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SSL_LIBRARY_INIT(3) Library Functions Manual SSL_LIBRARY_INIT(3)

SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithmsinitialize SSL library by registering algorithms

#include <openssl/ssl.h>


#define OpenSSL_add_ssl_algorithms() SSL_library_init()
#define SSLeay_add_ssl_algorithms() SSL_library_init()

() registers the available SSL/TLS ciphers and digests.

() and () are synonyms for SSL_library_init().

SSL_library_init() must be called before any other action takes place. SSL_library_init() is not reentrant.

SSL_library_init() adds ciphers and digests used directly and indirectly by SSL/TLS.

SSL_library_init() always returns 1, so it is safe to discard the return value.

A typical TLS/SSL application will start with the library initialization, and provide readable error messages.

SSL_load_error_strings();                /* readable error messages */
SSL_library_init();                      /* initialize library */

OpenSSL 0.9.8o and 1.0.0a and later added SHA2 algorithms to SSL_library_init(). Applications which need to use SHA2 in earlier versions of OpenSSL should call () as well.

RAND_add(3), ssl(3), SSL_load_error_strings(3)

December 2, 2014 OpenBSD-6.0