Provided by: libssl-doc_1.1.0g-2ubuntu4_all bug

NAME

       EVP_PKEY_new, EVP_PKEY_up_ref, EVP_PKEY_free - private key allocation functions

SYNOPSIS

        #include <openssl/evp.h>

        EVP_PKEY *EVP_PKEY_new(void);
        int EVP_PKEY_up_ref(EVP_PKEY *key);
        void EVP_PKEY_free(EVP_PKEY *key);

DESCRIPTION

       The EVP_PKEY_new() function allocates an empty EVP_PKEY structure which is used by OpenSSL
       to store private keys. The reference count is set to 1.

       EVP_PKEY_up_ref() increments the reference count of key.

       EVP_PKEY_free() decrements the reference count of key and, if the reference count is zero,
       frees it up. If key is NULL, nothing is done.

NOTES

       The EVP_PKEY structure is used by various OpenSSL functions which require a general
       private key without reference to any particular algorithm.

       The structure returned by EVP_PKEY_new() is empty. To add a private key to this empty
       structure the functions described in EVP_PKEY_set1_RSA(3) should be used.

RETURN VALUES

       EVP_PKEY_new() returns either the newly allocated EVP_PKEY structure or NULL if an error
       occurred.

       EVP_PKEY_up_ref() returns 1 for success and 0 for failure.

SEE ALSO

       EVP_PKEY_set1_RSA(3)

HISTORY

       EVP_PKEY_new() and EVP_PKEY_free() exist in all versions of OpenSSL.

       EVP_PKEY_up_ref() was first added to OpenSSL 1.1.0.

COPYRIGHT

       Copyright 2002-2016 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>.