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2019-04-18ssl: Fix type specs of ssl_internal.hrlPéter Dimitrov
Change 'term()' to 'any()'. Allow 'undefined' for all fields of #ssl_options{}. Change-Id: I00632bfd2b172974a99680a82f326f25b92b9974
2019-03-21ssl: Remove default support for legacy versionsIngela Anderton Andin
TLS-1.0, TLS-1.1 and DTLS-1.0 are now considered legacy
2019-02-18ssl: Correct merge commit thanks to dialyzerIngela Anderton Andin
Also make a weaker spec in ssl_internal.hrl for now as it creates a conflict between error handling and dialyzer warnings.
2019-02-18Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/dtls_connection.erl lib/ssl/src/ssl_connection.erl lib/ssl/src/ssl_connection.hrl lib/ssl/src/tls_connection.erl
2019-02-05Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/doc/src/ssl.xml lib/ssl/src/ssl.erl lib/ssl/src/ssl_cipher_format.erl lib/ssl/src/tls_handshake.erl
2019-02-05ssl: Use specs to generate type documentationIngela Anderton Andin
2019-01-15Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/ssl.erl
2019-01-14ssl: Add value 'save' to reuse_sessions and reuse_session client optionIngela Anderton Andin
We want to be able to save a specific session to reuse, and make sure it is reusable immediatly when the connection has been established. Add client option {reuse_session, SessionID::binary()} We also do not want clients to save sessions that it did not verify. Additionaly change behaviour of the client and server to not save sessions if reuse_session is set to false.
2018-12-04Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/dtls_connection.erl lib/ssl/src/ssl_connection.erl lib/ssl/src/tls_connection.erl
2018-12-03ssl: Internaly use {active, N}Ingela Anderton Andin
Make next_record an internal help function to next_event and avoid duplicate calls to tls_socket:setopts for setting the active option.
2018-10-24ssl: Implement TLS 1.3 state machine skeletonPéter Dimitrov
Change-Id: I4b382a7907247cc2099951fdefa40f1511b1123e
2018-09-06ssl: Add new extension with encode/decode functionsPéter Dimitrov
Change-Id: I8a5c11b3503b44cfc6cbd6e4fd8ff3005a8669dd
2018-08-30Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/ssl_connection.erl lib/ssl/src/tls_connection.erl
2018-08-27ssl: Adopt distribution over TLS to use new sender processIngela Anderton Andin
2018-07-19ssl: Implement downgrade protection mechanism (TLS 1.3)Péter Dimitrov
If negotiating TLS 1.2, TLS 1.3 servers MUST set the last eight bytes of their Random value to the bytes: 44 4F 57 4E 47 52 44 01 If negotiating TLS 1.1 or below, TLS 1.3 servers MUST and TLS 1.2 servers SHOULD set the last eight bytes of their Random value to the bytes: 44 4F 57 4E 47 52 44 00 Change-Id: If35112f63f42a9af351f4ca9b1846fd3f5b08167
2018-07-19ssl: Fix handling of TLS record versionsPéter Dimitrov
- Introduce new macro ALL_TLS_RECORD_VERSIONS to decouple ALL_AVAILABLE_VERSIONS from the list of valid TLS record versions. It consists of versions allowed in TLSCiphertext.version (TLS 1.2 and prior) and TLSCiphertext.legacy_record_version (TLS 1.3). - TLS 1.3 sets TLSCiphertext.legacy_record_version to 0x0303 for all records generated other than an initial ClientHello, where it MAY also be 0x0301. - TLSPlaintext.legacy_record_version is ignored. Change-Id: Iabb1a954ab21f8be012e6460ae99ab533e31e123
2018-07-19ssl: Add experimental version 'tlsv1.3'Péter Dimitrov
- Add 'tlsv1.3' to the available versions. It can be used to trigger experimental behavior while implementing TLS 1.3. - Add dummy clauses for handling version {3,4} of TLS. - Update ssl_logger to handle unknown versions of TLS. Change-Id: I564ffa47dca18b59f0dc16c9809dfd7adaf2d333
2018-07-02ssl: Add support for stateful loggingPéter Dimitrov
- Introduce stateful logging levels to the ssl application: The SSL option 'log_alert' sets log level to notice/warning if it is set to true/false. Default log level is notice. - Add new SSL option 'log_level' that overrides the value of 'log_alert'. Default value is notice. - 'log_level' debug triggers verbose logging of TLS protocol messages and logging of ignored alerts in DTLS. Change-Id: I28d3f4029a5d504ec612abe4b9ae0b7d9b115197
2018-06-20ssl: Define VSN macro in sourcePéter Dimitrov
Define VSN macro in source to remove syntax errors while editing the code. Change-Id: I508d16641cb65ec954fc3fcae90183fa297770da
2018-06-18Update copyright yearHenrik Nord
2018-06-08ssl: Add option customize_hostname_checkIngela Anderton Andin
2018-05-23ssl: Generalize DTLS packet multiplexingIngela Anderton Andin
We want to prepare the code for more advanced DTLS usage and possibility to run over SCTP. First assumption was that the demultiplexer process "dtls listener" was needed for UDP only and SCTP could be made more TLS like. However the assumption seems not to hold. This commit prepares for customization possibilities.
2018-04-24ssl: Add new API functionsIngela Anderton Andin
2018-03-09ssl: Remove interoperability option v2_hello_compatibleIngela Anderton Andin
2018-01-17dtls: Add DTLS handling to utility functionsIngela Anderton Andin
2017-11-08ssl: Add private key configuration for crypto engineIngela Anderton Andin
2017-05-04Update copyright yearRaimo Niskanen
2017-03-30dtls: Implement DTLS cookie secret generationIngela Anderton Andin
2017-03-07dtls: 'dtlsv1.2' corresponds to 'tlsv1.2'Ingela Anderton Andin
'dtlsv1.2' should not be included in MIN_DATAGRAM_SUPPORTED_VERSIONS as this is the default when crypto does not have sufficient support for 'tlsv1.2' and 'dtlsv1.2'
2017-01-17ssl: Handle really big handshake packagesIngela Anderton Andin
If a handshake message is really big it could happen that the ssl process would hang due to failing of requesting more data from the socket. This has been fixed. Also added option to limit max handshake size. It has a default value that should be big enough to handle normal usage and small enough to mitigate DoS attacks.
2016-12-07Update copyright-yearErlang/OTP
2016-12-05ssl: Implement DTLS state machineIngela Anderton Andin
Beta DTLS, not production ready. Only very basically tested, and not everything in the SPEC is implemented and some things are hard coded that should not be, so this implementation can not be consider secure. Refactor "TLS connection state" and socket handling, to facilitate DTLS implementation. Create dtls "listner" (multiplexor) process that spawns DTLS connection process handlers. Handle DTLS fragmentation. Framework for handling retransmissions. Replay Detection is not implemented yet. Alerts currently always handled as in TLS.
2016-11-02Add ECC curve selection order config in TLS serverFred Hebert
As per RFC 4492 Sec 5.1, the preferred order of selection of named curves is based on client preferences. Currently, the SSL application only picks entries according to the absolute order of entries as tracked in a hardcoded list in code. This patch changes things so that the client-specified order is preferred. It also allows a mode where the server can be configured to override the client's preferred order with its own, although the chosen ECC must still be within both lists. The configuration is done through the following options: - `eccs`, shared by clients and servers alike, allows the specification of the supported named curves, in their preferred order, and may eventually support more values for explicit primes and so on. - `honor_ecc_order`, a server-only option, is similar to `honor_cipher_order` and will, by default let the server pick the client-preferred ECC, and otherwise pick the server-preferred one. The default value for `eccs` is the same as before, although the server-chosen ECC now defaults to the client rather than previous choice. A function `ssl:eccs()` has been added that returns the highest supported ECCs for the library.
2016-06-03ssl: Add option to phase out support for sslv2 client helloIngela Anderton Andin
ssl servers can recognize sslv2 client hellos to interop with clients that support higher version of SSL/TLS but also offers sslv2 Conflicts: lib/ssl/src/tls_connection.erl
2016-05-26ssl: Add BEAST mitigation selection optionKenneth Lakin
Some legacy TLS 1.0 software does not tolerate the 1/n-1 content split BEAST mitigation technique. This commit adds a beast_mitigation SSL option (defaulting to one_n_minus_one) to select or disable the BEAST mitigation technique. Valid option values are (one_n_minus_one | zero_n | disabled).
2016-05-03ssl: Use gen_statem instead of gen_fsmIngela Anderton Andin
Also reduce timing issues in tests
2016-04-06ssl: Add option signature_algsIngela Anderton Andin
In TLS-1.2 The signature algorithm and the hash function algorithm used to produce the digest that is used when creating the digital signature may be negotiated through the signature algorithm extension RFC 5246. We want to make these algorithm pairs configurable. In connections using lower versions of TLS these algorithms are implicit defined and can not be negotiated or configured. DTLS is updated to not cause dialyzer errors, but needs to get a real implementation later.
2015-11-26Merge branch 'maint'Zandra
2015-10-22fix incorrect number of seconds in 24h macroPawel Pikula
The previous commit - 7b93f5d8a224a0a076a420294c95a666a763ee60 fixed the macro only in one place.
2015-10-09Update SSLHans Bolinder
Record field types have been modified due to commit 8ce35b2: "Take out automatic insertion of 'undefined' from typed record fields".
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-10Merge branch 'ferd/deny-client-renegotiation'Henrik Nord
* ferd/deny-client-renegotiation: Add disable client-initiated renegotiation option Conflicts: lib/ssl/doc/src/ssl.xml lib/ssl/src/ssl.erl OTP-12815
2015-06-03Add disable client-initiated renegotiation optionFred Hebert
Client-initiated renegotiation is more costly for the server than the client, and this feature can be abused in denial of service attempts. Although the ssl application already takes counter-measure for these (via cooldown periods between renegotiations), it can be useful to disable the feature entirely. This patch adds the `{client_renegotiation, boolean()}' option to the server-side of the SSL application (defaulting to `true' to be compatible with the current behaviour). The option disables the ability to do any renegotiation at all in the protocol's state, reusing the existing denial code, but without opening the code path that sets up a timed message to eventually reopen it up.
2015-05-12ssl: Refactored and corrected sni_fun handlingIngela Anderton Andin
Dialyzer warned about the incorrect match of Packets. Code was refactored and the problem avoided in the process. Dialyzer warned that the empty tuple is not a function as the contract said it should be. Changed the handling of the sni_fun default value to be undefined and added it to the contract.
2015-05-12ssl: add option sni_funQijiang Fan
The newly added function sni_fun allows dynamic update of SSL options like keys and certificates depending on different SNI hostname, rather than a predefined rules of SSL options.
2015-05-12ssl: add SNI server supportQijiang Fan
2015-03-23ssl: Dialyzer fixesIngela Anderton Andin
2015-03-17ssl: Add TLS-ALPN supportLoïc Hoguin
This commit adds support for RFC7301, application-layer protocol negotiation. ALPN is the standard based approach to the NPN extension, and is required for HTTP/2. ALPN lives side by side with NPN and provides an equivalent feature but in this case it is the server that decides what protocol to use, not the client. When both ALPN and NPN are sent by a client, and the server is configured with both ALPN and NPN options, ALPN will always take precedence. This behavior can also be found in the OpenSSL implementation of ALPN. ALPN and NPN share the ssl:negotiated_protocol/1 function for retrieving the negotiated protocol. The previously existing function ssl:negotiated_next_protocol/1 still exists, but has been deprecated and removed from the documentation. The tests against OpenSSL require OpenSSL version 1.0.2+.
2015-03-09ssl: Integrate public_key CRL verification with the ssl applicationIngela Anderton Andin
2015-03-05Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/ssl_cipher.erl lib/ssl/test/ssl_basic_SUITE.erl
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