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| author | Hans Nilsson <[email protected]> | 2015-10-21 17:25:42 +0200 |
|---|---|---|
| committer | Hans Nilsson <[email protected]> | 2015-11-04 12:10:06 +0100 |
| commit | c50a9a6562a14f3a9fbd2071e3b19eed8c9c9b4b (patch) | |
| tree | e521160deb7797e1b2180eb31219ede9df877708 /lib/public_key/doc | |
| parent | 4f085471fc4e1886bd7549cf135e7038a87e6a8e (diff) | |
| download | otp-c50a9a6562a14f3a9fbd2071e3b19eed8c9c9b4b.tar.gz otp-c50a9a6562a14f3a9fbd2071e3b19eed8c9c9b4b.tar.bz2 otp-c50a9a6562a14f3a9fbd2071e3b19eed8c9c9b4b.zip | |
ssh, public_key: random selection of diffie-hellman moduli
Also tool (public_key:gen_moduli_hrl) to convert an openssh moduli file to erlang format.
Diffstat (limited to 'lib/public_key/doc')
| -rw-r--r-- | lib/public_key/doc/src/public_key.xml | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/public_key/doc/src/public_key.xml b/lib/public_key/doc/src/public_key.xml index b247618efc..7f68138497 100644 --- a/lib/public_key/doc/src/public_key.xml +++ b/lib/public_key/doc/src/public_key.xml @@ -299,6 +299,37 @@ </desc> </func> + <func> + <name>dh_gex_group(MinSize, SuggestedSize, MaxSize, Groups) -> {ok, {Size,Group}} | {error,Error}</name> + <fsummary>Selects a group for Diffie-Hellman key exchange</fsummary> + <type> + <v>MinSize = positive_integer()</v> + <v>SuggestedSize = positive_integer()</v> + <v>MaxSize = positive_integer()</v> + <v>Groups = undefined | [{Size,[{G,P}]}]</v> + <v>Size = positive_integer()</v> + <v>Group = {G,P}</v> + <v>G = positive_integer()</v> + <v>P = positive_integer()</v> + </type> + <desc> + <p>Selects a group for Diffie-Hellman key exchange with the key size in the range <c>MinSize...MaxSize</c> + and as close to <c>SuggestedSize</c> as possible. If <c>Groups == undefined</c> a default set will be + used, otherwise the group is selected from <c>Groups</c>.</p> + <p>First is a size as close as possible to <c>SuggestedSize</c> selected. Then is one group with that key size + randomly selected from the list. If no size within the limits of <c>MinSize</c> and <c>MaxSize</c> is + available, <c>{error,no_group_found}</c> is returned.</p> + <p>The default list is in <c>lib/public_key/priv/ssh_moduli</c>. The format is as produced by the openssh tool + <c>ssh-keygen -G</c> followed by <c>ssh-keygen -T</c>. When that list is changed, <c>make</c> should be run in + <c>lib/public_key</c> to make it available for <c>dh_gex_group/4</c>.</p> + <note> + <p>If you change the default ssh_moduli file, be sure to run <c>ssh-keygen -T</c> as described + in the ssh-keygen manual. Failure to do so correctly will compromise the security of applications + relying on this function.</p> + </note> + </desc> + </func> + <func> <name>encrypt_private(PlainText, Key) -> binary()</name> <fsummary>Public-key encryption using the private key.</fsummary> |