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SSL_library_init

NAME

SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms - initialize SSL library by registering algorithms

SYNOPSIS

  #include <openssl/ssl.h>
 
  int SSL_library_init(void);
  #define OpenSSL_add_ssl_algorithms()    SSL_library_init()
  #define SSLeay_add_ssl_algorithms()     SSL_library_init()
 
 

DESCRIPTION

SSL_library_init() registers the available ciphers and digests.

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

NOTES

SSL_library_init() must be called before any other action takes place.

WARNING

SSL_library_init() only registers ciphers. Another important initialization is the seeding of the PRNG (Pseudo Random Number Generator), which has to be performed separately.

EXAMPLES

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

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

RETURN VALUES

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

SEE ALSO

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