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SSL_GET_PEER_TMP_KEY(3)             OpenSSL            SSL_GET_PEER_TMP_KEY(3)

NAME
       SSL_get_peer_tmp_key, SSL_get_server_tmp_key, SSL_get_tmp_key - get
       information about temporary keys used during a handshake

SYNOPSIS
        #include <openssl/ssl.h>

        long SSL_get_peer_tmp_key(SSL *ssl, EVP_PKEY **key);
        long SSL_get_server_tmp_key(SSL *ssl, EVP_PKEY **key);
        long SSL_get_tmp_key(SSL *ssl, EVP_PKEY **key);

DESCRIPTION
       SSL_get_peer_tmp_key() returns the temporary key provided by the peer
       and used during key exchange. For example, if ECDHE is in use, then
       this represents the peer's public ECDHE key. On success a pointer to
       the key is stored in *key. It is the caller's responsibility to free
       this key after use using EVP_PKEY_free(3).

       SSL_get_server_tmp_key() is a backwards compatibility alias for
       SSL_get_peer_tmp_key().  Under that name it worked just on the client
       side of the connection, its behaviour on the server end is release-
       dependent.

       SSL_get_tmp_key() returns the equivalent information for the local end
       of the connection.

RETURN VALUES
       All these functions return 1 on success and 0 otherwise.

NOTES
       This function is implemented as a macro.

SEE ALSO
       ssl(7), EVP_PKEY_free(3)

COPYRIGHT
       Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (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>.

1.1.1v                            2023-08-01           SSL_GET_PEER_TMP_KEY(3)