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* Use enums to represent TLS signature and kex algorithms.Jack Lloyd2018-01-281-9/+12
| | | | Adds support for PSS signatures (currently verifying only).
* Avoid resuming a session if policy doesn't allow itJack Lloyd2018-01-281-1/+1
| | | | Previously if the policy changed we'd continue to resume. #1431
* For TLS client auth add callback giving list of trusted CA namesJack Lloyd2018-01-271-3/+4
| | | | Fixes #1261
* Add an examine callback alsoJack Lloyd2018-01-271-0/+2
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* Add ability for application to control which TLS extensions are usedJack Lloyd2018-01-271-0/+2
| | | | GH #1186
* Remove vestigial support for TLS compressionJack Lloyd2018-01-211-4/+2
| | | | | It was never supported and never will be. Removing negotiation entirely simplifies the code a bit.
* Avoid saving a resumed session multiple timesJack Lloyd2017-12-071-1/+3
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* On resuming a client session, save the certificates that were used.Jack Lloyd2017-12-071-2/+11
| | | | GH #1303
* Add copyright statements to files modified in the preceding 2 commitsHarry Reimann2017-12-041-0/+1
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* Make support for certificate status messages optional via policyHarry Reimann2017-12-041-2/+22
| | | | | | | | Don't postpone the verification of a server certificate if certificate status messages are not expected in client handshake. When using an external crypto device it may be necessary to verify the certificate before using the public key for verification of the signature in the server key exchange message.
* Add an explicit catch for a server trying to negotiate SSLv3Jack Lloyd2017-11-281-1/+7
| | | | | | | This was already caught with the policy check later but it's better to be explicit. (And in theory an application might implement their policy version check to be "return true", which would lead to us actually attempting to negotiate SSLv3).
* Apply final annotations to the library alsoJack Lloyd2017-09-221-1/+1
| | | | | Done by a perl script which converted all classes to final, followed by selective reversion where it caused compilation failures.
* More include header cleanupsJack Lloyd2017-09-211-2/+0
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* Export tls_messages.h as a public headerRené Korthaus2016-12-231-1/+1
| | | | | | | TLS::Callbacks::inspect_handshake_message() allows applications to inspect all handshake messages, but this requires access to the types in tls_messages.h. As a matter of fact, this also exports tls_extensions.h as a public header.
* Convert to using standard uintN_t integer typesJack Lloyd2016-12-181-5/+5
| | | | | | Renames a couple of functions for somewhat better name consistency, eg make_u32bit becomes make_uint32. The old typedefs remain for now since probably lots of application code uses them.
* Add OCSP stapling support to TLS clientJack Lloyd2016-11-261-26/+60
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* Add TLS::Policy::minimum_signature_strengthJack Lloyd2016-11-251-1/+2
| | | | | | Changes TLS callback API for cert verify to accept Policy& Sets default signature strength to 110 to force RSA ~2048.
* Move TLS cert verification callback from Credentials_Manager to TLS::CallbacksJack Lloyd2016-11-231-1/+6
| | | | | | It is the only function in C_M which is called on to process session-specific (and adversarially provided) inputs, rather than passively returning some credential which is typically not session specific.
* Fix TLS resumption bugsJack Lloyd2016-10-271-11/+18
| | | | | | | | | | | | | | | | | | | | | The client would attempt to resume a session, even if the session was for a version other than what it wanted to offer. If the server resumed with the original version, the client would then reject the 'incorrect' version. Instead, if the session is for a version other than what we want to offer, just start a fresh handshake. Fix resuming in the EtM case - even if the policy says otherwise, always resume EtM sessions as EtM. Servers are required to reject a MtE resumption on an EtM session. The new client hello already ordered extensions to prevent an empty extension from ever being last (working around a bug in some dumb stack somewhere), but this was not true for the resume case. Fix that. Beef up tests a bit - test ECDSA suites, alerts, and sqlite3 session db. Sharing the session state across all the tests is what tipped me off on the resumption bugs in the first place - as usual, what is not tested does not work correctly.
* Merge master into this branch, resolving conflicts with #457/#576Jack Lloyd2016-08-311-17/+36
|\ | | | | | | which recently landed on master.
| * Changes to TLS::Callbacks for GH PR #457Jack Lloyd2016-08-161-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make TLS::Channel::m_callbacks a reference, so deriving from TLS::Callbacks works Split out the compat (std::function) based interface to Compat_Callbacks. This avoids the overhead of empty std::functions when using the virtual interface, and ensures the virtual interface works since there is no callback path that does not involve a vtable lookup. Rename the TLS::Callback functions. Since the idea is that often an owning class will pass *this as the callbacks argument, it is good to namespace the virtual functions so as not to conflict with other names chosen by the class. Specifically, prefixes all cb functions with tls_ Revert changes to use the old style alert callback (with no longer used data/len params) so no API changes are required for old code. The new Callbacks interface continues to just receive the alert code itself. Switch to virtual function interface in CLI tls_client for testing. Inline tls_server_handshake_state.h - only used in tls_server.cpp Fix tests - test looked like it was creating a new client object but it was not actually being used. And when enabled, it failed because the queues were not being emptied in between. So, fix that.
| * Removed Handshake_Info class.Matthias Gierlings2016-06-191-9/+7
| | | | | | | | | | - Undid changes replacing Hanshake_IO, Handshake_Hash with Handshake_Info.
| * Removed TLS::Session::PropertiesMatthias Gierlings2016-06-191-13/+13
| | | | | | | | | | - Removed proposed wrapper class to logically group TLS session properties.
| * Compatibility patch for TLS::Callback interfaceMatthias Gierlings2016-06-191-7/+53
| | | | | | | | | | - Added legacy constructor support for TLS::Channel, TLS::Client, TLS::Server.
| * Added virtual Callback InterfaceMatthias Gierlings2016-06-191-1/+4
| | | | | | | | | | | | | | | | | | - extracted inner class TLS::Channel::Callbacks to stand-alone class TLS::Callbacks. - provided default implementations for TLS::Callbacks members executing calls to std::function members for backward compatibility. - applied changes to cli, tests and TLS::Channel related classes to be compatible with new interface.
| * Implemented Feedback on GH #457Matthias Gierlings2016-06-191-2/+2
| | | | | | | | | | | | - Removed deprecated TLS-Alert-Callback parameters. - Fixed improper naming of accessor for ALPN-Strings in tls_client.h - Fixed erroneous indentation on Ciphersuite Constructor.
| * Reduction of code complexity in TLS classes.Matthias Gierlings2016-06-191-56/+31
| | | | | | | | | | | | | | -reduced number of parameters in various methods -reduced cyclomatic complexity (McCabe-Metric) -removed "TLSEXT_HEARTBEAT_SUPPORT" from tls_extensions.h (leftover from heartbeat extension removal?)
* | Address some issues with PR 492Jack Lloyd2016-08-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds copyright notices for Juraj Somorovsky and Christian Mainka of Hackmanit for the changes in 7c7fcecbe6a and 6d327f879c Add Policy::check_peer_key_acceptable which lets the app set an arbitrary callback for examining keys - both the end entity signature keys from certificates and the peer PFS public keys. Default impl checks that the algorithm size matches the min keylength. This centralizes this logic and lets the application do interesting things. Adds a policy for ECDSA group size checks. Increases default policy minimums to 2048 RSA and 256 ECC. (Maybe I'm an optimist after all.)
* | Encrypt-then-MAC extension (RFC 7366)Juraj Somorovsky2016-05-111-0/+2
| | | | | | | | | | | | Introduced a countermeasure against the logjam attack Short TLS records (AES-CBC) now return BAD_RECORD_MAC Fixed a compatibility problem with OpenSSL and TLS 1.0 (BEAST countermeasure)
* | TLS Policy supportChristian Mainka2016-05-031-1/+1
|/ | | | | | | * --policy works for TLS Server and TLS Client * Example policy BSI_TR-02102-2.txt * Fine granular configuration for TLS 1.0, 1.1, 1.2 and DTLS 1.0 and 1.2 * Minimum ecdh and rsa group size
* Check that TLS signature type is accepted by the policy.Jack Lloyd2016-03-061-1/+1
| | | | | | Previously the signature hashes and algos info was used to set the v1.2 signature_algorithms extension, but if the counterparty ignored the extension and sent something else, we wouldn't notice.
* Remaining cppcheck fixes that are not covered by GH #444Daniel Neus2016-03-051-2/+2
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* Remove support for the TLS min fragment length extension.Jack Lloyd2016-02-071-1/+0
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* Add extended master secret extension (RFC 7627) to TLSJack Lloyd2016-01-031-1/+2
| | | | Interop tested with mbed TLS
* TLS improvementsJack Lloyd2015-10-251-15/+38
| | | | | | | | | | | | | | Use constant time operations when checking CBC padding in TLS decryption Fix a bug in decoding ClientHellos that prevented DTLS rehandshakes from working: on decode the session id and hello cookie would be swapped, causing confusion between client and server. Various changes in the service of finding the above DTLS bug that should have been done before now anyway - better control of handshake timeouts (via TLS::Policy), better reporting of handshake state in the case of an error, and finally expose the facility for per-message application callbacks.
* Fix invalid iterator use in TLS clientJack Lloyd2015-07-051-1/+1
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* Add ALPN (RFC 7301) and remove NPNlloyd2015-03-201-51/+12
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* Remove algo factory, engines, global RNG, global state, etc.lloyd2015-02-041-4/+9
| | | | | | | | | | | | | | | Convert all uses of Algorithm_Factory and the engines to using Algo_Registry The shared pool of entropy sources remains but is moved to EntropySource. With that and few remaining initializations (default OIDs and aliases) moved elsewhere, the global state is empty and init and shutdown are no-ops. Remove almost all of the headers and code for handling the global state, except LibraryInitializer which remains as a compatability stub. Update seeding for blinding so only one hacky almost-global RNG instance needs to be setup instead of across all pubkey uses (it uses either the system RNG or an AutoSeeded_RNG if the system RNG is not available).
* Add typedefs for function signatures/types used in TLS for easier readinglloyd2015-01-271-18/+19
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* Ensure all files have copyright and license info.lloyd2015-01-101-1/+1
| | | | | Update license header line to specify the terms and refer to the file, neither of which it included before.
* Add DTLS-SRTP key establishment from RFC 5764 (required for WebRTC).lloyd2015-01-041-1/+9
| | | | | | | | | | | | | | Github issue 27. Refactor server hello handling to make it easier to handle other extensions. The manual specified that 224 bit NIST primes were disabled by default for TLS but they were not. Additionaly disable the 256k1 curve and reorder the remaining curves by size. Rewrite the max fragment length extension code to roughly what an ideal compiler would have turned the original code into, using a switch instead of a lookup into a small constant std::map.
* A TLS Server can now process either TLS or DTLS but not either,lloyd2014-11-151-1/+2
| | | | | with the setting set in the constructor. This prevents various surprising things from happening to applications and simplifies record processing.
* Let TLS policy disable putting the timestamp in the hello random fieldslloyd2014-11-041-1/+1
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* Fix various warnings from VC++ 2014 and add missing includelloyd2014-10-311-0/+1
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* If the server offers us a SCSV instead of a real ciphersuite send a fatal alertlloyd2014-10-301-0/+6
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* Specify version number in message when we reject due to policylloyd2014-10-061-1/+2
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* Verify that the server did not send any extension that the client didn'tlloyd2014-04-111-10/+12
| | | | offer. Previously the client only checked a couple of special cases.
* Guess I won't be needing theselloyd2014-01-181-1/+0
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* Move lib into srclloyd2014-01-101-0/+530
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