Commit Graph

14 Commits

Author SHA1 Message Date
David Benjamin
7e9949c30b Import additional test vectors from RFC 8032.
There are a few test vectors which were not imported from djb's. Mirror
those. Also as RFC 8032 uses a slightly different private key
representation, document this in curve25519.h.

BUG=187

Change-Id: I119381168ba1af9b332365fd8f974fba41759d57
Reviewed-on: https://boringssl-review.googlesource.com/14445
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2017-03-30 16:28:55 +00:00
David Benjamin
edb4c796e0 Add yet another way to spell 32.
For folks who prefer the named length constants, the current ones aren't
sufficient because the shared key isn't the private key or a public
value.

Well, it does have the same type as a public value, but it looks silly
to write:

  uint8_t secret_key[X25519_PUBLIC_VALUE_LEN];

Change-Id: I391db8ee73e2b4305d0ddd22f6d99f6abbc6b45b
Reviewed-on: https://boringssl-review.googlesource.com/12680
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-12 21:39:34 +00:00
Ladar Levison
c034e2d3ce Add ED25519_keypair_from_seed.
This function allows callers to unpack an Ed25519 “seed” value, which is
a 32 byte value that contains sufficient information to build a public
and private key from.

Change-Id: Ie5d8212a73e5710306314b4f8a93b707665870fd
Reviewed-on: https://boringssl-review.googlesource.com/12040
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-11-03 17:30:30 +00:00
David Benjamin
6f73379114 Add X25519 length constants.
Per request for named constants at
https://codereview.chromium.org/2457153003/diff/40001/net/quic/core/crypto/curve25519_key_exchange.cc#newcode27

The public one is named X25519_PUBLIC_VALUE_LEN rather than
X25519_PUBLIC_KEY_LEN for consistency with the rest of the
documentation. (Apparently we say "X25519 public value" and "Ed25519
public key".)

Change-Id: Idb76a0a9794f0f628c3b784e50a04fdb35bf3ee6
Reviewed-on: https://boringssl-review.googlesource.com/11941
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-31 18:49:33 +00:00
David Benjamin
f0e935d7ce Fold stack-allocated types into headers.
Now that we have the extern "C++" trick, we can just embed them in the
normal headers. Move the EVP_CIPHER_CTX deleter to cipher.h and, in
doing so, take away a little bit of boilerplate in defining deleters.

Change-Id: I4a4b8d0db5274a3607914d94e76a38996bd611ec
Reviewed-on: https://boringssl-review.googlesource.com/10804
Reviewed-by: Matt Braithwaite <mab@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-07 21:50:05 +00:00
Matt Braithwaite
d17d74d73f Replace Scoped* heap types with bssl::UniquePtr.
Unlike the Scoped* types, bssl::UniquePtr is available to C++ users, and
offered for a large variety of types.  The 'extern "C++"' trick is used
to make the C++ bits digestible to C callers that wrap header files in
'extern "C"'.

Change-Id: Ifbca4c2997d6628e33028c7d7620c72aff0f862e
Reviewed-on: https://boringssl-review.googlesource.com/10521
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-01 22:22:54 +00:00
Adam Langley
d2b5af56cf Revert scoped_types.h change.
This reverts commits:
8d79ed6740
19fdcb5234
8d79ed6740

Because WebRTC (at least) includes our headers in an extern "C" block,
which precludes having any C++ in them.

Change-Id: Ia849f43795a40034cbd45b22ea680b51aab28b2d
2016-07-12 08:05:38 -07:00
Adam Langley
8d79ed6740 Assume that MSVC supports C++11.
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>
2016-07-12 00:04:04 +00:00
Adam Langley
8c3c3135a2 Remove scoped_types.h.
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>
2016-07-11 23:08:27 +00:00
David Benjamin
a82e8dd9d2 Tweak X25519 documentation.
Both the header-level and section-level documentation define curve25519 which
is a little odd.

Change-Id: I81aa2b74e8028d3cfd5635e1d3cfda402ba1ae38
Reviewed-on: https://boringssl-review.googlesource.com/7680
Reviewed-by: Adam Langley <agl@google.com>
2016-04-14 14:20:56 +00:00
Arnar Birgisson
f27459e412 Add SPAKE2 over Ed25519.
SPAKE2 is a password-authenticated key exchange. This implementation is
over the twisted Edwards curve Ed25519, and uses SHA-512 as the hash
primitive.

See https://tools.ietf.org/html/draft-irtf-cfrg-spake2-03

Change-Id: I2cd3c3ebdc3d55ac3aea3a9eb0d06275509597ac
Reviewed-on: https://boringssl-review.googlesource.com/7114
Reviewed-by: Adam Langley <agl@google.com>
2016-03-01 19:34:10 +00:00
David Benjamin
415564fe2c Update draft-irtf-cfrg-curves-11 references to RFC 7748.
Change-Id: I6148df93a1748754ee6be9e2b98cc8afd38746cb
Reviewed-on: https://boringssl-review.googlesource.com/6960
Reviewed-by: Adam Langley <alangley@gmail.com>
2016-01-28 00:53:26 +00:00
Matt Braithwaite
c75c0ae088 Add #defines for ED25519 key and signature lengths.
Change-Id: I3299f8fc4602c24688339dbffb1d7939282ad6b3
Reviewed-on: https://boringssl-review.googlesource.com/6723
Reviewed-by: Adam Langley <agl@google.com>
2015-12-22 16:06:07 +00:00
Adam Langley
4fb0dc4b03 Add X25519 and Ed25519 support.
(Ed25519 support is disabled when |OPENSSL_SMALL| is defined.)

libcrypto.a sizes:

x86-64 -O3 -march=native: +78012 (1584902 → 1662914)
x86-64 -O3 -march=native -DOPENSSL_SMALL: +10596 (1356206 → 1366802)
Android armv7 Thumb -O2 -DOPENSSL_SMALL: +13132 (1258462 → 1271594)

Change-Id: I6a7e64d481e4ce4daa7d5057578081358746cfb9
Reviewed-on: https://boringssl-review.googlesource.com/6497
Reviewed-by: Adam Langley <agl@google.com>
2015-11-17 21:56:12 +00:00