boringssl/ssl/test
Jesse Selover 1c337e566d Option to reverify certs on resumption.
Works in the 1.3 and 1.2 client handshakes, not implemented on the
server for now.
Creates an SSL_CTX option to reverify the server certificate on session
resumption. Reverification only runs the client's certificate verify callback.
Adds new states to the client handshakes: state_reverify_server_certificate in
TLS 1.2, and state_server_certificate_reverify in TLS 1.3.
Adds a negative test to make sure that by default we don't verify the
certificate on resumption, and positive tests that make sure we do when the
new option is set.

Change-Id: I3a47ff3eacb3099df4db4c5bc57f7c801ceea8f1
Bug: chromium:347402
Reviewed-on: https://boringssl-review.googlesource.com/29984
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>
2018-08-10 20:06:22 +00:00
..
runner Option to reverify certs on resumption. 2018-08-10 20:06:22 +00:00
async_bio.cc
async_bio.h
bssl_shim.cc Ask shim whether it supports split handshakes. 2018-08-01 17:14:58 +00:00
CMakeLists.txt Add handshaker as run_tests dependency. 2018-08-01 23:47:11 +00:00
fuzzer_tags.h Fuzz SSL_serialize_handoff() and SSL_serialize_handback(). 2018-05-05 02:41:04 +00:00
fuzzer.h Remove SSL 3.0 implementation. 2018-06-28 16:54:58 +00:00
handshake_util.cc Work around missing MSan interceptor for posix_spawn. 2018-08-09 22:09:48 +00:00
handshake_util.h shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00
handshaker.cc handshaker: kick PRNG when resuming in UNSAFE_DETERMINISTIC_MODE. 2018-08-03 23:11:46 +00:00
packeted_bio.cc Remove support for blocking DTLS timeout handling. 2017-03-01 19:59:28 +00:00
packeted_bio.h Remove support for blocking DTLS timeout handling. 2017-03-01 19:59:28 +00:00
PORTING.md
README.md
settings_writer.cc shim: move |SettingsWriter| into its own file. 2018-07-02 22:26:28 +00:00
settings_writer.h shim: move |SettingsWriter| into its own file. 2018-07-02 22:26:28 +00:00
test_config.cc Option to reverify certs on resumption. 2018-08-10 20:06:22 +00:00
test_config.h Option to reverify certs on resumption. 2018-08-10 20:06:22 +00:00
test_state.cc shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00
test_state.h shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00

BoringSSL SSL Tests

This directory contains BoringSSL's protocol-level test suite.

Testing a TLS implementation can be difficult. We need to produce invalid but sufficiently correct handshakes to get our implementation close to its edge cases. TLS's cryptographic steps mean we cannot use a transcript and effectively need a TLS implementation on the other end. But we do not wish to litter BoringSSL with options for bugs to test against.

Instead, we use a fork of the Go crypto/tls package, heavily patched with configurable bugs. This code, along with a test suite and harness written in Go, lives in the runner directory. The harness runs BoringSSL via a C/C++ shim binary which lives in this directory. All communication with the shim binary occurs with command-line flags, sockets, and standard I/O.

This strategy also ensures we always test against a second implementation. All features should be implemented twice, once in C for BoringSSL and once in Go for testing. If possible, the Go code should be suitable for potentially upstreaming. However, sometimes test code has different needs. For example, our test DTLS code enforces strict ordering on sequence numbers and has controlled packet drop simulation.

To run the tests manually, run go test from the runner directory. It takes command-line flags found at the top of runner/runner.go. The -help option also works after using go test -c to make a runner.test binary first.

If adding a new test, these files may be a good starting point:

  • runner/runner.go: the test harness and all the individual tests.
  • runner/common.go: contains the Config and ProtocolBugs struct which control the Go TLS implementation's behavior.
  • test_config.h, test_config.cc: the command-line flags which control the shim's behavior.
  • bssl_shim.cc: the shim binary itself.

For porting the test suite to a different implementation see PORTING.md.