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1
2=pod
3
4=head1 NAME
5
6SSL - OpenSSL SSL/TLS library
7
8=head1 SYNOPSIS
9
10=head1 DESCRIPTION
11
12The OpenSSL B<ssl> library implements the Secure Sockets Layer (SSL v2/v3) and
13Transport Layer Security (TLS v1) protocols. It provides a rich API which is
14documented here.
15
16=head1 HEADER FILES
17
18Currently the OpenSSL B<ssl> library provides the following C header files
19containing the prototypes for the data structures and and functions:
20
21=over 4
22
23=item B<ssl.h>
24
25That's the common header file for the SSL/TLS API. Include it into your
26program to make the API of the B<ssl> library available. It internally
27includes both more private SSL headers and headers from the B<crypto> library.
28Whenever you need hard-core details on the internals of the SSL API, look
29inside this header file.
30
31=item B<ssl2.h>
32
33That's the sub header file dealing with the SSLv2 protocol only.
34I<Usually you don't have to include it explicitly because
35it's already included by ssl.h>.
36
37=item B<ssl3.h>
38
39That's the sub header file dealing with the SSLv3 protocol only.
40I<Usually you don't have to include it explicitly because
41it's already included by ssl.h>.
42
43=item B<ssl23.h>
44
45That's the sub header file dealing with the combined use of the SSLv2 and
46SSLv3 protocols.
47I<Usually you don't have to include it explicitly because
48it's already included by ssl.h>.
49
50=item B<tls1.h>
51
52That's the sub header file dealing with the TLSv1 protocol only.
53I<Usually you don't have to include it explicitly because
54it's already included by ssl.h>.
55
56=back
57
58=head1 DATA STRUCTURES
59
60Currently the OpenSSL B<ssl> library functions deals with the following data
61structures:
62
63=over 4
64
65=item B<SSL_METHOD> (SSL Method)

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90
91That's the main SSL/TLS structure which is created by a server or client per
92established connection. This actually is the core structure in the SSL API.
93Under run-time the application usually deals with this structure which has
94links to mostly all other structures.
95
96=back
97
98=head1 API FUNCTIONS
99
100Currently the OpenSSL B<ssl> library exports 214 API functions.
101They are documented in the following:
102
103=head2 DEALING WITH PROTOCOL METHODS
104
105Here we document the various API functions which deal with the SSL/TLS

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620=item int B<SSL_write>(SSL *ssl, char *buf, int num);
621
622=back
623
624=head1 SEE ALSO
625
626L<openssl(1)|openssl(1)>, L<crypto(3)|crypto(3)>,
627L<SSL_accept(3)|SSL_accept(3)>, L<SSL_clear(3)|SSL_clear(3)>,
628L<SSL_connect(3)|SSL_connect(3)>, L<SSL_CTX_new(3)|SSL_CTX_new(3)>,
629L<SSL_CTX_set_ssl_version(3)|SSL_CTX_set_ssl_version(3)>,
630L<SSL_get_ciphers(3)|SSL_get_ciphers(3)>,
631L<SSL_get_error(3)|SSL_get_error(3)>, L<SSL_get_fd(3)|SSL_get_fd(3)>,
632L<SSL_get_peer_cert_chain(3)|SSL_get_peer_cert_chain(3)>,
633L<SSL_get_rbio(3)|SSL_get_rbio(3)>,
634L<SSL_get_session(3)|SSL_get_session(3)>,
635L<SSL_get_verify_result(3)|SSL_get_verify_result(3)>,
636L<SSL_library_init(3)|SSL_library_init(3)>, L<SSL_new(3)|SSL_new(3)>,
637L<SSL_read(3)|SSL_read(3)>, L<SSL_set_bio(3)|SSL_set_bio(3)>,
638L<SSL_set_fd(3)|SSL_set_fd(3)>, L<SSL_pending(3)|SSL_pending(3)>,
639L<SSL_set_session(3)|SSL_set_session(3)>,
640L<SSL_shutdown(3)|SSL_shutdown(3)>, L<SSL_write(3)|SSL_write(3)>,
641L
642
643=head1 HISTORY
644
645The L<ssl(3)|ssl(3)> document appeared in OpenSSL 0.9.2
646
647=cut
648