1Net::SSH::Perl::Kex(3)User Contributed Perl DocumentationNet::SSH::Perl::Kex(3)
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NAME

6       Net::SSH::Perl::Kex - SSH2 Key Exchange
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SYNOPSIS

9           use Net::SSH::Perl::Kex;
10           my $kex = Net::SSH::Perl::Kex->new($ssh);
11           $kex->exchange;
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DESCRIPTION

14       Net::SSH::Perl::Kex implements base functionality for SSH2 key
15       exchange. The basic idea is this: Kex itself initializes the client
16       algorithm proposal, sends it to the server, then waits for the server's
17       proposal. From these proposals Kex chooses the algorithms that will be
18       used in the communications between client and server (eg. encryption
19       algorithm, MAC algorithm, etc.). Different algorithms can be used in
20       each direction; for example, client to server communications could be
21       encrypted using 3DES, and server to client could be encrypted using
22       RC4.
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24       The algorithm negotiation phase, as described above, includes
25       negotiation for the key-exchange algorithm to be used.  After algorithm
26       negotiation, the Kex object is reblessed into the key exchange class
27       (eg. 'Net::SSH::Perl::Kex::DH1'), and then the subclass's exchange
28       method is called to perform the key exchange.
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30       Once control returns to Kex::exchange, the client waits for the
31       SSH_MSG_NEWKEYS message; once received, the client turns on its
32       incoming encryption/MAC/compression algorithms, then sends an
33       SSH_MSG_NEWKEYS message to the server.  Finally, it turns on its
34       outgoing encryption/MAC/compression algorithms.
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AUTHOR & COPYRIGHTS

37       Please see the Net::SSH::Perl manpage for author, copyright, and
38       license information.
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40       New key exchange mechanisms added by: Lance Kinley
41       E<lkinley@loyaltymethods.com>
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POD ERRORS

44       Hey! The above document had some coding errors, which are explained
45       below:
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47       Around line 336:
48           Unknown E content in E<lkinley@loyaltymethods.com>
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52perl v5.36.0                      2022-07-22            Net::SSH::Perl::Kex(3)
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