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<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2012</year>
<year>2013</year>
<holder>Ericsson AB, All Rights Reserved</holder>
</copyright>
<legalnotice>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
The Initial Developer of the Original Code is Ericsson AB.
</legalnotice>
<title>ssh_client_key_api</title>
<prepared></prepared>
<docno></docno>
<date></date>
<rev></rev>
</header>
<module>ssh_client_key_api</module>
<modulesummary>
-behaviour(ssh_client_key_api).
</modulesummary>
<description>
<p>Behavior describing the API for public key handling of an SSH client. By implementing
the callbacks defined in this behavior, the public key handling of an SSH client can
be customized. By default the <c>ssh</c> application implements this behavior
with help of the standard OpenSSH files,
see the <seealso marker="SSH_app"> ssh(6)</seealso> application manual.</p>
</description>
<section>
<title>DATA TYPES</title>
<p>Type definitions that are used more than once in this module,
or abstractions to indicate the intended use of the data
type, or both. For more details on public key data types,
refer to Section 2 Public Key Records in the
<seealso marker="public_key:public_key_records"> public_key user's guide:</seealso>
</p>
<taglist>
<tag><c>boolean() =</c></tag>
<item><p><c>true | false</c></p></item>
<tag><c>string() =</c></tag>
<item><p><c>[byte()]</c></p></item>
<tag><c>public_key() =</c></tag>
<item><p><c>#'RSAPublicKey'{}| {integer(), #'Dss-Parms'{}}| term()</c></p></item>
<tag><c>private_key() =</c></tag>
<item><p><c>#'RSAPrivateKey'{} | #'DSAPrivateKey'{} | term()</c></p></item>
<tag><c>public_key_algorithm() =</c></tag>
<item><p><c>'ssh-rsa'| 'ssh-dss' | atom()</c></p></item>
</taglist>
</section>
<funcs>
<func>
<name>Module:add_host_key(HostNames, Key, ConnectOptions) -> ok | {error, Reason}</name>
<fsummary>Adds a host key to the set of trusted host keys.</fsummary>
<type>
<v>HostNames = string()</v>
<d>Description of the host that owns the <c>PublicKey</c>.</d>
<v>Key = public_key()</v>
<d>Normally an RSA or DSA public key, but handling of other public keys can be added.</d>
<v>ConnectOptions = proplists:proplist()</v>
<d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
<v>Reason = term().</v>
</type>
<desc>
<p>Adds a host key to the set of trusted host keys.</p>
</desc>
</func>
<func>
<name>Module:is_host_key(Key, Host, Algorithm, ConnectOptions) -> Result</name>
<fsummary>Checks if a host key is trusted.</fsummary>
<type>
<v>Key = public_key() </v>
<d>Normally an RSA or DSA public key, but handling of other public keys can be added.</d>
<v>Host = string()</v>
<d>Description of the host.</d>
<v>Algorithm = public_key_algorithm()</v>
<d>Host key algorithm. Is to support <c>'ssh-rsa'| 'ssh-dss'</c>, but more algorithms
can be handled.</d>
<v>ConnectOptions = proplists:proplist() </v>
<d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso>.</d>
<v>Result = boolean()</v>
</type>
<desc>
<p>Checks if a host key is trusted.</p>
</desc>
</func>
<func>
<name>Module:user_key(Algorithm, ConnectOptions) ->
{ok, PrivateKey} | {error, Reason}</name>
<fsummary>Fetches the users <em>public key</em> matching the <c>Algorithm</c>.</fsummary>
<type>
<v>Algorithm = public_key_algorithm()</v>
<d>Host key algorithm. Is to support <c>'ssh-rsa'| 'ssh-dss'</c> but more algorithms
can be handled.</d>
<v>ConnectOptions = proplists:proplist()</v>
<d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
<v>PrivateKey = private_key()</v>
<d>Private key of the user matching the <c>Algorithm</c>.</d>
<v>Reason = term()</v>
</type>
<desc>
<p>Fetches the users <em>public key</em> matching the <c>Algorithm</c>.</p>
<note><p>The private key contains the public key.</p></note>
</desc>
</func>
</funcs>
</erlref>
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