We check the length for MD5+SHA1 but not the normal cases. Instead,
EVP_PKEY_sign externally checks the length (largely because the silly
RSA-PSS padding function forces it). We especially should be checking
the length for these because otherwise the prefix built into the ASN.1
prefix is wrong.
The primary motivation is to avoid putting EVP_PKEY inside the FIPS
module. This means all logic for supported algorithms should live in
crypto/rsa.
This requires fixing up the verify_recover logic and some tests,
including bcm.c's KAT bits.
(evp_tests.txt is now this odd mixture of EVP-level and RSA-level error
codes. A follow-up change will add new APIs for RSA-PSS which will allow
p_rsa.c to be trimmed down and make things consistent.)
Change-Id: I29158e9695b28e8632b06b449234a5dded35c3e7
Reviewed-on: https://boringssl-review.googlesource.com/15824
Reviewed-by: Adam Langley <agl@google.com>
This is a remnant of the ECDSA code returning a tri-state -1, 0, 1.
Change-Id: I8bd1fcd94e07dbffc650f414ebc19f30236378bd
Reviewed-on: https://boringssl-review.googlesource.com/15667
Reviewed-by: Adam Langley <agl@google.com>
It's amazing how short p_ed25519.c is.
BUG=187
Change-Id: Ib2a5fa7a4acf2087ece954506f81e91a1ed483e1
Reviewed-on: https://boringssl-review.googlesource.com/14449
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The resulting EVP_PKEYs do not do anything useful yet, but we are able
to parse them. Teaching them to sign will be done in a follow-up.
Creating these from in-memory keys is also slightly different from other
types. We don't have or need a public ED25519_KEY struct in
curve25519.h, so I've added tighter constructor functions which should
hopefully be easier to use anyway.
BUG=187
Change-Id: I0bbeea37350d4fdca05b6c6c0f152c15e6ade5bb
Reviewed-on: https://boringssl-review.googlesource.com/14446
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Right now this is just a wrapper over EVP_Digest and EVP_PKEY_sign. A
later change will introduce a sign_message hook to EVP_PKEY_METHOD which
Ed25519 and other single-shot-only algorithms can implement.
(EVP_PKEY_sign does not quite work for this purpose as all the other key
types believe EVP_PKEY_sign acts on a pre-hashed input.)
BUG=187
Change-Id: Ia4bbf61b25cc4a0d64bcb4364805fe9b5a6e829c
Reviewed-on: https://boringssl-review.googlesource.com/14447
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Playing around with the code, we seem to have sufficient positive test
vectors for the logic around the high bits, but not negative test
vectors. Add some. Also add a negative test vector for the trailing
byte.
(For future reference, use openssl rsautl -raw for raw RSA operations
and openssl pkeyutil for EVP_PKEY_sign.)
Change-Id: I36eddf048e51e037fd924902cd13dcb3c62bfd02
Reviewed-on: https://boringssl-review.googlesource.com/14325
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
(Imported from upstream's 04cf39207f94abf89b3964c7710f22f829a1a78f.)
The other half of the change was fixed earlier, but this logic was still
off. This code is kind of a mess and needs a rewrite, but import the
change to get it correct and sufficiently tested first.
(If we could take the sLen = -2 case away altogether, that would be
great...)
Change-Id: I5786e980f26648822633fc216315e8f77ed4d45b
Reviewed-on: https://boringssl-review.googlesource.com/14321
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
One test case is commented out, to be fixed in a follow-up.
Change-Id: I543c7f54e63837c6e8088fdcbb03226e0144b2e5
Reviewed-on: https://boringssl-review.googlesource.com/14320
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Import test data from:
ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip
This is a set of RSA-PSS and RSA-OAEP test vectors including some edge cases
with unusual key sizes.
(Imported from upstream's 946a515a2b370dbadb1f8c39e3586a8f1e3cff1a.)
Change-Id: I1d8aa85a8578e47b26c74bb4e4c246975619d574
Reviewed-on: https://boringssl-review.googlesource.com/14318
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
(Imported from upstream's 13ab87083af862e4af752efa4b0552149ed2cc19.)
Change-Id: I2f7cf8454d28d47f5ca19544479b2ab98143a3ef
Reviewed-on: https://boringssl-review.googlesource.com/13048
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is imported from upstream's
71bbc79b7d3b1195a7a7dd5f547d52ddce32d6f0 and test vectors taken
initially from 2d7bbd6c9fb6865e0df480602c3612652189e182 (with a handful
more added).
The tests are a little odd because OpenSSL supports this "salt length
recovery" mode and they go through that codepath for all verifications.
Change-Id: I220104fe87e2a1a1458c99656f9791d8abfbbb98
Reviewed-on: https://boringssl-review.googlesource.com/12822
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
One of the codepaths didn't free the group. Found by libFuzzer.
BUG=chromium:603893
Change-Id: Icb81f2f89a8c1a52e29069321498986b193a0e56
Reviewed-on: https://boringssl-review.googlesource.com/7685
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: Adam Langley <agl@google.com>
As with SPKI parsers, the intent is make EVP_PKEY capture the key's
constraints in full fidelity, so we'd have to add new types or store the
information in the underlying key object if people introduce variant key
types with weird constraints on them.
Note that because PKCS#8 has a space for arbitrary attributes, this
parser must admit a hole. I'm assuming for now that we don't need an API
that enforces no attributes and just ignore trailing data in the
structure for simplicity.
BUG=499653
Change-Id: I6fc641355e87136c7220f5d7693566d1144a68e8
Reviewed-on: https://boringssl-review.googlesource.com/6866
Reviewed-by: Adam Langley <agl@google.com>
Many consumers need SPKI support (X.509, TLS, QUIC, WebCrypto), each
with different ways to set signature parameters. SPKIs themselves can
get complex with id-RSASSA-PSS keys which come with various constraints
in the key parameters. This suggests we want a common in-library
representation of an SPKI.
This adds two new functions EVP_parse_public_key and
EVP_marshal_public_key which converts EVP_PKEY to and from SPKI and
implements X509_PUBKEY functions with them. EVP_PKEY seems to have been
intended to be able to express the supported SPKI types with
full-fidelity, so these APIs will continue this.
This means future support for id-RSASSA-PSS would *not* repurpose
EVP_PKEY_RSA. I'm worried about code assuming EVP_PKEY_RSA implies
acting on the RSA* is legal. Instead, it'd add an EVP_PKEY_RSA_PSS and
the data pointer would be some (exposed, so the caller may still check
key size, etc.) RSA_PSS_KEY struct. Internally, the EVP_PKEY_CTX
implementation would enforce the key constraints. If RSA_PSS_KEY would
later need its own API, that code would move there, but that seems
unlikely.
Ideally we'd have a 1:1 correspondence with key OID, although we may
have to fudge things if mistakes happen in standardization. (Whether or
not X.509 reuses id-ecPublicKey for Ed25519, we'll give it a separate
EVP_PKEY type.)
DSA parsing hooks are still implemented, missing parameters and all for
now. This isn't any worse than before.
Decoupling from the giant crypto/obj OID table will be a later task.
BUG=522228
Change-Id: I0e3964edf20cb795a18b0991d17e5ca8bce3e28c
Reviewed-on: https://boringssl-review.googlesource.com/6861
Reviewed-by: Adam Langley <agl@google.com>
This is the first structure to be implemented with the new BIGNUM ASN.1
routines. Object reuse in the legacy d2i/i2d functions is implemented by
releasing whatever was in *out before and setting it to the
newly-allocated object. As with the new d2i_SSL_SESSION, this is a
weaker form of object reuse, but should suffice for reasonable callers.
As ECDSA_SIG is more likely to be parsed alone than as part of another
structure (and using CBB is slightly tedious), add convenient functions
which take byte arrays. For consistency with SSL_SESSION, they are named
to/from_bytes. from_bytes, unlike the CBS variant, rejects trailing
data.
Note this changes some test expectations: BER signatures now push an
error code. That they didn't do this was probably a mistake.
BUG=499653
Change-Id: I9ec74db53e70d9a989412cc9e2b599be0454caec
Reviewed-on: https://boringssl-review.googlesource.com/5269
Reviewed-by: Adam Langley <agl@google.com>
This imports the EVP_PKEY test data of upstream's evptests.txt, but
modified to fit our test framework and with a new test driver. The
remainder of the test data will be imported separately into aead_test
and cipher_test.
Some minor changes to the test format were made to account for test
framework differences. One test has different results since we don't
support RSA signatures with omitted (rather than NULL) parameters.
Otherwise, the biggest difference in test format is that the ad-hoc
result strings are replaced with checking ERR_peek_error.
Change-Id: I758869abbeb843f5f2ac6c1cbd87333baec08ec3
Reviewed-on: https://boringssl-review.googlesource.com/4703
Reviewed-by: Adam Langley <agl@google.com>
