| SSL_library_init.3 (206048) | SSL_library_init.3 (215698) |
|---|---|
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| 132.TH SSL_library_init 3 "2010-03-24" "0.9.8n" "OpenSSL" | 127.TH SSL_library_init 3 "2010-11-16" "0.9.8p" "OpenSSL" 128.\" For nroff, turn off justification. Always turn off hyphenation; it makes 129.\" way too many mistakes in technical documents. 130.if n .ad l 131.nh |
| 133.SH "NAME" 134SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms 135\&\- initialize SSL library by registering algorithms 136.SH "SYNOPSIS" 137.IX Header "SYNOPSIS" 138.Vb 1 139\& #include <openssl/ssl.h> | 132.SH "NAME" 133SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms 134\&\- initialize SSL library by registering algorithms 135.SH "SYNOPSIS" 136.IX Header "SYNOPSIS" 137.Vb 1 138\& #include <openssl/ssl.h> |
| 140.Ve 141.PP 142.Vb 3 | 139\& |
| 143\& int SSL_library_init(void); 144\& #define OpenSSL_add_ssl_algorithms() SSL_library_init() 145\& #define SSLeay_add_ssl_algorithms() SSL_library_init() 146.Ve 147.SH "DESCRIPTION" 148.IX Header "DESCRIPTION" | 140\& int SSL_library_init(void); 141\& #define OpenSSL_add_ssl_algorithms() SSL_library_init() 142\& #define SSLeay_add_ssl_algorithms() SSL_library_init() 143.Ve 144.SH "DESCRIPTION" 145.IX Header "DESCRIPTION" |
| 149\&\fISSL_library_init()\fR registers the available ciphers and digests. | 146\&\fISSL_library_init()\fR registers the available \s-1SSL/TLS\s0 ciphers and digests. |
| 150.PP 151\&\fIOpenSSL_add_ssl_algorithms()\fR and \fISSLeay_add_ssl_algorithms()\fR are synonyms 152for \fISSL_library_init()\fR. 153.SH "NOTES" 154.IX Header "NOTES" 155\&\fISSL_library_init()\fR must be called before any other action takes place. 156.SH "WARNING" 157.IX Header "WARNING" | 147.PP 148\&\fIOpenSSL_add_ssl_algorithms()\fR and \fISSLeay_add_ssl_algorithms()\fR are synonyms 149for \fISSL_library_init()\fR. 150.SH "NOTES" 151.IX Header "NOTES" 152\&\fISSL_library_init()\fR must be called before any other action takes place. 153.SH "WARNING" 154.IX Header "WARNING" |
| 158\&\fISSL_library_init()\fR only registers ciphers. Another important initialization 159is the seeding of the \s-1PRNG\s0 (Pseudo Random Number Generator), which has to 160be performed separately. | 155\&\fISSL_library_init()\fR adds ciphers and digests used directly and indirectly by 156\&\s-1SSL/TLS\s0. |
| 161.SH "EXAMPLES" 162.IX Header "EXAMPLES" 163A typical \s-1TLS/SSL\s0 application will start with the library initialization, | 157.SH "EXAMPLES" 158.IX Header "EXAMPLES" 159A typical \s-1TLS/SSL\s0 application will start with the library initialization, |
| 164will provide readable error messages and will seed the \s-1PRNG\s0. | 160and provide readable error messages. |
| 165.PP | 161.PP |
| 166.Vb 3 | 162.Vb 2 |
| 167\& SSL_load_error_strings(); /* readable error messages */ 168\& SSL_library_init(); /* initialize library */ | 163\& SSL_load_error_strings(); /* readable error messages */ 164\& SSL_library_init(); /* initialize library */ |
| 169\& actions_to_seed_PRNG(); | |
| 170.Ve 171.SH "RETURN VALUES" 172.IX Header "RETURN VALUES" 173\&\fISSL_library_init()\fR always returns \*(L"1\*(R", so it is safe to discard the return 174value. | 165.Ve 166.SH "RETURN VALUES" 167.IX Header "RETURN VALUES" 168\&\fISSL_library_init()\fR always returns \*(L"1\*(R", so it is safe to discard the return 169value. |
| 170.SH "NOTES" 171.IX Header "NOTES" 172OpenSSL 0.9.8o and 1.0.0a and later added \s-1SHA2\s0 algorithms to \fISSL_library_init()\fR. 173Applications which need to use \s-1SHA2\s0 in earlier versions of OpenSSL should call 174\&\fIOpenSSL_add_all_algorithms()\fR as well. |
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| 175.SH "SEE ALSO" 176.IX Header "SEE ALSO" 177\&\fIssl\fR\|(3), \fISSL_load_error_strings\fR\|(3), 178\&\fIRAND_add\fR\|(3) | 175.SH "SEE ALSO" 176.IX Header "SEE ALSO" 177\&\fIssl\fR\|(3), \fISSL_load_error_strings\fR\|(3), 178\&\fIRAND_add\fR\|(3) |