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| author | Ingela Anderton Andin <[email protected]> | 2015-02-25 12:11:16 +0100 |
|---|---|---|
| committer | Ingela Anderton Andin <[email protected]> | 2015-03-02 15:00:46 +0100 |
| commit | ed540bd0e457fd43a5b3eaf41f9886cb63a2755a (patch) | |
| tree | c01969146c2b7db293724e0fa24d7a6f27966741 /lib/ssl/doc | |
| parent | 2032d22f69ffa8ce6c3ded5d2e2a6ff34b3b5980 (diff) | |
| download | otp-ed540bd0e457fd43a5b3eaf41f9886cb63a2755a.tar.gz otp-ed540bd0e457fd43a5b3eaf41f9886cb63a2755a.tar.bz2 otp-ed540bd0e457fd43a5b3eaf41f9886cb63a2755a.zip | |
ssl: Implement support for TLS_FALLBACK_SCSV
Diffstat (limited to 'lib/ssl/doc')
| -rw-r--r-- | lib/ssl/doc/src/ssl.xml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml index 249fee5760..0c042f8571 100644 --- a/lib/ssl/doc/src/ssl.xml +++ b/lib/ssl/doc/src/ssl.xml @@ -425,6 +425,23 @@ fun(srp, Username :: string(), UserState :: term()) -> Indication extension will be sent if possible, this option may also be used to disable that behavior.</p> </item> + <tag>{fallback, boolean()}</tag> + <item> + <p> Send special cipher suite TLS_FALLBACK_SCSV to avoid undesired TLS version downgrade. + Defaults to false</p> + <warning><p>Note this option is not needed in normal TLS usage and should not be used + to implement new clients. But legacy clients that that retries connections in the following manner</p> + + <p><c> ssl:connect(Host, Port, [...{versions, ['tlsv2', 'tlsv1.1', 'tlsv1', 'sslv3']}])</c></p> + <p><c> ssl:connect(Host, Port, [...{versions, [tlsv1.1', 'tlsv1', 'sslv3']}, {fallback, true}])</c></p> + <p><c> ssl:connect(Host, Port, [...{versions, ['tlsv1', 'sslv3']}, {fallback, true}]) </c></p> + <p><c> ssl:connect(Host, Port, [...{versions, ['sslv3']}, {fallback, true}]) </c></p> + + <p>may use it to avoid undesired TLS version downgrade. Note that TLS_FALLBACK_SCSV must also + be supported by the server for the prevention to work. + </p></warning> + </item> + </taglist> </section> |