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-rw-r--r--lib/ssl/doc/src/ssl.xml33
1 files changed, 31 insertions, 2 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index 39b9b70579..0c042f8571 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -163,7 +163,7 @@
is supplied it will override the certfile option.</item>
<tag>{certfile, path()}</tag>
- <item>Path to a file containing the user's certificate.</item>
+ <item>Path to a file containing the user's PEM encoded certificate.</item>
<tag>{key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' |'PrivateKeyInfo', der_encoded()}}</tag>
<item> The DER encoded users private key. If this option
@@ -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>
@@ -550,7 +567,19 @@ fun(srp, Username :: string(), UserState :: term()) ->
</p>
</desc>
</func>
-
+
+ <func>
+ <name>clear_pem_cache() -> ok </name>
+ <fsummary> Clears the pem cache</fsummary>
+
+ <desc><p>PEM files, used by ssl API-functions, are cached. The
+ cache is regularly checked to see if any cache entries should be
+ invalidated, however this function provides a way to
+ unconditionally clear the whole cache.
+ </p>
+ </desc>
+ </func>
+
<func>
<name>connect(Socket, SslOptions) -> </name>
<name>connect(Socket, SslOptions, Timeout) -> {ok, SslSocket}