1 .\" $NetBSD: libcrypto.pl,v 1.3 2007/11/27 22:16:03 christos Exp $
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134 .\" ========================================================================
136 .IX Title "SSL_library_init 3"
137 .TH SSL_library_init 3 "2006-03-11" "1.1.0-dev" "OpenSSL"
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143 SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms
144 \&\- initialize SSL library by registering algorithms
148 .IX Header "SYNOPSIS"
150 \& #include <openssl/ssl.h>
152 \& int SSL_library_init(void);
153 \& #define OpenSSL_add_ssl_algorithms() SSL_library_init()
154 \& #define SSLeay_add_ssl_algorithms() SSL_library_init()
157 .IX Header "DESCRIPTION"
158 \&\fISSL_library_init()\fR registers the available ciphers and digests.
160 \&\fIOpenSSL_add_ssl_algorithms()\fR and \fISSLeay_add_ssl_algorithms()\fR are synonyms
161 for \fISSL_library_init()\fR.
164 \&\fISSL_library_init()\fR must be called before any other action takes place.
165 \&\fISSL_library_init()\fR is not reentrant.
168 \&\fISSL_library_init()\fR only registers ciphers. Another important initialization
169 is the seeding of the \s-1PRNG\s0 (Pseudo Random Number Generator), which has to
170 be performed separately.
172 .IX Header "EXAMPLES"
173 A typical \s-1TLS/SSL\s0 application will start with the library initialization,
174 will provide readable error messages and will seed the \s-1PRNG\s0.
177 \& SSL_load_error_strings(); /* readable error messages */
178 \& SSL_library_init(); /* initialize library */
179 \& actions_to_seed_PRNG();
182 .IX Header "RETURN VALUES"
183 \&\fISSL_library_init()\fR always returns \*(L"1\*(R", so it is safe to discard the return
186 .IX Header "SEE ALSO"
187 \&\fIssl\fR\|(3), \fISSL_load_error_strings\fR\|(3),
188 \&\fIRAND_add\fR\|(3)