Updated: 2022/Sep/29

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SSL_library_init(3)                 OpenSSL                SSL_library_init(3)



NAME
       SSL_library_init, OpenSSL_add_ssl_algorithms - initialize SSL library
       by registering algorithms

LIBRARY
       libcrypto, -lcrypto

SYNOPSIS
        #include <openssl/ssl.h>

        int SSL_library_init(void);

        int OpenSSL_add_ssl_algorithms(void);

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

       OpenSSL_add_ssl_algorithms() is a synonym for SSL_library_init() and is
       implemented as a macro.

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

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

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

SEE ALSO
       ssl(7), RAND_add(3)

HISTORY
       The SSL_library_init() and OpenSSL_add_ssl_algorithms() functions were
       deprecated in OpenSSL 1.1.0 by OPENSSL_init_ssl().

COPYRIGHT
       Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use
       this file except in compliance with the License.  You can obtain a copy
       in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.



3.0.12                            2023-05-07               SSL_library_init(3)