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As TLS clients will perform a hostname check against certificates
the IP-address does not make much sense.
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* ingela/dtls/no-packet-upd/OTP-14664:
ssl: No support for packet option over unreliable transport
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* ingela/ssl/extend-hostname-check/OTP-14632/OTP-14655:
ssl: Fix test cases to work on all test platforms
public_key: Fix dialyzer spec
ssl: Sessions must be registered with SNI if exists
ssl: Extend hostname check to fallback to checking IP-address
public_key, ssl: Handles keys so that APIs are preserved correctly
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Use ?FUNCTION_NAME macro to enhance code as we will not back-port this
version of the ssl application to versions pre OTP 19.
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If no SNI is available and the hostname is an IP-address also check
for IP-address match. This check is not as good as a DNS hostname check
and certificates using IP-address are not recommended.
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The functions are not performance critical. Will be used
when errors occurs, CRL data base is managed or legacy OpenSSL names
are used for ciphers.
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OTP-14236 requires ssl runtime dependencies to update to latest public_key.
OTP-14181 makes ssl test cases dependent on latest version latest public_key.
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ssl_pkix_db should not hard code names. On the other hand the names
are nicer with as <Prefix>_dist than <Prefix>dist.
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* ingela/ssl/session-cache-max/OTP-14556:
ssl: Mend Max session handling
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The commit 256e01ce80b3aadd63f303b9bda5722ad313220f was a misunderstanding
that actually broke the implementation.
It is not so important to keep specific max, rather max is a threshold
when the table should be shrinked as to not grow indefinitely.
New sessions are created when the id is created and may be short lived
it they are not registered for reuse due to handshake failure.
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It is desirable to be as specific as possible in the info message, so
there can be no mistake if the alert is form the peer or generated by
us. This use to be an error message, but it is better to make it an
info message as sending an ALERT ending the connection is an expected
behaviour.
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* ingela/ssl/dtls-alert-handling/OTP-14078:
dtls: Customize alert handling for DTLS over UDP
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Test that DTLS handles "high" level packet types as http-packet types.
Low level packet type as {packet, 2} we will consider later if they
should be relevant to support or not.
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Only DTLS specific code deals with DTLS version, when common code
is used the DTLS version should be converted to the corresponding TLS version.
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From RFC 6347:
4.1.2.7. Handling Invalid Records
Unlike TLS, DTLS is resilient in the face of invalid records (e.g.,
invalid formatting, length, MAC, etc.). In general, invalid
records SHOULD be silently discarded, thus preserving the
association; however, an error MAY be logged for diagnostic
purposes. Implementations which choose to generate an alert
instead, MUST generate fatal level alerts to avoid attacks where
the attacker repeatedly probes the implementation to see how it
responds to various types of error. Note that if DTLS is run over
UDP, then any implementation which does this will be extremely
susceptible to denial-of-service (DoS) attacks because UDP forgery
is so easy. Thus, this practice is NOT RECOMMENDED for such
transports.
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* ingela/ssl/cert-handling:
ssl: Correct cipher suite handling
ssl: Modernize DSA cert chain generation
ssl: Clean
ssl: Remove test of OpenSSL
ssl: Use new cert generation
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Correct type specification in ssl:prf/5
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This is mainly fixing the test suites so that they test the intended cipher
suites, issue reported in ERL-460.
Also ssl_cipher:anonymous_suites was corrected for DTLS.
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Current implementation expects Seed to be a list.
Correct type specification to match.
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state can not be determined
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ERL-434
RFC6347 says about hello_verify_request version field as follow
https://tools.ietf.org/html/rfc6347#page-16
The server_version field has the same syntax as in TLS. However, in
order to avoid the requirement to do version negotiation in the
initial handshake, DTLS 1.2 server implementations SHOULD use DTLS
version 1.0 regardless of the version of TLS that is expected to be
negotiated.
But current DTLS server responses DTLS1.2 instead of DTLS1.0.
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Consideration of which Epoch a message belongs to is needed in the
dtls_connection:next_record function too.
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Using enter actions for retransmission timers makes the code easier to
understand. Previously the retransmission timer was incorrectly started in
the connection state. Using enter actions feels like a cleaner approach
than bloating the state with more flags.
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Correct close semantics for active once connections. This was a timing dependent bug the resulted in the close message not always reaching the ssl user process.
OTP-14443
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This is taken from
https://github.com/erlang/otp/pull/1479#issuecomment-304667528 with
permission from Ingela Andin and improves commit 8abe16c22d.
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The commit 8b10920 (OTP 19.3.1) fixed the non-delivery of final TLS
record in {active, once}, but this causes the ssl_closed message to be
lost when the TCP connection closes before ssl:close/1. The patch
restores the behavior of OTP 18.
This is the second part to fix https://bugs.erlang.org/browse/ERL-420
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Make sure to use current epoch as input to send_handshake_flight.
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An UDP socket does note have a connection and should
not recive econnreset, however this happens on on some windows versions.
Just ignoring it appears to make things work as expected!
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* ingela/dtls/opts:
ssl: Adopt setopts and getopts for DTLS
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* ingela/dtls/replay-protect/OTP-14077:
dtls: Implement replay protection
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See RFC 6347 section 3.3
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Conflicts:
OTP_VERSION
lib/inets/vsn.mk
lib/ssl/vsn.mk
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When the server_name_indication is sent automatize the
clients check of that the hostname is present in the
servers certificate. Currently server_name_indication shall
be on the dns_id format. If server_name_indication is disabled
it is up to the user to do its own check in the verify_fun.
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