This removes 16k from a release-mode build of the bssl tool. Now that we've
finished the AEAD refactor, there's no use in keeping this around as a
prototype for "stateful AEADs".
Before:
Did 2264000 RC4-MD5 (16 bytes) seal operations in 1000430us (2263026.9 ops/sec): 36.2 MB/s
Did 266000 RC4-MD5 (1350 bytes) seal operations in 1000984us (265738.5 ops/sec): 358.7 MB/s
Did 50000 RC4-MD5 (8192 bytes) seal operations in 1014209us (49299.5 ops/sec): 403.9 MB/s
After:
Did 1895000 RC4-MD5 (16 bytes) seal operations in 1000239us (1894547.2 ops/sec): 30.3 MB/s
Did 199000 RC4-MD5 (1350 bytes) seal operations in 1001361us (198729.5 ops/sec): 268.3 MB/s
Did 39000 RC4-MD5 (8192 bytes) seal operations in 1014832us (38430.0 ops/sec): 314.8 MB/s
There is a non-trivial performance hit, but this cipher doesn't matter much and
the stitched mode code reaches into MD5_CTX and RC4_KEY in somewhat unfortunate
ways.
Change-Id: I9ecd28d6afb54e90ce61baecc641742af2ae6269
Reviewed-on: https://boringssl-review.googlesource.com/6752
Reviewed-by: Adam Langley <agl@google.com>
This function allows one to extract the current IVs from an SSL
connection. This is needed for the CBC cipher suites with implicit IVs
because, for those, the IV can't be extracted from the handshake key
material.
Change-Id: I247a1d0813b7a434b3cfc88db86d2fe8754344b6
Reviewed-on: https://boringssl-review.googlesource.com/6433
Reviewed-by: Adam Langley <agl@google.com>
Like the non-stitched variant, this "AEAD" uses the output buffer as
scratch space for the MAC. Thus it should require that max_out_len is
large enough to fit that, even though it will never return that large of
input.
Change-Id: I5b30b0756408c2e433448f540e7c65251336d2f8
Reviewed-on: https://boringssl-review.googlesource.com/4704
Reviewed-by: Adam Langley <agl@google.com>
This allows the current RC4 state of an SSL* to be extracted. We have
internal uses for this functionality.
Change-Id: Ic124c4b253c8325751f49e7a4c021768620ea4b7
Reviewed-on: https://boringssl-review.googlesource.com/3722
Reviewed-by: Adam Langley <agl@google.com>
Instead, add a separate init_with_direction hook. Normal AEADs ignore the
direction, while legacy AEADs must be initialized with it. This avoids
maintaining extra state to support the delayed initialization.
Change-Id: I25271f0e56ee2783a2fd4d4026434154d58dc0a8
Reviewed-on: https://boringssl-review.googlesource.com/3731
Reviewed-by: Adam Langley <agl@google.com>
Including string.h in base.h causes any file that includes a BoringSSL
header to include string.h. Generally this wouldn't be a problem,
although string.h might slow down the compile if it wasn't otherwise
needed. However, it also causes problems for ipsec-tools in Android
because OpenSSL didn't have this behaviour.
This change removes string.h from base.h and, instead, adds it to each
.c file that requires it.
Change-Id: I5968e50b0e230fd3adf9b72dd2836e6f52d6fb37
Reviewed-on: https://boringssl-review.googlesource.com/3200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
The EVP_CIPHER codepath should no longer be used with TLS. It still exists for
DTLS and SSLv3. The AEAD construction in TLS does not allow for
variable-overhead AEADs, so stateful AEADs do not include the length in the ad
parameter. Rather the AEADs internally append the unpadded length once it is
known. EVP_aead_rc4_md5_tls is modified to account for this.
Tests are added (and RC4-MD5's regenerated) for each of the new AEADs. The
cipher tests are all moved into crypto/cipher/test because there's now a lot of
them and they clutter the directory listing.
In ssl/, the stateful AEAD logic is also modified to account for stateful AEADs
with a fixed IV component, and for AEADs which use a random nonce (for the
explicit-IV CBC mode ciphers).
The new implementation fixes a bug/quirk in stateless CBC mode ciphers where
the fixed IV portion of the keyblock was generated regardless. This is at the
end, so it's only relevant for EAP-TLS which generates a MSK from the end of
the key block.
Change-Id: I2d8b8aa11deb43bde2fd733f4f90b5d5b8cb1334
Reviewed-on: https://boringssl-review.googlesource.com/2692
Reviewed-by: Adam Langley <agl@google.com>
This probably snuck in when adapting the code from upstream. There's a header
file for it now. (Also it's uint32_t now rather than unsigned int.)
Change-Id: Ie8f45bc7a88988744174182a70512c0eff37cc1c
Reviewed-on: https://boringssl-review.googlesource.com/2441
Reviewed-by: Adam Langley <agl@google.com>
Otherwise, in C, it becomes a K&R function declaration which doesn't actually
type-check the number of arguments.
Change-Id: I0731a9fefca46fb1c266bfb1c33d464cf451a22e
Reviewed-on: https://boringssl-review.googlesource.com/1582
Reviewed-by: Adam Langley <agl@google.com>
This change adds the stitched RC4-MD5 code from upstream OpenSSL but
exposes it as an AEAD. It's not a normal AEAD (it's stateful thus
doesn't take an nonce) but forcing pre-AEAD cipher suites in the AEAD
interface is less painful than forcing AEADs into the EVP_CIPHER
interface. Over time, more and more cipher suites will be exposed as
TLS-specific AEADs and then ssl/ can drop support for EVP_CIPHER.
See original code from upstream:
https://github.com/openssl/openssl/blob/master/crypto/evp/e_rc4_hmac_md5.c
Change-Id: Ia9267b224747f02be6b934ea0b2b50e1f529fab9
Reviewed-on: https://boringssl-review.googlesource.com/1043
Reviewed-by: Adam Langley <agl@google.com>
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
