecessary
squaring, we do a comparison against a hard-coded approximation for
sqrt(2) good enough for the largest FIPS key size. I went ahead and
made it constant-time since it was easy, but all this is far from
constant-time.
- FIPS requires a check that |p-q| is sufficiently large.
- FIPS requires a check that d is sufficiently large.
- BN_generate_prime_ex adds some delta to clear a table of prime
numbers. FIPS does not specify any of that, so implement a separate
routine here.
The primality test itself will be aligned in a follow-up. For now, it is
left unchanged, except that trial division is turned back on. That makes
things faster and is analogous the original algorithm's delta-munging
logic.
Change-Id: If32f0635bfb67a8c4740dedd7781d00647bbf60b
Reviewed-on: https://boringssl-review.googlesource.com/14948
Reviewed-by: Adam Langley <agl@google.com>
Previously, inject-hash would run the FIPS module in order to trigger a
failure and then extract the calculated hash value from the output. This
makes cross-compiling difficult because the build process needs to run a
binary for the target platform.
This change drops this step. Instead, inject-hash.go parses the object
file itself and calculates the hash without needing to run the module.
Change-Id: I2593daa03094b0a17b498c2e8be6915370669596
Reviewed-on: https://boringssl-review.googlesource.com/14964
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The FIPS RSA generation algorithm is unkind to keys with funny bit
sizes. Odd numbers of bits are especially inconvenient, but the sqrt(2)
bound is much simpler if the key size is a multiple of 128 (thus giving
prime sizes a multiple of 64, so the sqrt(2) bound is easier to work
with).
Also impose a minimum RSA key size. 255-bit RSA is far too small as it
is and gives small enough primes that the p-q FIPS bound (2^(n/2-100))
starts risking underflow.
Change-Id: I4583c90b67385e53641ccee9b29044e79e94c920
Reviewed-on: https://boringssl-review.googlesource.com/14947
Reviewed-by: Adam Langley <agl@google.com>
This is just some idle cleanup. The padding functions already must
handle size checks. Swap out the error code in the low-level portions to
keep that unchanged.
Also remove an old TODO(fork) about constant-time-ness. Signature
verification padding checks don't need to be constant time, and
decryption ones should be resolved now.
Change-Id: I20e7affdb7f2dce167a304afe707bfd537dd412a
Reviewed-on: https://boringssl-review.googlesource.com/14946
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I9f7f1dd609c38d1f4be536daff94a4ba002582d0
Reviewed-on: https://boringssl-review.googlesource.com/14888
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Later CLs will unwind the rest of multiprime RSA support. Start with key
generation.
Change-Id: Id20473fd55cf32c27ea4a57f2d2ea11daaffedeb
Reviewed-on: https://boringssl-review.googlesource.com/14870
Reviewed-by: Adam Langley <agl@google.com>
That file was getting too huge and we only need to de-static a single
function to do it.
Change-Id: Ie2c0bc90a7e538a74318c364a136c337ce8d9bbb
Reviewed-on: https://boringssl-review.googlesource.com/14884
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As a precursor to removing the code entirely later, disable the protocol
by default. Callers must use SSL_CTX_set_min_version to enable it.
This change also makes SSLv3_method *not* enable SSL 3.0. Normally
version-specific methods set the minimum and maximum version to their
version. SSLv3_method leaves the minimum at the default, so we will
treat it as all versions disabled. To help debugging, the error code is
switched from WRONG_SSL_VERSION to a new NO_SUPPORTED_VERSIONS_ENABLED.
This also defines OPENSSL_NO_SSL3 and OPENSSL_NO_SSL3_METHOD to kick in
any no-ssl3 build paths in consumers which should provide a convenient
hook for any upstreaming changes that may be needed. (OPENSSL_NO_SSL3
existed in older versions of OpenSSL, so in principle one may encounter
an OpenSSL with the same settings.)
Change-Id: I96a8f2f568eb77b2537b3a774b2f7108bd67dd0c
Reviewed-on: https://boringssl-review.googlesource.com/14031
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Change-Id: I92419b7d2d8ded8f4868588ad3c24b70ac7f7b1b
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Change-Id: I3134b2ed1b2000bf2413c066c6560832c0ff03ae
Reviewed-on: https://boringssl-review.googlesource.com/14704
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The built-in CMake support seems to basically work, though it believes
you want to build a fat binary which doesn't work with how we build
perlasm. (We'd need to stop conditioning on CMAKE_SYSTEM_PROCESSOR at
all, wrap all the generated assembly files in ifdefs, and convince the
build to emit more than one. Probably not worth bothering for now.)
We still, of course, need to actually test the assembly on iOS before
this can be shipped anywhere.
BUG=48
Change-Id: I6ae71d98d706be03142b82f7844d1c9b02a2b832
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These two functions behave identically if the input is a word, which is
true if bits <= BN_BITS2. This also matches upstream's version of the
function. I'm guessing the patch was originally submitted as we have it,
perhaps because we didn't notice BN_get_word at the time, and it got
switched to the existing BN_get_word function in review.
Change-Id: I7847e3086aab871c5aa28e15fae6f89c964862d1
Reviewed-on: https://boringssl-review.googlesource.com/14331
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Windows doesn't like uninitialized function-level static consts and
Android complains we're casting away a volatile.
Change-Id: I7c53de45cff9fa2ef298f015cf3f5ecca82194d0
Reviewed-on: https://boringssl-review.googlesource.com/14807
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This restores the original version of delocate.go, with the subsequent
bugfixes patched in. With this, the FIPS module builds with GCC and
Clang, with and without optimizations. I did patch over a variant of the
macro though, since it was otherwise really wordy.
Playing games with sections was a little overly clever and relied on the
compiler not performing a number of optimizations. Clang blew threw all
of those assumptions.
Change-Id: Ib4da468a5925998457994f9e392cf0c04573fe91
Reviewed-on: https://boringssl-review.googlesource.com/14805
Reviewed-by: Adam Langley <agl@google.com>
This fixes two issues in clang.
- clang emits callq instead of call.
- clang emits .cfi_endproc after .size for the dummy functions. This
causes it to get confused as there is no matching .cfi_startproc.
Don't bother trying to omit the dummy functions.
Alas, clang seems to compile the DEFINE_METHOD_FUNCTION hooks in a way
that brings the .rel.ro back AND isn't honoring the noinline. We'll
probably need to go back to the original CL's setup there.
Change-Id: Ic21ea99e54a93cdc739e4f67dc308d83083607d6
Reviewed-on: https://boringssl-review.googlesource.com/14804
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In typical style I forgot to push a new revision before
landing fd49993c3b. That change accidently
dropped patchset eight when I squashed David's changes in, so this
restores that and fixes a couple of 80-char issues in a Python script.
Change-Id: I7e9338a715c68ae5c89d9d1f7d03782b99af2aa8
Reviewed-on: https://boringssl-review.googlesource.com/14784
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This is the only single-shot hash function which pretends it has a
failure case.
Change-Id: Ibf45e197eafc63c368be3783dfeec8ccb95589ab
Reviewed-on: https://boringssl-review.googlesource.com/14584
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
